Analysis
-
max time kernel
254s -
max time network
260s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
26-11-2023 22:31
Static task
static1
Behavioral task
behavioral1
Sample
a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe
Resource
win7-20231023-en
General
-
Target
a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe
-
Size
4.6MB
-
MD5
12c12a8a5c9cb98f98f5e378d56a6141
-
SHA1
827296ef761e92ad2f117c9e92aafd1509ea1c02
-
SHA256
a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf
-
SHA512
1e7b4ea81858bd52718283f62812ae6dc8108db482c0fd4540b1dbdb8840bb2620ab9e07f06d64ac322d9b6ad31e285d0c466076387c204f2ec8fb9638d82df7
-
SSDEEP
49152:5SpYISwcy5m+HlVHd2lXCYE5unMItqEktIKQnRGjmRZlFC2LJfZL7RIFJ1XfJGOB:I7QtTyszkXX14WZB7AhkoeXL
Malware Config
Signatures
-
Detects Arechclient2 RAT 5 IoCs
Arechclient2.
resource yara_rule behavioral1/memory/2732-23-0x0000000000400000-0x00000000004D2000-memory.dmp MALWARE_Win_Arechclient behavioral1/memory/2732-25-0x0000000000400000-0x00000000004D2000-memory.dmp MALWARE_Win_Arechclient behavioral1/memory/2732-29-0x0000000000400000-0x00000000004D2000-memory.dmp MALWARE_Win_Arechclient behavioral1/memory/2732-33-0x0000000000400000-0x00000000004D2000-memory.dmp MALWARE_Win_Arechclient behavioral1/memory/2732-31-0x0000000000400000-0x00000000004D2000-memory.dmp MALWARE_Win_Arechclient -
SectopRAT payload 5 IoCs
resource yara_rule behavioral1/memory/2732-23-0x0000000000400000-0x00000000004D2000-memory.dmp family_sectoprat behavioral1/memory/2732-25-0x0000000000400000-0x00000000004D2000-memory.dmp family_sectoprat behavioral1/memory/2732-29-0x0000000000400000-0x00000000004D2000-memory.dmp family_sectoprat behavioral1/memory/2732-33-0x0000000000400000-0x00000000004D2000-memory.dmp family_sectoprat behavioral1/memory/2732-31-0x0000000000400000-0x00000000004D2000-memory.dmp family_sectoprat -
Loads dropped DLL 1 IoCs
pid Process 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2560 set thread context of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2732 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28 PID 2560 wrote to memory of 2732 2560 a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe"C:\Users\Admin\AppData\Local\Temp\a2e1b415d5540ba0a4646af0ce2396031f55653710e8c37706f32b2f77edecbf.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2560 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2732
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
20KB
MD5c9ff7748d8fcef4cf84a5501e996a641
SHA102867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA2564d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73
-
Filesize
742KB
MD5544cd51a596619b78e9b54b70088307d
SHA14769ddd2dbc1dc44b758964ed0bd231b85880b65
SHA256dfce2d4d06de6452998b3c5b2dc33eaa6db2bd37810d04e3d02dc931887cfddd
SHA512f56d8b81022bb132d40aa78596da39b5c212d13b84b5c7d2c576bbf403924f1d22e750de3b09d1be30aea359f1b72c5043b19685fc9bf06d8040bfee16b17719