agenttesla | d1933850d05d345bc57356333ebe41446a5e1f7a7b09626a6906202f174852c1 | Triage

Analysis

max time kernel
104s
max time network
154s
platform
windows10_x64
resource
win10v20210410
submitted
30-07-2021 15:25

Sharing

Report Analysis Logs

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 2 IoCs

resource	yara_rule
behavioral19/memory/3860-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral19/memory/3860-127-0x000000000043777E-mapping.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 500 set thread context of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81

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
3348	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
3860	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
3860	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe
Token: SeDebugPrivilege	3860	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 500 wrote to memory of 3348	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	79
PID 500 wrote to memory of 3348	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	79
PID 500 wrote to memory of 3348	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	79
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81
PID 500 wrote to memory of 3860	500	4fd784c26daf0b1877d7ffd53710b7312d89c8af0f3e640c1584d238e7e68949.exe	81

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:500
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GlwWNTUz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1DBA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3348
- 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:3860

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

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Downloads

memory/500-123-0x0000000006A80000-0x0000000006ABC000-memory.dmp

Filesize
240KB

Download
memory/500-116-0x00000000051C0000-0x00000000051C1000-memory.dmp

Filesize
4KB

Download
memory/500-119-0x0000000004F00000-0x0000000004F01000-memory.dmp

Filesize
4KB

Download
memory/500-120-0x0000000004CC0000-0x00000000051BE000-memory.dmp

Filesize
5.0MB

Download
memory/500-121-0x0000000005140000-0x000000000515B000-memory.dmp

Filesize
108KB

Download
memory/500-122-0x0000000006A00000-0x0000000006A75000-memory.dmp

Filesize
468KB

Download
memory/500-114-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/500-118-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download
memory/500-117-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

Filesize
4KB

Download
memory/3860-126-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3860-133-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/3860-134-0x0000000005A30000-0x0000000005A31000-memory.dmp

Filesize
4KB

Download
memory/3860-135-0x00000000061E0000-0x00000000061E1000-memory.dmp

Filesize
4KB

Download