agenttesla | c09a64df71db0720511fcbc521afd0023f121c2b015e57f8ddf773f0850c0f48

General

Target
ENQ_78954100.exe
Size 198KB
Sample220412-njt8psbbbr
SHA256 c09a64df71db0720511fcbc521afd0023f121c2b015e57f8ddf773f0850c0f48
MD5 b76101c1900acf1765f263dd07959533
SHA1 0580283428706b31b08a70ea9e1724d776ecb1f7
SHA512 5de04e6d10a251e61ecc5a7b16586db5c20266c92992d293c62240799df2ad87af12cc5c20d80a9445fe6574815d7e300e0f399280b8834f9ac35c8e8c5cad6d
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	ENQ_78954100.exe

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

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 stealer

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ENQ_78954100.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ENQ_78954100.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ENQ_78954100.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\book = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\pczn\\book.exe\""	ENQ_78954100.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cTlNs = "C:\\Users\\Admin\\AppData\\Roaming\\cTlNs\\cTlNs.exe"	ENQ_78954100.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 2964	1508	ENQ_78954100.exe	91

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1648	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1508	ENQ_78954100.exe
1508	ENQ_78954100.exe
2964	ENQ_78954100.exe
2964	ENQ_78954100.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	ENQ_78954100.exe
Token: SeDebugPrivilege	2964	ENQ_78954100.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	ENQ_78954100.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 4656	1508	ENQ_78954100.exe	87
PID 1508 wrote to memory of 4656	1508	ENQ_78954100.exe	87
PID 1508 wrote to memory of 4656	1508	ENQ_78954100.exe	87
PID 4656 wrote to memory of 1648	4656	cmd.exe	89
PID 4656 wrote to memory of 1648	4656	cmd.exe	89
PID 4656 wrote to memory of 1648	4656	cmd.exe	89
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91
PID 1508 wrote to memory of 2964	1508	ENQ_78954100.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ENQ_78954100.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ENQ_78954100.exe

C:\Users\Admin\AppData\Local\Temp\ENQ_78954100.exe
"C:\Users\Admin\AppData\Local\Temp\ENQ_78954100.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4656
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - Delays execution with timeout.exe
    PID:1648
- C:\Users\Admin\AppData\Local\Temp\ENQ_78954100.exe
  C:\Users\Admin\AppData\Local\Temp\ENQ_78954100.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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ENQ_78954100.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ENQ_78954100.exe.log
Size 1KB
SHA256 48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8
MD5 7ebe314bf617dc3e48b995a6c352740c
SHA1 538f643b7b30f9231a3035c448607f767527a870
SHA512 0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e
MD5 SHA1 SHA512

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memory/1508-130-0x0000000000600000-0x0000000000636000-memory.dmp

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memory/1508-131-0x00000000053B0000-0x0000000005954000-memory.dmp

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memory/1508-132-0x0000000004EA0000-0x0000000004F32000-memory.dmp

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memory/1508-133-0x0000000004E80000-0x0000000004E8A000-memory.dmp

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memory/2964-137-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/2964-139-0x0000000005590000-0x000000000562C000-memory.dmp

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memory/2964-140-0x0000000006230000-0x0000000006296000-memory.dmp

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memory/2964-141-0x00000000069A0000-0x00000000069F0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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