Analysis
- max time kernel
42s - max time network
51s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
14/06/2024, 01:48
Static task
static1
Behavioral task
behavioral1
Sample
RFQ..exe
Resource
win7-20240611-en
General
- Target RFQ..exe
- Size 913KB
- Sample240614-b8llmsvbjp
- SHA256 18e93e86d45bf8c393d71e183bfcd26ca971afea3e868169006d69038ed626be
- MD5 4fe15698d9d68f6f1f5c5cde44bce00b
- SHA1 578c70833725294570d063770f695c00b8ae35b6
- SHA512 c7a1424387ca00928b24e7ea2057a503ab6e57fc435010d593b60a5ba42e4ce8828f3068b4e46712a1c55faf2adfe8093ff8c4025ccc61dccd23b8bfc9964185
- SSDEEP 24576:HyC5z66SwacZ4rBjBqDhX1AnGbrm+PUyA3:H3R3zaM4wDfAnGbpA3
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.skitz.com.ng
-
Port
21
-
Username
-
Password
Kosyano1@
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 1872 powershell.exe 1936 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation RFQ..exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.ipify.org 7 ip-api.com - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2060 set thread context of 2904 2060 RFQ..exe 91 - 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 2172 schtasks.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2060 RFQ..exe 2060 RFQ..exe 1872 powershell.exe 1936 powershell.exe 2060 RFQ..exe 2904 RFQ..exe 2904 RFQ..exe 1872 powershell.exe 1936 powershell.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2060 RFQ..exe Token: SeDebugPrivilege 1872 powershell.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 2904 RFQ..exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2904 RFQ..exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2060 wrote to memory of 1872 2060 RFQ..exe 85 PID 2060 wrote to memory of 1872 2060 RFQ..exe 85 PID 2060 wrote to memory of 1872 2060 RFQ..exe 85 PID 2060 wrote to memory of 1936 2060 RFQ..exe 87 PID 2060 wrote to memory of 1936 2060 RFQ..exe 87 PID 2060 wrote to memory of 1936 2060 RFQ..exe 87 PID 2060 wrote to memory of 2172 2060 RFQ..exe 89 PID 2060 wrote to memory of 2172 2060 RFQ..exe 89 PID 2060 wrote to memory of 2172 2060 RFQ..exe 89 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91 PID 2060 wrote to memory of 2904 2060 RFQ..exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ..exe"C:\Users\Admin\AppData\Local\Temp\RFQ..exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2060 -
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\RFQ..exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1872
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qClpySdresjj.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1936
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qClpySdresjj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8666.tmp"2⤵
- Creates scheduled task(s)
PID:2172
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C:\Users\Admin\AppData\Local\Temp\RFQ..exe"C:\Users\Admin\AppData\Local\Temp\RFQ..exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2904
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cq3efuj0.eeu.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp8666.tmp
- Size 1KB
- SHA256 7ecf9e7d2cb44b2805369e14c3cac1931b41b8474a5d70b0d27d7be09109af4a
- MD5 fedc44a1579cb3bd1394172af4c3e358
- SHA1 d834194a2fc3410a48836bd24b341262a45080c9
- SHA512 f746c6478c765a83625e0f3d6d08f6bf79d0d529867ed444c6ec9f420703aea9281a6f64e459007e1aab9821564e86f9ed8cce13cc3115d4172a594af19d3aa6
- MD5 SHA1 SHA512