agenttesla | 870eb8a97b16ac3b0f7c259a91be78b86778433e4e06d5f35ad2007427c28749

Analysis

max time kernel
147s
max time network
11s
platform
windows7_x64
resource
win7v20201028
submitted
25/03/2021, 07:10

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General

Target
payment advice.pdf.exe
Size 1001KB
Sample210325-k4s4fxcd76
SHA256 870eb8a97b16ac3b0f7c259a91be78b86778433e4e06d5f35ad2007427c28749
MD5 06de32db219e6adf75443458103514e4
SHA1 a56c98710372cc306c16a0c4a7fd6a1f9407ab78
SHA512 3d7ccc6f1268a43ca650e8807dc9ea3ad36314f753e7e6fdb705796f0ccbcca7b7355180a12675d90b7dcb2d9488fcedbe60a5c25f89284f2bb0afc6497d9777
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
104socceryandex

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
behavioral1/memory/760-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/760-11-0x00000000004374FE-mapping.dmp	family_agenttesla
behavioral1/memory/760-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1684 set thread context of 760	1684	payment advice.pdf.exe	35

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
564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1684	payment advice.pdf.exe
1684	payment advice.pdf.exe
1684	payment advice.pdf.exe
1684	payment advice.pdf.exe
760	payment advice.pdf.exe
760	payment advice.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	payment advice.pdf.exe
Token: SeDebugPrivilege	760	payment advice.pdf.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 564	1684	payment advice.pdf.exe	29
PID 1684 wrote to memory of 564	1684	payment advice.pdf.exe	29
PID 1684 wrote to memory of 564	1684	payment advice.pdf.exe	29
PID 1684 wrote to memory of 564	1684	payment advice.pdf.exe	29
PID 1684 wrote to memory of 1520	1684	payment advice.pdf.exe	31
PID 1684 wrote to memory of 1520	1684	payment advice.pdf.exe	31
PID 1684 wrote to memory of 1520	1684	payment advice.pdf.exe	31
PID 1684 wrote to memory of 1520	1684	payment advice.pdf.exe	31
PID 1684 wrote to memory of 976	1684	payment advice.pdf.exe	32
PID 1684 wrote to memory of 976	1684	payment advice.pdf.exe	32
PID 1684 wrote to memory of 976	1684	payment advice.pdf.exe	32
PID 1684 wrote to memory of 976	1684	payment advice.pdf.exe	32
PID 1684 wrote to memory of 1364	1684	payment advice.pdf.exe	33
PID 1684 wrote to memory of 1364	1684	payment advice.pdf.exe	33
PID 1684 wrote to memory of 1364	1684	payment advice.pdf.exe	33
PID 1684 wrote to memory of 1364	1684	payment advice.pdf.exe	33
PID 1684 wrote to memory of 1616	1684	payment advice.pdf.exe	34
PID 1684 wrote to memory of 1616	1684	payment advice.pdf.exe	34
PID 1684 wrote to memory of 1616	1684	payment advice.pdf.exe	34
PID 1684 wrote to memory of 1616	1684	payment advice.pdf.exe	34
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35
PID 1684 wrote to memory of 760	1684	payment advice.pdf.exe	35

C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ywCPCJNwztC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA0B2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:564
- C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
  2⤵
  PID:1520
- C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
  2⤵
  PID:976
- C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
  2⤵
  PID:1364
- C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
  2⤵
  PID:1616
- C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\payment advice.pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:760

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/760-10-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/760-12-0x0000000074670000-0x0000000074D5E000-memory.dmp

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memory/760-13-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/760-15-0x0000000004240000-0x0000000004241000-memory.dmp

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memory/1684-2-0x0000000074670000-0x0000000074D5E000-memory.dmp

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memory/1684-3-0x0000000000100000-0x0000000000101000-memory.dmp

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memory/1684-5-0x0000000004E80000-0x0000000004E81000-memory.dmp

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memory/1684-6-0x00000000004B0000-0x00000000004BB000-memory.dmp

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memory/1684-7-0x0000000004DD0000-0x0000000004E4A000-memory.dmp

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