Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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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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-1-5-21-2297530677-1229052932-2803917579-1000\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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Commercial Invoice PDF.exedescription pid process target process PID 2412 set thread context of 2572 2412 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 7 IoCs
Processes:
Commercial Invoice PDF.exeCommercial Invoice PDF.exepowershell.exepowershell.exepid process 2412 Commercial Invoice PDF.exe 2412 Commercial Invoice PDF.exe 2412 Commercial Invoice PDF.exe 2572 Commercial Invoice PDF.exe 2572 Commercial Invoice PDF.exe 2604 powershell.exe 2660 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Commercial Invoice PDF.exeCommercial Invoice PDF.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2412 Commercial Invoice PDF.exe Token: SeDebugPrivilege 2572 Commercial Invoice PDF.exe Token: SeDebugPrivilege 2604 powershell.exe Token: SeDebugPrivilege 2660 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Commercial Invoice PDF.exepid process 2572 Commercial Invoice PDF.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
Commercial Invoice PDF.exedescription pid process target process PID 2412 wrote to memory of 2604 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2604 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2604 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2604 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2660 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2660 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2660 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2660 2412 Commercial Invoice PDF.exe powershell.exe PID 2412 wrote to memory of 2568 2412 Commercial Invoice PDF.exe schtasks.exe PID 2412 wrote to memory of 2568 2412 Commercial Invoice PDF.exe schtasks.exe PID 2412 wrote to memory of 2568 2412 Commercial Invoice PDF.exe schtasks.exe PID 2412 wrote to memory of 2568 2412 Commercial Invoice PDF.exe schtasks.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 Commercial Invoice PDF.exe Commercial Invoice PDF.exe PID 2412 wrote to memory of 2572 2412 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⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412 -
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:2604 -
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:2660 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4116.tmp"2⤵
- Creates scheduled task(s)
PID:2568 -
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:2572
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
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5a351be93d764fb87c712ab5921235f3d
SHA1a2ba73db945c05802db324a9f4a5f0384a26feab
SHA256a6bda8df90a60518ad4f70efdf00b1c47b426d9fe2535a578982ba743a6f902d
SHA512fb6d6b771dbf71aa8bc414e926b3797e67f18b2a8d2047437ef0f5c3e5c802e1b4a76fda4f9573eb149a31d9e81a860fd7d71b3757e66d3b76b8fc0d9f1a6023
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\73VCM2F573FJNH1IH2EE.temp
Filesize7KB
MD5762b0abad3217110d05435e7ed0f9dd5
SHA1785efb781402ccedaa86f487571301cb2938b286
SHA25659585a58f13c4c7c306bd96c5dde3ffa093fec71dcdc1dc1c624c9c9875061e3
SHA512fceb7bf6ab203491484c9b789c9eb4f032fb6a6c359d73d0db49fa78be10e05b4032e083bcc8033b65fd696195c4be3bb5973804d21823339b8663e4a3b93412