Analysis
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max time kernel
63s -
max time network
55s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
28-04-2024 01:14
Static task
static1
Behavioral task
behavioral1
Sample
Commercial Invoice PDF.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Commercial Invoice PDF.exe
Resource
win10v2004-20240419-en
General
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Target
Commercial Invoice PDF.exe
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Size
822KB
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MD5
5a12438b3b4c926c12a9376c7bf13426
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SHA1
c3185c6a5e5f07a5befbe4af7131d05634f5d1a3
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SHA256
1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
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SHA512
16c1e0e18eb8b3345b8b05443b782cb1dd35492ac986811c39f3cdce8dfe85b003aba029ffca0e38aa33c951d0d08281825152b0e239471eac3de18ac67864d0
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SSDEEP
12288:tEqnHvjNIrpf9rN/mc/CaBmIwsyaPSIir97G6NLOZCGKEgbjuPBB5uO12rq:txPjKr5BNDWVxcSIiRG6atlB5N
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.fascia-arch.com - Port:
587 - Username:
[email protected] - Password:
HERbertstown1987 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Commercial Invoice PDF.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation Commercial Invoice PDF.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Commercial Invoice PDF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe" Commercial Invoice PDF.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Commercial Invoice PDF.exedescription pid process target process PID 1216 set thread context of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
Commercial Invoice PDF.exepowershell.exepowershell.exeCommercial Invoice PDF.exepid process 1216 Commercial Invoice PDF.exe 1216 Commercial Invoice PDF.exe 4184 powershell.exe 1492 powershell.exe 1216 Commercial Invoice PDF.exe 1216 Commercial Invoice PDF.exe 4184 powershell.exe 1216 Commercial Invoice PDF.exe 1492 powershell.exe 2036 Commercial Invoice PDF.exe 2036 Commercial Invoice PDF.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Commercial Invoice PDF.exepowershell.exepowershell.exeCommercial Invoice PDF.exedescription pid process Token: SeDebugPrivilege 1216 Commercial Invoice PDF.exe Token: SeDebugPrivilege 4184 powershell.exe Token: SeDebugPrivilege 1492 powershell.exe Token: SeDebugPrivilege 2036 Commercial Invoice PDF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Commercial Invoice PDF.exepid process 2036 Commercial Invoice PDF.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
Commercial Invoice PDF.exedescription pid process target process PID 1216 wrote to memory of 4184 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 4184 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 4184 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 1492 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 1492 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 1492 1216 Commercial Invoice PDF.exe powershell.exe PID 1216 wrote to memory of 2200 1216 Commercial Invoice PDF.exe schtasks.exe PID 1216 wrote to memory of 2200 1216 Commercial Invoice PDF.exe schtasks.exe PID 1216 wrote to memory of 2200 1216 Commercial Invoice PDF.exe schtasks.exe PID 1216 wrote to memory of 4032 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 4032 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 4032 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 1216 wrote to memory of 2036 1216 Commercial Invoice PDF.exe Commercial Invoice PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216 -
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\Commercial Invoice PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4184 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CmxzrHBB.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1492 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64E4.tmp"2⤵
- Creates scheduled task(s)
PID:2200 -
C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"2⤵PID:4032
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C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2036
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD50c983edd3346f159fe0c793e1fd433ed
SHA13240bc2e9c3ca6e543ac1e665b8e8b17183ed998
SHA256f54a364928a60fa1829ce66c565454f74a4d4796028b914de1d6c0ade3af07de
SHA512ca38f5bfc02bb43b19304518a0d8b96497117968fd6f92365f17bed56d49965c8ffc493b6565384fdc132f9ef2469cf9b910d55e479b95056b0e6c7134de4110
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5e7e4de112faf4ec2130f5a2b198c6724
SHA11052a51fb995f41373d0749d259dd55c7e4f083a
SHA256e3d76ce643d9a814531a4ff079ffacd97b430598036bcc7de359de3fe29806d4
SHA512e6c9173142e50237111b6c467a82f2c093c20cf114ac0fcde566f627f3ef7b265298de56adadfb5b7a6d45e7e35c4ea4b4d1dda1394261c2ed72be174faaa80b