agenttesla | d1933850d05d345bc57356333ebe41446a5e1f7a7b09626a6906202f174852c1 | Triage

Analysis

max time kernel
100s
max time network
19s
platform
windows7_x64
resource
win7v20210410
submitted
30/07/2021, 15:25 UTC

Sharing

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General

Target

4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
Size

951KB
MD5

bdbc972b35f56a3d6ee884adafe8bf8a
SHA1

0d64630e7013645bfa3d9c8191363c7c6b6fd860
SHA256

4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949
SHA512

93ad7a6c4b44c9e1edb0bee5221aeccce0352c34019bdaff8151095db69e86e671bde6c62c8de4326816a8e75f88366bb8a8245983c332b510b4ffde417ddc95

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1635424534:AAEmSdFTyNmSh6Kk0U8EAlLQQg5g_gOyE74/sendDocument

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral18/memory/1316-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral18/memory/1316-69-0x000000000043777E-mapping.dmp	family_agenttesla
behavioral18/memory/1316-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 536 set thread context of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31

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.

Scheduled Task

pid	Process
1348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
1316	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
1316	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
Token: SeDebugPrivilege	1316	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 1348	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	29
PID 536 wrote to memory of 1348	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	29
PID 536 wrote to memory of 1348	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	29
PID 536 wrote to memory of 1348	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	29
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31
PID 536 wrote to memory of 1316	536	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	31

C:\Users\Admin\AppData\Local\Temp\4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
"C:\Users\Admin\AppData\Local\Temp\4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GlwWNTUz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp676.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1348
- C:\Users\Admin\AppData\Local\Temp\4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
  "C:\Users\Admin\AppData\Local\Temp\4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/536-60-0x0000000001010000-0x0000000001011000-memory.dmp

Filesize
4KB

Download
memory/536-62-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/536-63-0x0000000000460000-0x000000000047B000-memory.dmp

Filesize
108KB

Download
memory/536-64-0x0000000005FA0000-0x0000000006015000-memory.dmp

Filesize
468KB

Download
memory/536-65-0x0000000000B40000-0x0000000000B7C000-memory.dmp

Filesize
240KB

Download
memory/1316-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1316-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1316-72-0x0000000004B10000-0x0000000004B11000-memory.dmp

Filesize
4KB

Download