agenttesla | 636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53

General

Target

PO-020716-WA0002.pdf..exe
Size

696KB
MD5

c51a9f02f48f2b02ecbbe5f330c211a4
SHA1

394e84d7e16cf386f4b33bb2761cfb9beb13595a
SHA256

636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53
SHA512

085f8c471bfed18d83795cdc6acb44730c637a2b106188edda8cefbea9213923d638a107ec5052b426e0d14f2d8c7fd10f5c89c816ae5da29ca28fcf55eb46fb
SSDEEP

12288:fY/SDzsiLGVTYEMaWrrdmZzaXRaHd/7g9JYms1PAo6:fY/SDDSfMhvgacd/qJYms1Yx

Score

10^/10

agenttesla execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.brianberrills-ie.com
Port:
587
Username:
[email protected]
Password:
k)(yecz3
Email To:
[email protected]

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2204	powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 2 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

Looks up external IP address via web service 2 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 2640	2004	PO-020716-WA0002.pdf..exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2004	PO-020716-WA0002.pdf..exe
2640	PO-020716-WA0002.pdf..exe
2640	PO-020716-WA0002.pdf..exe
2204	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	PO-020716-WA0002.pdf..exe
Token: SeDebugPrivilege	2640	PO-020716-WA0002.pdf..exe
Token: SeDebugPrivilege	2204	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2204	2004	PO-020716-WA0002.pdf..exe	28
PID 2004 wrote to memory of 2204	2004	PO-020716-WA0002.pdf..exe	28
PID 2004 wrote to memory of 2204	2004	PO-020716-WA0002.pdf..exe	28
PID 2004 wrote to memory of 2204	2004	PO-020716-WA0002.pdf..exe	28
PID 2004 wrote to memory of 2620	2004	PO-020716-WA0002.pdf..exe	30
PID 2004 wrote to memory of 2620	2004	PO-020716-WA0002.pdf..exe	30
PID 2004 wrote to memory of 2620	2004	PO-020716-WA0002.pdf..exe	30
PID 2004 wrote to memory of 2620	2004	PO-020716-WA0002.pdf..exe	30
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31
PID 2004 wrote to memory of 2640	2004	PO-020716-WA0002.pdf..exe	31

C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe
"C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe
  "C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
  2⤵
  PID:2620
- C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe
  "C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2004-19-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-1-0x00000000001B0000-0x0000000000264000-memory.dmp

Filesize
720KB

Download
memory/2004-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-3-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/2004-4-0x00000000002D0000-0x00000000002DC000-memory.dmp

Filesize
48KB

Download
memory/2004-5-0x0000000001FB0000-0x0000000002032000-memory.dmp

Filesize
520KB

Download
memory/2004-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

Filesize
4KB

Download
memory/2640-6-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-8-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-16-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-10-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2640-7-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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