agenttesla | aa8eca13cc8a3bae0616cca54b78e4cc9c19beb27a2a48830f1f86e4b3154a27

Analysis

max time kernel
136s
max time network
112s
platform
windows10_x64
resource
win10v20210408
submitted
11/05/2021, 06:32

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General

Target
Proforma_invoice.exe
Size 582KB
Sample210511-5byrw4qqda
SHA256 aa8eca13cc8a3bae0616cca54b78e4cc9c19beb27a2a48830f1f86e4b3154a27
MD5 e41f49ccc0f0d0af5ed98b39067abd2a
SHA1 79c4f2b0a20878be3e0f4fa435b2aeb03f770232
SHA512 f0cf73e698dc49636346e34712841ef205431b828329146d051b483a95c0d6e782f357e2490c25530cc1e30dce46ce13b4c4bd94e2a6393efd52edadfe1ae02f
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot1437981864:AAFmXsejy8kUC_pj3BwrEvAeb2cv12XMVZI/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
behavioral2/memory/3888-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3888-128-0x000000000043775E-mapping.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1040 set thread context of 3888	1040	Proforma_invoice.exe	83

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

pid	Process
1272	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1040	Proforma_invoice.exe
1040	Proforma_invoice.exe
1040	Proforma_invoice.exe
1040	Proforma_invoice.exe
1040	Proforma_invoice.exe
1040	Proforma_invoice.exe
3888	Proforma_invoice.exe
3888	Proforma_invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	Proforma_invoice.exe
Token: SeDebugPrivilege	3888	Proforma_invoice.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 1272	1040	Proforma_invoice.exe	78
PID 1040 wrote to memory of 1272	1040	Proforma_invoice.exe	78
PID 1040 wrote to memory of 1272	1040	Proforma_invoice.exe	78
PID 1040 wrote to memory of 2452	1040	Proforma_invoice.exe	80
PID 1040 wrote to memory of 2452	1040	Proforma_invoice.exe	80
PID 1040 wrote to memory of 2452	1040	Proforma_invoice.exe	80
PID 1040 wrote to memory of 2112	1040	Proforma_invoice.exe	81
PID 1040 wrote to memory of 2112	1040	Proforma_invoice.exe	81
PID 1040 wrote to memory of 2112	1040	Proforma_invoice.exe	81
PID 1040 wrote to memory of 2584	1040	Proforma_invoice.exe	82
PID 1040 wrote to memory of 2584	1040	Proforma_invoice.exe	82
PID 1040 wrote to memory of 2584	1040	Proforma_invoice.exe	82
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83
PID 1040 wrote to memory of 3888	1040	Proforma_invoice.exe	83

C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KjnSPmfBO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C93.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1272
- C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe"
  2⤵
  PID:2452
- C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe"
  2⤵
  PID:2112
- C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe"
  2⤵
  PID:2584
- C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma_invoice.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3888

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1040-123-0x0000000000AE0000-0x0000000000B57000-memory.dmp

Download

memory/1040-124-0x0000000007F10000-0x0000000007F51000-memory.dmp

Download

memory/1040-119-0x0000000004A30000-0x0000000004ACC000-memory.dmp

Download

memory/1040-120-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

Download

memory/1040-121-0x0000000004E10000-0x0000000004E11000-memory.dmp

Download

memory/1040-122-0x0000000004E70000-0x0000000004E74000-memory.dmp

Download

memory/1040-114-0x0000000000250000-0x0000000000251000-memory.dmp

Download

memory/1040-118-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

Download

memory/1040-116-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

Download

memory/1040-117-0x0000000005110000-0x0000000005111000-memory.dmp

Download

memory/3888-127-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3888-134-0x0000000004F80000-0x0000000004F81000-memory.dmp

Download

memory/3888-135-0x0000000004F60000-0x0000000004F61000-memory.dmp

Download

memory/3888-136-0x0000000005530000-0x0000000005531000-memory.dmp

Download