agenttesla | b9cd3f10b86eb37d59a6d3e1a43edb8c88bdb179bbc749e0920ea699fd255789

General

Target
Shipping documents.exe
Size 440KB
Sample200627-j9pgb1ta2a
SHA256 b9cd3f10b86eb37d59a6d3e1a43edb8c88bdb179bbc749e0920ea699fd255789
MD5 1103ca8cef6febe9926f26aa2986b8f7
SHA1 64933bbb00ed869b3d80eb208701403eac480243
SHA512 98e8c84eaed0ef1f6e4bc297b4d410513f3010d405c514851eff58aa4fcf42ccd05952befac638368fe35dfd43d2657a30f5a842abd380492178c548dcf19b62
MD5 SHA1 SHA512

Score

10^/10

Family

Credentials

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/272-2-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/272-3-0x000000000044763E-mapping.dmp	family_agenttesla
behavioral1/memory/272-4-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/272-5-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Shipping documents.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	Shipping documents.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1156 set thread context of 272	1156	Shipping documents.exe	26

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
1372	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

pid	Process
1860	REG.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	Shipping documents.exe
Token: SeDebugPrivilege	272	Shipping documents.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 1372	1156	Shipping documents.exe	24
PID 1156 wrote to memory of 1372	1156	Shipping documents.exe	24
PID 1156 wrote to memory of 1372	1156	Shipping documents.exe	24
PID 1156 wrote to memory of 1372	1156	Shipping documents.exe	24
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 1156 wrote to memory of 272	1156	Shipping documents.exe	26
PID 272 wrote to memory of 1860	272	Shipping documents.exe	30
PID 272 wrote to memory of 1860	272	Shipping documents.exe	30
PID 272 wrote to memory of 1860	272	Shipping documents.exe	30
PID 272 wrote to memory of 1860	272	Shipping documents.exe	30

C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GoRJnOdgmlSNSv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC35.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1372
- C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:272
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:1860