| File name: | 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe |
| Full analysis: | https://app.any.run/tasks/f427292d-2ea9-4c50-97d6-1e8df9c48ea4 |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | August 12, 2022, 14:36:11 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 1265A8DC0970AB09C4E8108563238911 |
| SHA1: | B4FB4E12F34F3FC6C3FE7FD6CB764FEA6F0823E1 |
| SHA256: | 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA5A83A644FD36AC0F055 |
| SSDEEP: | 24576:WbLpW8ubIBBeYOTYNZg8cljdR0eNWQC3n1asUfq+8Lj:WbLpW8u8BwYOTYOlg8eKfJm |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
| AssemblyVersion: | 1.0.0.50 |
|---|---|
| ProductVersion: | 1.0.0.50 |
| ProductName: | Upgrade |
| OriginalFileName: | Upgrade.exe |
| LegalTrademarks: | Registered trademarks and service marks are the property of their respective owners |
| LegalCopyright: | © 2015 AO Kaspersky Lab. All Rights Reserved. |
| InternalName: | Upgrade.exe |
| FileVersion: | 1.0.0.50 |
| FileDescription: | Upgrade |
| CompanyName: | AO Kaspersky Lab |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.50 |
| FileVersionNumber: | 1.0.0.50 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x10a63e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 149504 |
| CodeSize: | 1083392 |
| LinkerVersion: | 80 |
| PEType: | PE32 |
| TimeStamp: | 2085:04:04 15:41:20+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 27-Feb-1949 07:13:04 |
| Detected languages: |
|
| CompanyName: | AO Kaspersky Lab |
| FileDescription: | Upgrade |
| FileVersion: | 1.0.0.50 |
| InternalName: | Upgrade.exe |
| LegalCopyright: | © 2015 AO Kaspersky Lab. All Rights Reserved. |
| LegalTrademarks: | Registered trademarks and service marks are the property of their respective owners |
| OriginalFilename: | Upgrade.exe |
| ProductName: | Upgrade |
| ProductVersion: | 1.0.0.50 |
| Assembly Version: | 1.0.0.50 |
| 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: | 27-Feb-1949 07:13:04 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x00108644 | 0x00108800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.55165 |
.rsrc | 0x0010C000 | 0x000245D0 | 0x00024600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.79375 |
.reloc | 0x00132000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 3.68804 | 38056 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 3.70148 | 16936 | UNKNOWN | UNKNOWN | RT_ICON |
4 | 3.4362 | 9640 | UNKNOWN | UNKNOWN | RT_ICON |
5 | 3.48916 | 4264 | UNKNOWN | UNKNOWN | RT_ICON |
6 | 3.37803 | 2440 | UNKNOWN | UNKNOWN | RT_ICON |
7 | 2.47595 | 1128 | UNKNOWN | UNKNOWN | RT_ICON |
8 | 2.51649 | 308 | UNKNOWN | English - United States | RT_CURSOR |
9 | 2.31114 | 308 | UNKNOWN | English - United States | RT_CURSOR |
10 | 2.34004 | 308 | UNKNOWN | English - United States | RT_CURSOR |
mscoree.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 924 | "C:\Users\admin\AppData\Local\Temp\1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe" | C:\Users\admin\AppData\Local\Temp\1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe | — | Explorer.EXE | |||||||||||
User: admin Company: AO Kaspersky Lab Integrity Level: MEDIUM Description: Upgrade Exit code: 0 Version: 1.0.0.50 Modules
| |||||||||||||||
| 3372 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" YGjdg6652NrC6d9u60euJP3nyc8vPDOgXeh4CAVFU3YQ40CGmGSqD60UGue4HK2cFTTPT35oGWIc4C6k6vpLyiglI9K06NJq8gMKxc2IKrR4L4L40856NFkIJ59iII85Gym415Fp6c2p58eTCu8Lyov3kH3A5CbR3vd4938XtphAM0Q5I6JQSuMpTUj2oU0k53548L2i610DYMJx6DG4OqNRH4MWC8N20W1cXQ4OTFC21bG10HUr2OaBSqYsRSY1NyagUBuce792jG8WvQa0q60ATBAXRTG3J519qSItK80V8NTB94M1tvtyK2cxSyTJFNpg52HrE71uLFp5fg59BfiqHAfJ0Xy3sXg0X0bGXO364o39Y05i517m7Qmja7Sg9Y1y6UG0sp684TXgJT25Sxa07Hca3qk0JLBFEbeOTF61L8OAS9mlWvtRlSGv59S1Om4X81EOI04148rXOCad238xY36KU9we07o9EQ9KX04M9I5a16oDwh45JTIDHLUMTCW92PcB6RTUF8QIK61REt8Vr64745BwQWu233PpAVIGNrsIcq5ahQ74RA0S88RF3d220IQP00BV89GLX9O4FL6MXPp8KYIBmxR48PX3t9S1xIQD7S5LfGYOFSePPSD4jCQeNTMGT4Lrf5hHTiVMW0qEh495X8AqvLCBfJuD6KMU2CCe7gDaI1S4CHY01O3lE1IwA2He3NPMDUDeI1RUhNTFYJVrA80053xnDGnbrWX0VTHQQHq0O6l1hukydaykoHXvDUclVDxWQD6R2F404frO0bpI50u6jYI8YRAX7Fl99vI347M78DqLeo7JwVp83wBB93R1kEtt62JNKqFM4fFA5VcXI2Pr0cnpHbDW5EJ16LHptpU32Y7KmlrWQ0b0TmGTPYQuMYd0BCmHOubKK0ackP0JBOB367juUJtP1D0XRVhC8J03MM343EiQS98TcBaOWlVyYWU025OKd0PmABD5viWOu3T19BcDFA6W32KG4XELdO25yK081LhA0 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.0.30319.34209 built by: FX452RTMGDR Modules
| |||||||||||||||
| (PID) Process: | (924) 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe | Key: | HKEY_CLASSES_ROOT\CID\{A3358E75-826A3-31A5-2C1E-14A484D53571}\164395BC |
| Operation: | write | Name: | 2 |
Value: 156133079166053181018189100128017101169100010023 | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3372) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3372 | RegAsm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506 | binary | |
MD5:— | SHA256:— | |||
| 3372 | RegAsm.exe | C:\Users\admin\AppData\Local\Temp\Tar6890.tmp | cat | |
MD5:— | SHA256:— | |||
| 924 | 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe | C:\ProgramData\Isolated Storage\164395BC\44538E74 | binary | |
MD5:— | SHA256:— | |||
| 3372 | RegAsm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 | compressed | |
MD5:— | SHA256:— | |||
| 3372 | RegAsm.exe | C:\Users\admin\AppData\Local\Temp\Cab688F.tmp | compressed | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3372 | RegAsm.exe | GET | 200 | 8.241.121.126:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?b18ed6871078f738 | US | compressed | 60.2 Kb | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3372 | RegAsm.exe | 142.250.185.78:443 | www.youtube.com | Google Inc. | US | whitelisted |
3372 | RegAsm.exe | 172.217.16.142:443 | www.youtube.com | Google Inc. | US | whitelisted |
3372 | RegAsm.exe | 142.250.186.129:443 | doc-0k-bk-docs.googleusercontent.com | Google Inc. | US | whitelisted |
3372 | RegAsm.exe | 45.88.79.224:54 | — | — | — | malicious |
3372 | RegAsm.exe | 8.241.121.126:80 | ctldl.windowsupdate.com | Level 3 Communications, Inc. | US | suspicious |
Domain | IP | Reputation |
|---|---|---|
www.youtube.com |
| whitelisted |
drive.google.com |
| shared |
doc-0k-bk-docs.googleusercontent.com |
| shared |
ctldl.windowsupdate.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
3372 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server) |
3372 | RegAsm.exe | A Network Trojan was detected | ET TROJAN Generic AsyncRAT Style SSL Cert |