agenttesla | e1b549bd05736c388c814950d462d9bc1e0d3981e9ef4cdea18ef124bb4c4164

General

Target

PO.exe
Size

749KB
MD5

0e23ff638e20be5ad0cfa6fcdb90256c
SHA1

9a44b604fe6a1b396d39952369ce123970749f0a
SHA256

20d30752c1f8518e484b7f72333e4e1cbb5e61068837d46f16e6f4eedf08908c
SHA512

b2ef07dc937b78cd8f7929b1b8f57f5c4b64091be5575b479c7c0c9ec0e9b3c9a6ccea9b9042d229065e8156a7c67e2f5981e725951a45f9cd932fec86091f51
SSDEEP

12288:dfFtIu6U4/PTW7Z0KCnvP5axG0vwfpnOmAm/N+CB1nkhJ:dXIxva7ZQX54rmAmVtyJ

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
w#chNV#1

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
w#chNV#1
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ZUHFqcY = "C:\\Users\\Admin\\AppData\\Roaming\\ZUHFqcY\\ZUHFqcY.exe"	PO.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
19	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4292 set thread context of 396	4292	PO.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
396	PO.exe
396	PO.exe
396	PO.exe
396	PO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	396	PO.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87
PID 4292 wrote to memory of 396	4292	PO.exe	87

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/396-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/396-20-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/396-19-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download
memory/396-17-0x00000000051E0000-0x0000000005246000-memory.dmp

Filesize
408KB

Download
memory/396-16-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/396-14-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-4-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/4292-8-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/4292-9-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-10-0x0000000003050000-0x00000000030D6000-memory.dmp

Filesize
536KB

Download
memory/4292-7-0x0000000005D30000-0x0000000005D4E000-memory.dmp

Filesize
120KB

Download
memory/4292-6-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-5-0x0000000005AC0000-0x0000000005B5C000-memory.dmp

Filesize
624KB

Download
memory/4292-15-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/4292-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/4292-2-0x0000000005D60000-0x0000000006304000-memory.dmp

Filesize
5.6MB

Download
memory/4292-1-0x0000000000D00000-0x0000000000DC2000-memory.dmp

Filesize
776KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads