agenttesla | eddc270558f27cf00441f9056ca98264e14708d8202647bb461c371e6db85cdb

General

Target

MRKU8781602.exe
Size

612KB
MD5

bbed19abf6b369658b6996317e2e2067
SHA1

b252760938e016ea408efb75cab44defa95a6b17
SHA256

eddc270558f27cf00441f9056ca98264e14708d8202647bb461c371e6db85cdb
SHA512

94021a9caceef74dc3d3bc62e39ca056c71ea8e01683f81cde451187007d3adc6ece3640490be0797c1e2f8e2d54a7ece3a7f528fea08de6b0fa86efd4534579

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1633482536:AAF1JIS_DaayovuRrLGy_POYaI3DRc2CrPY/sendDocument

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1016-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1016-68-0x000000000043779E-mapping.dmp	family_agenttesla
behavioral1/memory/1016-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

MRKU8781602.exe

description pid process target process

PID 360 set thread context of 1016 360 MRKU8781602.exe MRKU8781602.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

564 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MRKU8781602.exe

pid process

1016 MRKU8781602.exe
1016 MRKU8781602.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MRKU8781602.exe

description pid process

Token: SeDebugPrivilege 1016 MRKU8781602.exe

description	pid	process	target process
PID 360 set thread context of 1016	360	MRKU8781602.exe	MRKU8781602.exe

pid	process
564	schtasks.exe

pid	process
1016	MRKU8781602.exe
1016	MRKU8781602.exe

description	pid	process
Token: SeDebugPrivilege	1016	MRKU8781602.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

MRKU8781602.exe

description	pid	process	target process
PID 360 wrote to memory of 564	360	MRKU8781602.exe	schtasks.exe
PID 360 wrote to memory of 564	360	MRKU8781602.exe	schtasks.exe
PID 360 wrote to memory of 564	360	MRKU8781602.exe	schtasks.exe
PID 360 wrote to memory of 564	360	MRKU8781602.exe	schtasks.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe
PID 360 wrote to memory of 1016	360	MRKU8781602.exe	MRKU8781602.exe

C:\Users\Admin\AppData\Local\Temp\MRKU8781602.exe
"C:\Users\Admin\AppData\Local\Temp\MRKU8781602.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:360

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gfrZGvetdgc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10D2.tmp"
2⤵
- Creates scheduled task(s)
PID:564

C:\Users\Admin\AppData\Local\Temp\MRKU8781602.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1016

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp10D2.tmp
MD5
eab2039d34706727b583f93dc5e00aed

SHA1
71341df86ff7132dbf4b627d58c543a0508ed7f5

SHA256
c6b26f51900d0f25c9def58b49e10b1d43f9643100321419c9607c643a2aca4d

SHA512
3565627c9790c51f261a5382665f59a96669f994eeafd7606f4f57c4fece6d8c23a4d8a04938c9ba87ce148c51546f112724933c17338ef170382c24ea117aac

Download Submit
memory/360-59-0x0000000000C50000-0x0000000000C51000-memory.dmp

Filesize
4KB

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memory/360-61-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

Filesize
4KB

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memory/360-62-0x0000000000390000-0x0000000000392000-memory.dmp

Filesize
8KB

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memory/360-63-0x0000000005F90000-0x000000000600C000-memory.dmp

Filesize
496KB

Download
memory/360-64-0x0000000000630000-0x000000000066D000-memory.dmp

Filesize
244KB

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memory/564-65-0x0000000000000000-mapping.dmp

Download
memory/1016-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1016-68-0x000000000043779E-mapping.dmp

Download
memory/1016-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1016-71-0x00000000042A0000-0x00000000042A1000-memory.dmp

Filesize
4KB

Download
memory/1016-72-0x00000000042A1000-0x00000000042A2000-memory.dmp

Filesize
4KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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