| File name: | ioperm.exe |
| Full analysis: | https://app.any.run/tasks/427309eb-e97e-46e8-a80b-85907d90309a |
| Verdict: | Malicious activity |
| Analysis date: | May 25, 2020, 18:56:34 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed |
| MD5: | 97A719BDD0F9BDEED48D827107DD3E96 |
| SHA1: | D56ECE1FFEBAB919F1334DBAB22EDC0CE696020F |
| SHA256: | 315B5AF8B2051A820BCF096DB2B486E98A48F9BF8FA93BE503600D3193CF29A2 |
| SSDEEP: | 192:69MZuHTy98d/fZHnHSB0x9vVyg0ToICASLTq8tqBoDU4:QMZOTOQ3ZyyH0ky8OUqBoQ4 |
| .exe | | | UPX compressed Win32 Executable (39.3) |
|---|---|---|
| .exe | | | Win32 EXE Yoda's Crypter (38.6) |
| .dll | | | Win32 Dynamic Link Library (generic) (9.5) |
| .exe | | | Win32 Executable (generic) (6.5) |
| .exe | | | Generic Win/DOS Executable (2.9) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2005:01:25 22:01:09+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 2.56 |
| CodeSize: | 4096 |
| InitializedDataSize: | 4096 |
| UninitializedDataSize: | 24576 |
| EntryPoint: | 0x7d50 |
| OSVersion: | 4 |
| ImageVersion: | 1 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows command line |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_CUI |
| Compilation Date: | 25-Jan-2005 21:01:09 |
| Debug artifacts: |
|
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 25-Jan-2005 21:01:09 |
| Pointer to Symbol Table: | 0x00002200 |
| Number of symbols: | 643 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x00006000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x00007000 | 0x00001000 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.38119 |
UPX2 | 0x00008000 | 0x00001000 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.81851 |
ADVAPI32.DLL |
KERNEL32.DLL |
msvcrt.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1792 | "C:\Users\admin\AppData\Local\Temp\ioperm.exe" | C:\Users\admin\AppData\Local\Temp\ioperm.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 4294967295 Modules
| |||||||||||||||
| 2216 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | Skype.exe | ||||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 2 Version: 8.29.0.50 Modules
| |||||||||||||||
| 2240 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | explorer.exe | ||||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.29.0.50 Modules
| |||||||||||||||
| 2636 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | Skype.exe | ||||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.29.0.50 Modules
| |||||||||||||||
| 2920 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=3B9624CC381E72B31B6BD0DBC9831F5B --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=2 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=3B9624CC381E72B31B6BD0DBC9831F5B --renderer-client-id=3 --mojo-platform-channel-handle=1580 /prefetch:1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | — | Skype.exe | |||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.29.0.50 Modules
| |||||||||||||||
| 3272 | C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503} | C:\Windows\system32\DllHost.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
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| 3288 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=CBAE32A3362FAB772CD6EABED0D56FD4 --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=1 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=CBAE32A3362FAB772CD6EABED0D56FD4 --renderer-client-id=4 --mojo-platform-channel-handle=2668 /prefetch:1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | — | Skype.exe | |||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.29.0.50 Modules
| |||||||||||||||
| 3308 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | Skype.exe | ||||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 2 Version: 8.29.0.50 Modules
| |||||||||||||||
| 3336 | C:\Windows\system32\reg.exe QUERY HKCU\Software\Microsoft\Skype /v RestartForUpdate | C:\Windows\system32\reg.exe | — | Skype.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
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| 4092 | C:\Windows\system32\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Skype for Desktop" /t REG_SZ /d "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" /f | C:\Windows\system32\reg.exe | Skype.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| (PID) Process: | (3272) DllHost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication |
| Operation: | write | Name: | Name |
Value: DllHost.exe | |||
| (PID) Process: | (3272) DllHost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows Photo Viewer\Viewer |
| Operation: | write | Name: | MainWndPos |
Value: 6000000034000000A00400008002000000000000 | |||
| (PID) Process: | (4092) reg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | Skype for Desktop |
Value: C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | |||
| (PID) Process: | (2240) Skype.exe | Key: | HKEY_CLASSES_ROOT\skype |
| Operation: | write | Name: | URL Protocol |
Value: | |||
| (PID) Process: | (2240) Skype.exe | Key: | HKEY_CLASSES_ROOT\skype |
| Operation: | write | Name: | |
Value: URL:skype | |||
| (PID) Process: | (2240) Skype.exe | Key: | HKEY_CLASSES_ROOT\skype\shell\open\command |
| Operation: | write | Name: | |
Value: "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" -- "%1" | |||
| (PID) Process: | (2240) Skype.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\12D\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BKOR0BADRX87FLFN1AC2.temp | — | |
MD5:— | SHA256:— | |||
| 2920 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\skylib\slimcore-0-939563850.blog | — | |
MD5:— | SHA256:— | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Skype-Setup.exe | — | |
MD5:— | SHA256:— | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\ecscache.json | text | |
MD5:— | SHA256:— | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b916037c1e115fe0.customDestinations-ms | binary | |
MD5:— | SHA256:— | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Local\Temp\48043a67-1d54-4d41-87ac-2f543d0c5ab7.tmp.ico | image | |
MD5:75A3D7765F2F4F8712775B10E1D18003 | SHA256:28854F198091126B6E3A57FE312A3B77C1074CD0B111AED6F7604A2467F52166 | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Local Storage\leveldb\LOG.old | text | |
MD5:7F39B22308B34B4138A09991EC4D41C5 | SHA256:31C4D714AFBFAB8D23AE08F061F6A5F1E46A26B0AB20795EAC7D2134A55CCEB6 | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Local Storage\leveldb\000020.ldb | binary | |
MD5:293E0F9B607CD2B0CDD018CF9D0CDA80 | SHA256:C5D2E32E6B4104D72815C2DD3FF491DC500A1BBD78FC2E2A44C211D340DE6D9B | |||
| 2216 | Skype.exe | C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txt | text | |
MD5:— | SHA256:— | |||
| 2240 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Local Storage\leveldb\LOG.old~RF16387a.TMP | text | |
MD5:7F39B22308B34B4138A09991EC4D41C5 | SHA256:31C4D714AFBFAB8D23AE08F061F6A5F1E46A26B0AB20795EAC7D2134A55CCEB6 | |||
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2240 | Skype.exe | 92.122.255.249:443 | download.skype.com | GTT Communications Inc. | — | unknown |
2240 | Skype.exe | 13.107.42.23:443 | a.config.skype.com | Microsoft Corporation | US | suspicious |
2240 | Skype.exe | 172.217.18.10:443 | www.googleapis.com | Google Inc. | US | whitelisted |
2240 | Skype.exe | 152.199.19.160:443 | bot-framework.azureedge.net | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
2240 | Skype.exe | 52.114.74.43:443 | browser.pipe.aria.microsoft.com | Microsoft Corporation | NL | whitelisted |
2240 | Skype.exe | 52.233.180.130:443 | avatar.skype.com | Microsoft Corporation | NL | unknown |
2240 | Skype.exe | 52.174.193.75:443 | get.skype.com | Microsoft Corporation | NL | whitelisted |
Domain | IP | Reputation |
|---|---|---|
get.skype.com |
| whitelisted |
a.config.skype.com |
| whitelisted |
download.skype.com |
| whitelisted |
www.googleapis.com |
| whitelisted |
avatar.skype.com |
| whitelisted |
bot-framework.azureedge.net |
| whitelisted |
browser.pipe.aria.microsoft.com |
| whitelisted |
config.edge.skype.com |
| malicious |
Process | Message |
|---|---|
Skype.exe | [2636:2656:0525/195730.399:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
|
Skype.exe | [2636:2656:0525/195730.414:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt
server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload
maximum 128 reports/day
reporter is electron-crash-service
|
Skype.exe | [2636:2656:0525/195730.414:VERBOSE1:crash_service_main.cc(94)] Ready to process crash requests
|
Skype.exe | [2636:2656:0525/195730.414:VERBOSE1:crash_service.cc(145)] window handle is 0004012C
|
Skype.exe | [2636:900:0525/195730.414:VERBOSE1:crash_service.cc(333)] client start. pid = 2240
|
Skype.exe | [2636:2656:0525/195730.414:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt
server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload
maximum 128 reports/day
reporter is electron-crash-service
|
Skype.exe | [2636:900:0525/195732.334:VERBOSE1:crash_service.cc(333)] client start. pid = 2920
|
Skype.exe | [2216:1376:0525/195732.525:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
|
Skype.exe | [2216:1376:0525/195732.526:VERBOSE1:crash_service.cc(300)] pipe name is \\.\pipe\skype-preview Crash Service
dumps at C:\Users\admin\AppData\Local\Temp\skype-preview Crashes
|
Skype.exe | [2216:1376:0525/195732.526:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt
server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload
maximum 128 reports/day
reporter is electron-crash-service
|