| File name: | sample.dll |
| Full analysis: | https://app.any.run/tasks/0c68143e-5978-4185-ac84-d5a84483dc3f |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | May 21, 2020, 16:22:59 |
| OS: | Windows 10 Professional (build: 16299, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (DLL) (GUI) Intel 80386, for MS Windows |
| MD5: | 992BDE46A670349BBE2D351876BBA652 |
| SHA1: | 30E85E994DE22E64268D952AA40A22E5F9BEC00C |
| SHA256: | 14F1826E6B3C3F6EBE0495DB769ECBE24E642437BCEC08FBC295D1F3CFCBDC8C |
| SSDEEP: | 6144:dHX4OPyl+j33poElVveZg2fljDdG8pjaRJd01jodHqJhf3RPqVu3q9Y+VWLS:dHXM635oExcxHfN9j3RiVI+x |
MALICIOUS
No malicious indicators.SUSPICIOUS
Creates files in the Windows directory
- WmiApSrv.exe (PID: 5236)
Executed as Windows Service
- WmiApSrv.exe (PID: 4448)
- WmiApSrv.exe (PID: 4684)
- WmiApSrv.exe (PID: 5236)
Executes scripts
- rundll32.exe (PID: 1208)
Removes files from Windows directory
- WmiApSrv.exe (PID: 5236)
INFO
Loads main object executable
- rundll32.exe (PID: 1208)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:05:21 10:56:03+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 9 |
| CodeSize: | 241664 |
| InitializedDataSize: | 184320 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1a0f1 |
| OSVersion: | 5 |
| ImageVersion: | - |
| SubsystemVersion: | 5 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 7.1.3.147 |
| ProductVersionNumber: | 7.1.3.147 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| CompanyName: | Engine TreeC Feet |
| ProductName: | Often What |
| FileVersion: | 7.1.3.147 |
| ProductVersion: | 7.1.3.147 |
| LegalCopyright: | Copyright © Engine TreeC Feet 1997-2016 |
| OriginalFileName: | Mes.dll |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 21-May-2020 08:56:03 |
| Detected languages: |
|
| Debug artifacts: |
|
| CompanyName: | Engine TreeC Feet |
| ProductName: | Often What |
| FileVersion: | 7.1.3.147 |
| ProductVersion: | 7.1.3.147 |
| LegalCopyright: | Copyright © Engine TreeC Feet 1997-2016 |
| OriginalFilename: | Mes.dll |
DOS Header
| 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: | 0x000000E8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 21-May-2020 08:56:03 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x0003AF9B | 0x0003B000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.68571 |
.rdata | 0x0003C000 | 0x000246D6 | 0x00024800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.78491 |
.data | 0x00061000 | 0x000FBFE8 | 0x00004200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.00496 |
.rsrc | 0x0015D000 | 0x0000046C | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.64143 |
.reloc | 0x0015E000 | 0x00003FB4 | 0x00004000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 4.65966 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.42201 | 624 | Latin 1 / Western European | English - United States | RT_VERSION |
2 | 4.79597 | 346 | Latin 1 / Western European | English - United States | RT_MANIFEST |
Imports
KERNEL32.dll |
Exports
Title | Ordinal | Address |
|---|---|---|
DllRegisterServer | 1 | 0x00039FA0 |
DllUnregisterServer | 2 | 0x0002DCD0 |
Fishamong | 3 | 0x0002DC50 |
Surprisecard | 4 | 0x0002DD30 |
Total processes
115
Monitored processes
5
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1208 | "C:\Windows\System32\rundll32.exe" C:\Users\admin\AppData\Local\Temp\sample.dll.exe,DllRegisterServer | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2712 | wscript.exe //E:jscript "C:\Users\Public\SAvWojdYq.ctZPt | C:\Windows\System32\wscript.exe | — | rundll32.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft ® Windows Based Script Host Exit code: 0 Version: 5.812.10240.16384 Modules
| |||||||||||||||
| 4448 | C:\WINDOWS\system32\wbem\WmiApSrv.exe | C:\WINDOWS\system32\wbem\WmiApSrv.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: WMI Performance Reverse Adapter Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4684 | C:\WINDOWS\system32\wbem\WmiApSrv.exe | C:\WINDOWS\system32\wbem\WmiApSrv.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: WMI Performance Reverse Adapter Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5236 | C:\WINDOWS\system32\wbem\WmiApSrv.exe | C:\WINDOWS\system32\wbem\WmiApSrv.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: WMI Performance Reverse Adapter Exit code: 0 Version: 10.0.16299.15 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
303
Read events
275
Write events
22
Delete events
6
Modification events
| (PID) Process: | (4684) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\PROVIDERS\Performance |
| Operation: | write | Name: | Performance Refreshed |
Value: 0 | |||
| (PID) Process: | (4448) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\PROVIDERS\Performance |
| Operation: | write | Name: | Performance Refreshed |
Value: 0 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\PROVIDERS\Performance |
| Operation: | write | Name: | Performance Refreshed |
Value: 0 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WmiApRpl\Performance |
| Operation: | delete value | Name: | First Counter |
Value: 14056 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WmiApRpl\Performance |
| Operation: | delete value | Name: | First Help |
Value: 14057 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WmiApRpl\Performance |
| Operation: | delete value | Name: | Last Counter |
Value: 14222 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WmiApRpl\Performance |
| Operation: | delete value | Name: | Last Help |
Value: 14223 | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\WmiApRpl\Performance |
| Operation: | write | Name: | PerfIniFile |
Value: WmiApRpl.ini | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib |
| Operation: | write | Name: | Updating |
Value: WmiApRpl | |||
| (PID) Process: | (5236) WmiApSrv.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib |
| Operation: | write | Name: | Last Counter |
Value: 14390 | |||
Executable files
0
Suspicious files
3
Text files
5
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\wbem\Performance\WmiApRpl_new.h | — | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\wbem\Performance\WmiApRpl_new.ini | — | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\PerfStringBackup.TMP | — | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\perfc009.dat | binary | |
MD5:— | SHA256:— | |||
| 1208 | rundll32.exe | C:\Users\Public\SAvWojdYq.ctZPt | text | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\perfh009.dat | binary | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\PerfStringBackup.INI | binary | |
MD5:— | SHA256:— | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\inf\WmiApRpl\WmiApRpl.ini | text | |
MD5:FFDEEA82BA4A5A65585103DD2A922DFE | SHA256:C20B11DFF802AA472265F4E9F330244EC4ACA81B0009F6EFCB2CF8A36086F390 | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\wbem\Performance\WmiApRpl.ini | text | |
MD5:FFDEEA82BA4A5A65585103DD2A922DFE | SHA256:C20B11DFF802AA472265F4E9F330244EC4ACA81B0009F6EFCB2CF8A36086F390 | |||
| 5236 | WmiApSrv.exe | C:\WINDOWS\system32\wbem\Performance\WmiApRpl.h | text | |
MD5:B133A676D139032A27DE3D9619E70091 | SHA256:AE2B6236D3EEB4822835714AE9444E5DCD21BC60F7A909F2962C43BC743C7B15 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
14
DNS requests
12
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEAi4elAbvpzaLRZNPjlRv1U%3D | US | der | 1.47 Kb | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 40.90.137.125:443 | — | Microsoft Corporation | US | unknown |
3596 | SDXHelper.exe | 52.109.76.40:443 | mrodevicemgr.officeapps.live.com | Microsoft Corporation | IE | suspicious |
— | — | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
3596 | SDXHelper.exe | 23.202.52.67:443 | officecdn.microsoft.com | Akamai Technologies, Inc. | US | unknown |
— | — | 172.217.16.174:80 | google.com | Google Inc. | US | whitelisted |
696 | svchost.exe | 40.69.221.239:443 | geo-prod.do.dsp.mp.microsoft.com | Microsoft Corporation | IE | unknown |
696 | svchost.exe | 23.37.53.189:443 | kv601.prod.do.dsp.mp.microsoft.com | Akamai Technologies, Inc. | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
self.events.data.microsoft.com |
| whitelisted |
mrodevicemgr.officeapps.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
officecdn.microsoft.com |
| whitelisted |
google.com |
| malicious |
nexusrules.officeapps.live.com |
| whitelisted |
geo-prod.do.dsp.mp.microsoft.com |
| whitelisted |
config.edge.skype.com |
| malicious |
kv601.prod.do.dsp.mp.microsoft.com |
| whitelisted |