agenttesla | 5b1f24d4df73a4b7030f827e2ac416691b4bfd3fe8f1bd7e08d9a066b46fb9b7

General

Target

35742.exe
Size

763KB
MD5

475f12cc2635e010575a69ea39b22968
SHA1

17ac5e0c5e50808d5bb495d63f478687fdd297ab
SHA256

51af0a175f8c7ef9d3e6b06b54ed1c8b4175f21ebac90816c6c36fd0e62ef654
SHA512

57be18e887239afd6290715cfd1df6c1afa2e2a6c360c7a7905ddffe13cb669624092b2adb3d2452d95b6c9b5502d2319d03e52bb4c704f291ab81042aa70854

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://45.141.152.18/
Port:
21
Username:
[email protected]
Password:
wTk4W1Uhkp5u

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/1328-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1328-68-0x000000000043760E-mapping.dmp	family_agenttesla
behavioral1/memory/1328-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

35742.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\hZpzJs = "C:\\Users\\Admin\\AppData\\Roaming\\hZpzJs\\hZpzJs.exe"	35742.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

35742.exe

description pid process target process

PID 1672 set thread context of 1328 1672 35742.exe 35742.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

332 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

35742.exe35742.exe

pid process

1672 35742.exe
1672 35742.exe
1672 35742.exe
1328 35742.exe
1328 35742.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

35742.exe

pid process

1328 35742.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

35742.exe35742.exe

description pid process

Token: SeDebugPrivilege 1672 35742.exe
Token: SeDebugPrivilege 1328 35742.exe

description	pid	process	target process
PID 1672 set thread context of 1328	1672	35742.exe	35742.exe

pid	process
332	schtasks.exe

pid	process
1672	35742.exe
1672	35742.exe
1672	35742.exe
1328	35742.exe
1328	35742.exe

pid	process
1328	35742.exe

description	pid	process
Token: SeDebugPrivilege	1672	35742.exe
Token: SeDebugPrivilege	1328	35742.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

35742.exe

description	pid	process	target process
PID 1672 wrote to memory of 332	1672	35742.exe	schtasks.exe
PID 1672 wrote to memory of 332	1672	35742.exe	schtasks.exe
PID 1672 wrote to memory of 332	1672	35742.exe	schtasks.exe
PID 1672 wrote to memory of 332	1672	35742.exe	schtasks.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe
PID 1672 wrote to memory of 1328	1672	35742.exe	35742.exe

C:\Users\Admin\AppData\Local\Temp\35742.exe
"C:\Users\Admin\AppData\Local\Temp\35742.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rveyuOyOEbQqxH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp929F.tmp"
2⤵
- Creates scheduled task(s)
PID:332

C:\Users\Admin\AppData\Local\Temp\35742.exe
"C:\Users\Admin\AppData\Local\Temp\35742.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1328

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\tmp929F.tmp
MD5
d66d905443979123a0cd776c1ebfc4a9

SHA1
a33e63c2f04e8001fca5f73524e5a2f1b712d1e5

SHA256
6d4543861856668d9f94396fdb5aa28332ccd235afa5aa41fadec01e3e70e0b1

SHA512
168bad4bca2a8395522d5d2b327065c1baafbbabe162841bfdb8ae78da836b1fb51bd6a62e23fa06bb4a9e8c2e18bdf44e5d961d9285714aea9d2f7b7932672d

Download Submit
memory/332-65-0x0000000000000000-mapping.dmp

Download
memory/1328-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1328-68-0x000000000043760E-mapping.dmp

Download
memory/1328-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1328-71-0x0000000004B80000-0x0000000004B81000-memory.dmp

Filesize
4KB

Download
memory/1672-59-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/1672-61-0x0000000004C60000-0x0000000004C61000-memory.dmp

Filesize
4KB

Download
memory/1672-62-0x00000000003D0000-0x00000000003D9000-memory.dmp

Filesize
36KB

Download
memory/1672-63-0x0000000005C10000-0x0000000005C94000-memory.dmp

Filesize
528KB

Download
memory/1672-64-0x00000000007A0000-0x00000000007E8000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads