agenttesla | 05aed5baff08d18cdd83ce49f9f08897df25a908a4e0b0e27c4768c3e90ee174

General

Target

OLUn8L3Z.exe
Size

940KB
MD5

d7a6c07be5a5f212884d01797c3d5fa6
SHA1

e4cb2a03354a7417f1062c89b0f08018863380df
SHA256

71032ee8d3bb7e5b97fc58c2478c58b218730eb7a56929da7c5d4816e202e71c
SHA512

50cddcdff86594fea2f2ffe24cdef71b0bf9fbd46703f3dca37f2a89630a57ea63c0b5cbd2d0be682e2e9f03bdcb478cd61c5bc959fa7f35d132e70f04f20d7c

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.mesco-midhco.com
Port:
587
Username:
[email protected]
Password:
fFEawV%0

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2088-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2088-127-0x000000000043749E-mapping.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

OLUn8L3Z.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pGKuRU = "C:\\Users\\Admin\\AppData\\Roaming\\pGKuRU\\pGKuRU.exe"	OLUn8L3Z.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

OLUn8L3Z.exe

description pid process target process

PID 364 set thread context of 2088 364 OLUn8L3Z.exe OLUn8L3Z.exe
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.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2772 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

OLUn8L3Z.exeOLUn8L3Z.exe

pid process

364 OLUn8L3Z.exe
364 OLUn8L3Z.exe
364 OLUn8L3Z.exe
364 OLUn8L3Z.exe
2088 OLUn8L3Z.exe
2088 OLUn8L3Z.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

OLUn8L3Z.exeOLUn8L3Z.exe

description pid process

Token: SeDebugPrivilege 364 OLUn8L3Z.exe
Token: SeDebugPrivilege 2088 OLUn8L3Z.exe

description	pid	process	target process
PID 364 set thread context of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe

pid	process
2772	schtasks.exe

pid	process
364	OLUn8L3Z.exe
364	OLUn8L3Z.exe
364	OLUn8L3Z.exe
364	OLUn8L3Z.exe
2088	OLUn8L3Z.exe
2088	OLUn8L3Z.exe

description	pid	process
Token: SeDebugPrivilege	364	OLUn8L3Z.exe
Token: SeDebugPrivilege	2088	OLUn8L3Z.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

OLUn8L3Z.exe

description	pid	process	target process
PID 364 wrote to memory of 2772	364	OLUn8L3Z.exe	schtasks.exe
PID 364 wrote to memory of 2772	364	OLUn8L3Z.exe	schtasks.exe
PID 364 wrote to memory of 2772	364	OLUn8L3Z.exe	schtasks.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe
PID 364 wrote to memory of 2088	364	OLUn8L3Z.exe	OLUn8L3Z.exe

C:\Users\Admin\AppData\Local\Temp\OLUn8L3Z.exe
"C:\Users\Admin\AppData\Local\Temp\OLUn8L3Z.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ainJbd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB08.tmp"
2⤵
- Creates scheduled task(s)
PID:2772

C:\Users\Admin\AppData\Local\Temp\OLUn8L3Z.exe
"C:\Users\Admin\AppData\Local\Temp\OLUn8L3Z.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2088

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB08.tmp
MD5
b6d5b8dd2b205efc6994250287644fbd

SHA1
fd54117b9b5cf9173a14fa6295261e31066aefed

SHA256
f96c4fb9111e2cbe351c8f1662f1295e3dee5f86aa56b304e4f73aaa3e7bbc55

SHA512
e8fda39af7d2519d2fc383cd0e3031fb6ebd4cf27175b7a4fa47660a488b3b17e12f82d77c0110dd9700387a95b64a542081dd6cdf51af52139761948bcfe42a

Download Submit
memory/364-123-0x0000000009A20000-0x0000000009A67000-memory.dmp

Filesize
284KB

Download
memory/364-116-0x0000000005630000-0x0000000005631000-memory.dmp

Filesize
4KB

Download
memory/364-118-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/364-119-0x0000000005020000-0x0000000005021000-memory.dmp

Filesize
4KB

Download
memory/364-120-0x0000000005130000-0x000000000562E000-memory.dmp

Filesize
5.0MB

Download
memory/364-121-0x00000000051B0000-0x00000000051B9000-memory.dmp

Filesize
36KB

Download
memory/364-117-0x0000000005030000-0x0000000005031000-memory.dmp

Filesize
4KB

Download
memory/364-114-0x0000000000710000-0x0000000000711000-memory.dmp

Filesize
4KB

Download
memory/364-122-0x0000000001050000-0x00000000010D0000-memory.dmp

Filesize
512KB

Download
memory/2088-126-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2088-127-0x000000000043749E-mapping.dmp

Download
memory/2088-132-0x00000000056A0000-0x00000000056A1000-memory.dmp

Filesize
4KB

Download
memory/2088-133-0x00000000062F0000-0x00000000062F1000-memory.dmp

Filesize
4KB

Download
memory/2088-134-0x0000000006390000-0x0000000006391000-memory.dmp

Filesize
4KB

Download
memory/2772-124-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads