Analysis
-
max time kernel
91s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 10:36
Static task
static1
Behavioral task
behavioral1
Sample
BL&CO.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
BL&CO.exe
Resource
win10v2004-20240508-en
General
-
Target
BL&CO.exe
-
Size
721KB
-
MD5
35373ea173fb999636a21ad039ce4951
-
SHA1
d477aa5c029736ca08b927935c901c5f53d454ff
-
SHA256
3cf1272bbb24cd63faf26b69ab0eaeec8ce789a9e59030cfa79e40150d8ae286
-
SHA512
83c8ff6bbede26092b21be38caa110d640ad48130ac5e8f48f84f18ede855e81da43420d49efcc905ddc7e448cb8a2f4ea6d2390edd69a878a305fda9b73b834
-
SSDEEP
12288:mfTeH81jJUDu3+6fov6jk6Jl859MCzjDgC9h0LImZ1tzRI4aP/kR:38MDhyjk6J659M2j8tImVRii
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.azmaplast.com - Port:
587 - Username:
[email protected] - Password:
QAZqaz123@@ - Email To:
[email protected]
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4832 powershell.exe 2244 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation BL&CO.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\boqXv = "C:\\Users\\Admin\\AppData\\Roaming\\boqXv\\boqXv.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 448 set thread context of 2220 448 BL&CO.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4528 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 15 IoCs
pid Process 448 BL&CO.exe 448 BL&CO.exe 448 BL&CO.exe 4832 powershell.exe 2244 powershell.exe 448 BL&CO.exe 448 BL&CO.exe 448 BL&CO.exe 448 BL&CO.exe 448 BL&CO.exe 448 BL&CO.exe 2220 RegSvcs.exe 2220 RegSvcs.exe 4832 powershell.exe 2244 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 448 BL&CO.exe Token: SeDebugPrivilege 2244 powershell.exe Token: SeDebugPrivilege 4832 powershell.exe Token: SeDebugPrivilege 2220 RegSvcs.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 448 wrote to memory of 4832 448 BL&CO.exe 88 PID 448 wrote to memory of 4832 448 BL&CO.exe 88 PID 448 wrote to memory of 4832 448 BL&CO.exe 88 PID 448 wrote to memory of 2244 448 BL&CO.exe 90 PID 448 wrote to memory of 2244 448 BL&CO.exe 90 PID 448 wrote to memory of 2244 448 BL&CO.exe 90 PID 448 wrote to memory of 4528 448 BL&CO.exe 92 PID 448 wrote to memory of 4528 448 BL&CO.exe 92 PID 448 wrote to memory of 4528 448 BL&CO.exe 92 PID 448 wrote to memory of 3824 448 BL&CO.exe 94 PID 448 wrote to memory of 3824 448 BL&CO.exe 94 PID 448 wrote to memory of 3824 448 BL&CO.exe 94 PID 448 wrote to memory of 3564 448 BL&CO.exe 95 PID 448 wrote to memory of 3564 448 BL&CO.exe 95 PID 448 wrote to memory of 3564 448 BL&CO.exe 95 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96 PID 448 wrote to memory of 2220 448 BL&CO.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\BL&CO.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4832
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ClBZCJCLlsf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2244
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ClBZCJCLlsf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp925D.tmp"2⤵
- Creates scheduled task(s)
PID:4528
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:3824
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:3564
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2220
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD533b19d75aa77114216dbc23f43b195e3
SHA136a6c3975e619e0c5232aa4f5b7dc1fec9525535
SHA256b23ced31b855e5a39c94afa1f9d55b023b8c40d4dc62143e0539c6916c12c9d2
SHA512676fa2fd34878b75e5899197fe6826bb5604541aa468804bc9835bd3acabed2e6759878a8f1358955413818a51456816e90f149133828575a416c2a74fc7d821
-
Filesize
18KB
MD58c84fb26baf017985e64cad29e77750b
SHA1120f54b03da53325077c1062030f4e2ca1c2e94c
SHA256e9a2712f59cc6613177a3e95311cbe73fdc68f4f43366e25af1b804df6777be1
SHA5128ed612c8cc2258dba973bd4fb5367de484971fc63d464a2f7b75a7ca23f6871391b9e1b289c8163d7d33edb8448ca79551d019c1419af8263cb46abc2795f0c0
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD534feadd87496e6685689d39651c2f2b3
SHA1318516e5afa4e883087e14dedf6db638e43824c6
SHA2562fa9212e4b1339228e8485f3c09012db8dff0fe6f75a666e8e5d30d532257ddf
SHA512e4441594c6ff2f6242978206d30831604a6a9770e3fdfc915189a187e438af4b8a2ea0d11d1661dad0e4588353e47bbbe5424dceca856ffe065235901d482219