agenttesla | 88d6342ccae8c8af4195bcb8c8d41230821ff2d1d5d559e074e240d903af840d

Analysis

max time kernel
146s
max time network
112s
platform
windows10_x64
resource
win10v20201028
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 2 IoCs

resource	yara_rule
behavioral2/memory/3736-31-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3736-32-0x0000000000437AAE-mapping.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
4080	cleanner.exe
3736	InstallUtil.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-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\MLdAu = "C:\\Users\\Admin\\AppData\\Roaming\\MLdAu\\MLdAu.exe"	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\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 4080 set thread context of 3736	4080	cleanner.exe	82

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 19 IoCs

pid	Process
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
504	Documents_00924930493030493.exe
4080	cleanner.exe
4080	cleanner.exe
3736	InstallUtil.exe
3736	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	504	Documents_00924930493030493.exe
Token: SeDebugPrivilege	4080	cleanner.exe
Token: SeDebugPrivilege	3736	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 504 wrote to memory of 2972	504	Documents_00924930493030493.exe	75
PID 504 wrote to memory of 2972	504	Documents_00924930493030493.exe	75
PID 504 wrote to memory of 2972	504	Documents_00924930493030493.exe	75
PID 2972 wrote to memory of 4076	2972	cmd.exe	77
PID 2972 wrote to memory of 4076	2972	cmd.exe	77
PID 2972 wrote to memory of 4076	2972	cmd.exe	77
PID 504 wrote to memory of 4080	504	Documents_00924930493030493.exe	81
PID 504 wrote to memory of 4080	504	Documents_00924930493030493.exe	81
PID 504 wrote to memory of 4080	504	Documents_00924930493030493.exe	81
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82
PID 4080 wrote to memory of 3736	4080	cleanner.exe	82

C:\Users\Admin\AppData\Local\Temp\Documents_00924930493030493.exe
"C:\Users\Admin\AppData\Local\Temp\Documents_00924930493030493.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:504
- 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:2972
- - 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:4076
- C:\Users\Admin\AppData\Local\cleanner.exe
  "C:\Users\Admin\AppData\Local\cleanner.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4080
- - 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:3736

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/504-9-0x00000000055F0000-0x00000000055F1000-memory.dmp

Download

memory/504-5-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

Download

memory/504-2-0x0000000073D40000-0x000000007442E000-memory.dmp

Download

memory/504-11-0x0000000006E00000-0x0000000006E2F000-memory.dmp

Download

memory/504-3-0x0000000000C00000-0x0000000000C01000-memory.dmp

Download

memory/504-8-0x00000000057C0000-0x00000000057C1000-memory.dmp

Download

memory/504-14-0x00000000055F1000-0x00000000055F2000-memory.dmp

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memory/504-6-0x0000000005660000-0x0000000005661000-memory.dmp

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memory/504-7-0x0000000005700000-0x0000000005701000-memory.dmp

Download

memory/3736-35-0x0000000073D40000-0x000000007442E000-memory.dmp

Download

memory/3736-31-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/3736-40-0x00000000054D0000-0x00000000054D1000-memory.dmp

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memory/3736-41-0x0000000005430000-0x0000000005431000-memory.dmp

Download

memory/3736-42-0x0000000005F30000-0x0000000005F31000-memory.dmp

Download

memory/4080-25-0x00000000062B0000-0x00000000062B1000-memory.dmp

Download

memory/4080-28-0x00000000062B1000-0x00000000062B2000-memory.dmp

Download

memory/4080-29-0x0000000006E10000-0x0000000006E1B000-memory.dmp

Download

memory/4080-30-0x0000000006E30000-0x0000000006E31000-memory.dmp

Download

memory/4080-18-0x0000000073D40000-0x000000007442E000-memory.dmp

Download