Analysis
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max time kernel
125s -
max time network
130s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
19-10-2021 15:12
Static task
static1
Behavioral task
behavioral1
Sample
PO # 11002021.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
PO # 11002021.exe
Resource
win10-en-20210920
General
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Target
PO # 11002021.exe
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Size
700KB
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MD5
e9901eec1af843e9546a659866270f6e
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SHA1
57b6cccf4084b0a4aff6d236eb6a30df4fe8029f
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SHA256
20307784e2521eb5d902498d8c893d7c884e518c38d8659780019ad08fbd341b
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SHA512
b98b4937c9c94ebbe91f14e758a7b43d7999047c30840ca802ae60ec18fad4479c9bc21a1a375280119969ebc229065a85f17052804aff96b1246dbacd21959e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.aldhiyafainteriors.com - Port:
587 - Username:
[email protected] - Password:
dhiyafa@987
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/3504-128-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/3504-129-0x00000000004376CE-mapping.dmp family_agenttesla behavioral2/memory/3504-134-0x0000000005470000-0x000000000596E000-memory.dmp family_agenttesla behavioral2/memory/3504-139-0x0000000005470000-0x000000000596E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PO # 11002021.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PO # 11002021.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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
PO # 11002021.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PO # 11002021.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\DnDcR = "C:\\Users\\Admin\\AppData\\Roaming\\DnDcR\\DnDcR.exe" PO # 11002021.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO # 11002021.exedescription pid process target process PID 1812 set thread context of 3504 1812 PO # 11002021.exe PO # 11002021.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 3 IoCs
Processes:
PO # 11002021.exePO # 11002021.exepid process 1812 PO # 11002021.exe 3504 PO # 11002021.exe 3504 PO # 11002021.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO # 11002021.exePO # 11002021.exedescription pid process Token: SeDebugPrivilege 1812 PO # 11002021.exe Token: SeDebugPrivilege 3504 PO # 11002021.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
PO # 11002021.exedescription pid process target process PID 1812 wrote to memory of 3512 1812 PO # 11002021.exe schtasks.exe PID 1812 wrote to memory of 3512 1812 PO # 11002021.exe schtasks.exe PID 1812 wrote to memory of 3512 1812 PO # 11002021.exe schtasks.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe PID 1812 wrote to memory of 3504 1812 PO # 11002021.exe PO # 11002021.exe -
outlook_office_path 1 IoCs
Processes:
PO # 11002021.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe -
outlook_win_path 1 IoCs
Processes:
PO # 11002021.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe"C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ucluvjDNoCBwJD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3881.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp3881.tmpMD5
c318beb7963c1b9136c0f0190fc9186d
SHA11f6fd3fe219755de3a5a69ef0eb3f8f4280034e0
SHA256046432a8376a5097c4925e891d16bc2a017b3837a79390722aa8897bee3950b8
SHA5120095ea5643be1987a18e19aebe7b74cfcabb6b46ac1d40f61b33e9d76eeb13eb72becbaf0de0c63a55a3d9b65c56f636e2a843a2d10ddd7ec3d8aff9bfc57e36
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memory/1812-124-0x0000000008F80000-0x0000000008FF5000-memory.dmpFilesize
468KB
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memory/1812-121-0x00000000058A0000-0x00000000058A1000-memory.dmpFilesize
4KB
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memory/1812-125-0x000000000B740000-0x000000000B778000-memory.dmpFilesize
224KB
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memory/1812-120-0x0000000005640000-0x0000000005641000-memory.dmpFilesize
4KB
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memory/1812-115-0x0000000000CD0000-0x0000000000CD1000-memory.dmpFilesize
4KB
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memory/1812-122-0x0000000005600000-0x0000000005AFE000-memory.dmpFilesize
5.0MB
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memory/1812-123-0x0000000008C70000-0x0000000008C7E000-memory.dmpFilesize
56KB
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memory/1812-117-0x0000000005560000-0x0000000005561000-memory.dmpFilesize
4KB
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memory/1812-119-0x00000000056A0000-0x00000000056A1000-memory.dmpFilesize
4KB
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memory/1812-118-0x0000000005B00000-0x0000000005B01000-memory.dmpFilesize
4KB
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memory/3504-128-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/3504-129-0x00000000004376CE-mapping.dmp
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memory/3504-134-0x0000000005470000-0x000000000596E000-memory.dmpFilesize
5.0MB
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memory/3504-135-0x00000000055C0000-0x00000000055C1000-memory.dmpFilesize
4KB
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memory/3504-136-0x0000000006160000-0x0000000006161000-memory.dmpFilesize
4KB
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memory/3504-139-0x0000000005470000-0x000000000596E000-memory.dmpFilesize
5.0MB
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memory/3512-126-0x0000000000000000-mapping.dmp