Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
26-04-2024 12:46
Static task
static1
Behavioral task
behavioral1
Sample
Packing List PDF.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Packing List PDF.exe
Resource
win10v2004-20240226-en
General
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Target
Packing List 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:
Packing List PDF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe" Packing List 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:
Packing List PDF.exedescription pid process target process PID 1228 set thread context of 2788 1228 Packing List PDF.exe Packing List 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:
Packing List PDF.exePacking List PDF.exepowershell.exepowershell.exepid process 1228 Packing List PDF.exe 1228 Packing List PDF.exe 1228 Packing List PDF.exe 2788 Packing List PDF.exe 2788 Packing List PDF.exe 2968 powershell.exe 2556 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Packing List PDF.exePacking List PDF.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 1228 Packing List PDF.exe Token: SeDebugPrivilege 2788 Packing List PDF.exe Token: SeDebugPrivilege 2968 powershell.exe Token: SeDebugPrivilege 2556 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Packing List PDF.exepid process 2788 Packing List PDF.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
Packing List PDF.exedescription pid process target process PID 1228 wrote to memory of 2968 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2968 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2968 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2968 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2556 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2556 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2556 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2556 1228 Packing List PDF.exe powershell.exe PID 1228 wrote to memory of 2648 1228 Packing List PDF.exe schtasks.exe PID 1228 wrote to memory of 2648 1228 Packing List PDF.exe schtasks.exe PID 1228 wrote to memory of 2648 1228 Packing List PDF.exe schtasks.exe PID 1228 wrote to memory of 2648 1228 Packing List PDF.exe schtasks.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe PID 1228 wrote to memory of 2788 1228 Packing List PDF.exe Packing List PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\Packing List PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp42AB.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"C:\Users\Admin\AppData\Local\Temp\Packing List PDF.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
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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C:\Users\Admin\AppData\Local\Temp\tmp42AB.tmpFilesize
1KB
MD535758dbe2ec4d4f443afa00278d747f8
SHA18d6efc2c4b97de9b62e58609050d537a57eefced
SHA256d5fdcf3eed762e4637a215e88b2f723d671e7554ebc51aaf453a3304d6d78a09
SHA51269beb20ca06dbe0dc0d65e85a0f58514bb889607b32751e50c6e453bf320a37f4ff329ba8bd73e01547ebfa5e67ce4a7652d293c05c4a0c5e347fe539672ecf8
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\8GWXL9X4LPFI872490JQ.tempFilesize
7KB
MD5e8ffd2722073a158839b70f1ff44ecce
SHA10ccf23a28a10d04bd9c756aee0f96a1be03a026d
SHA2561ac17af9884a70494700ad41d6c7621cb2aec7a572714dc49a0c09e2c051546a
SHA51263e1c48aae1f4bfae84cd8bffc5019574c22a1890b8178597b54a133c3c1cc7464d1236ada95ae606bdb8c335785ab67d3a63bc89c4579fb9be1a4acc25195bf
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memory/1228-31-0x0000000074600000-0x0000000074CEE000-memory.dmpFilesize
6.9MB
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memory/1228-1-0x0000000074600000-0x0000000074CEE000-memory.dmpFilesize
6.9MB
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memory/1228-2-0x0000000004380000-0x00000000043C0000-memory.dmpFilesize
256KB
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memory/1228-3-0x0000000000490000-0x00000000004B0000-memory.dmpFilesize
128KB
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memory/1228-4-0x0000000000500000-0x0000000000514000-memory.dmpFilesize
80KB
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memory/1228-5-0x0000000005A80000-0x0000000005B04000-memory.dmpFilesize
528KB
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memory/1228-0-0x0000000000E30000-0x0000000000F04000-memory.dmpFilesize
848KB
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memory/2788-30-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-27-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-28-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2788-22-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-24-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-20-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2788-19-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB