agenttesla | 08c67cfff3019f46339a127fe6176c29e3cc26f6df60cb01cf20abcbb3180360

General

Target

Invoice 752041.exe
Size

343KB
MD5

5aa23d8b62564d941b9280e3e6a4a7f7
SHA1

05982135347d56efb1009e25f59bb334bcc0ee9f
SHA256

2e8cc38f3632a65650d4cb44f5c9b66b5a31e9e431f21a67615a3566a3f0cb9e
SHA512

f831f2648e211c1c32348a13f9d465371b7581828d5eea339a957c5fb76718ee04654ba7832f53ae6eb7d01fdd558c35b73bdc99559b6a31986bef38d36a7a82
SSDEEP

6144:RMtupv8mx9piku5erIF9XCA2RO0F8S9hIlS8VPR5PJ9+fZmTDmv6MZRQtSYvbQnf:RMMpvJ/k35eUnN2Q0F8Whn8V55/2OCvw

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1183413987946274836/x2mGL5RsDliW33UcztWPXWKu2_GrASEJKuUh8AEd9kIV3tIOo9lsaMizqXjKhhr_O01m

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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 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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
38	ip-api.com

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 1552	3656	Invoice 752041.exe	89
PID 3656 set thread context of 2252	3656	Invoice 752041.exe	94
PID 3656 set thread context of 2612	3656	Invoice 752041.exe	100

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2296	1552	WerFault.exe	89
3296	2252	WerFault.exe	94

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2612	Invoice 752041.exe
2612	Invoice 752041.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2612	Invoice 752041.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 1552	3656	Invoice 752041.exe	89
PID 3656 wrote to memory of 1552	3656	Invoice 752041.exe	89
PID 3656 wrote to memory of 1552	3656	Invoice 752041.exe	89
PID 3656 wrote to memory of 1552	3656	Invoice 752041.exe	89
PID 3656 wrote to memory of 2252	3656	Invoice 752041.exe	94
PID 3656 wrote to memory of 2252	3656	Invoice 752041.exe	94
PID 3656 wrote to memory of 2252	3656	Invoice 752041.exe	94
PID 3656 wrote to memory of 2252	3656	Invoice 752041.exe	94
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100
PID 3656 wrote to memory of 2612	3656	Invoice 752041.exe	100

C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe"
  2⤵
  PID:1552
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 80
    3⤵
    - Program crash
    PID:2296
- C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe"
  2⤵
  PID:2252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 80
    3⤵
    - Program crash
    PID:3296
- C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 752041.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1552 -ip 1552
1⤵
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2252 -ip 2252
1⤵
PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2612-14-0x0000000006C00000-0x0000000006C9C000-memory.dmp

Filesize
624KB

Download
memory/2612-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2612-17-0x0000000005530000-0x0000000005540000-memory.dmp

Filesize
64KB

Download
memory/2612-16-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/2612-10-0x0000000005530000-0x0000000005540000-memory.dmp

Filesize
64KB

Download
memory/2612-15-0x0000000006E20000-0x0000000006E2A000-memory.dmp

Filesize
40KB

Download
memory/2612-13-0x0000000006B10000-0x0000000006B60000-memory.dmp

Filesize
320KB

Download
memory/2612-9-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/2612-11-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/3656-4-0x00000000055B0000-0x00000000055C0000-memory.dmp

Filesize
64KB

Download
memory/3656-12-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-0-0x0000000000BB0000-0x0000000000C0C000-memory.dmp

Filesize
368KB

Download
memory/3656-1-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/3656-6-0x0000000005570000-0x0000000005571000-memory.dmp

Filesize
4KB

Download
memory/3656-3-0x00000000055E0000-0x0000000005672000-memory.dmp

Filesize
584KB

Download
memory/3656-2-0x0000000005A90000-0x0000000006034000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing