agenttesla | 88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d

Analysis

max time kernel
146s
max time network
52s
platform
windows7_x64
resource
win7v20201028
submitted
22/03/2021, 07:40

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General

Target
Documents_00924930493030493.exe
Size 1.7MB
Sample210322-navdazb27e
SHA256 88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d
MD5 d456de679d4dda53b27a787730aa58a2
SHA1 550b5cf678edac214e715314fabee69ab9da00f0
SHA512 ee7ac47de139aa5a482eb9cf6f4013ddefded84e2af0732409228679fbc6b3d207564c0428070ac804d79f43c31ded76bf677db36bf5886be6a2e5760cb02ac7
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.arroweuorpe.com
Port
587
Username
[email protected]
Password
QkeyjAT8

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1932-25-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1932-26-0x0000000000437AAE-mapping.dmp	family_agenttesla
behavioral1/memory/1932-29-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1580	cleanner.exe
1932	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
2008	Documents_00924930493030493.exe
1580	cleanner.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MLdAu = "C:\\Users\\Admin\\AppData\\Roaming\\MLdAu\\MLdAu.exe"	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\cleanner = "C:\\Users\\Admin\\AppData\\Local\\cleanner.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1580 set thread context of 1932	1580	cleanner.exe	33

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2008	Documents_00924930493030493.exe
2008	Documents_00924930493030493.exe
2008	Documents_00924930493030493.exe
1580	cleanner.exe
1580	cleanner.exe
1932	InstallUtil.exe
1932	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	Documents_00924930493030493.exe
Token: SeDebugPrivilege	1580	cleanner.exe
Token: SeDebugPrivilege	1932	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 1988	2008	Documents_00924930493030493.exe	29
PID 2008 wrote to memory of 1988	2008	Documents_00924930493030493.exe	29
PID 2008 wrote to memory of 1988	2008	Documents_00924930493030493.exe	29
PID 2008 wrote to memory of 1988	2008	Documents_00924930493030493.exe	29
PID 1988 wrote to memory of 432	1988	cmd.exe	31
PID 1988 wrote to memory of 432	1988	cmd.exe	31
PID 1988 wrote to memory of 432	1988	cmd.exe	31
PID 1988 wrote to memory of 432	1988	cmd.exe	31
PID 2008 wrote to memory of 1580	2008	Documents_00924930493030493.exe	32
PID 2008 wrote to memory of 1580	2008	Documents_00924930493030493.exe	32
PID 2008 wrote to memory of 1580	2008	Documents_00924930493030493.exe	32
PID 2008 wrote to memory of 1580	2008	Documents_00924930493030493.exe	32
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33
PID 1580 wrote to memory of 1932	1580	cleanner.exe	33

C:\Users\Admin\AppData\Local\Temp\Documents_00924930493030493.exe
"C:\Users\Admin\AppData\Local\Temp\Documents_00924930493030493.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cleanner" /t REG_SZ /d "C:\Users\Admin\AppData\Local\cleanner.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cleanner" /t REG_SZ /d "C:\Users\Admin\AppData\Local\cleanner.exe"
    3⤵
    - Adds Run key to start application
    PID:432
- C:\Users\Admin\AppData\Local\cleanner.exe
  "C:\Users\Admin\AppData\Local\cleanner.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1580
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1580-21-0x0000000000A40000-0x0000000000A4B000-memory.dmp

Download

memory/1580-22-0x00000000021C0000-0x00000000021C1000-memory.dmp

Download

memory/1580-18-0x0000000004A50000-0x0000000004A51000-memory.dmp

Download

memory/1580-15-0x0000000074BA0000-0x000000007528E000-memory.dmp

Download

memory/1580-16-0x00000000000C0000-0x00000000000C1000-memory.dmp

Download

memory/1932-25-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1932-28-0x0000000074BA0000-0x000000007528E000-memory.dmp

Download

memory/1932-29-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1932-31-0x0000000004950000-0x0000000004951000-memory.dmp

Download

memory/2008-10-0x0000000004C21000-0x0000000004C22000-memory.dmp

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memory/2008-7-0x0000000000530000-0x000000000055F000-memory.dmp

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memory/2008-5-0x0000000004C20000-0x0000000004C21000-memory.dmp

Download

memory/2008-2-0x0000000074BA0000-0x000000007528E000-memory.dmp

Download

memory/2008-3-0x0000000000100000-0x0000000000101000-memory.dmp

Download