agenttesla | 0729173071c96d8afc5b9e9b2034ef579c85dbaac6e59bf7f12ebaebbbbb5d37

General

Target

77d6a60c699a7759aebd79d699d7f422.exe
Size

2.2MB
MD5

77d6a60c699a7759aebd79d699d7f422
SHA1

94a88f1d3df1ecc5242ebc588d4ef3e56edba9c4
SHA256

0729173071c96d8afc5b9e9b2034ef579c85dbaac6e59bf7f12ebaebbbbb5d37
SHA512

793214b5bba66417792734109cbce02a71d3cb1b4e3f18f94f433f5975f92b831ae3e61f4506b8789ce156c004b5bac379afcc5a31e25a8a9bee641625b2beda
SSDEEP

49152:4oh8rPf5W1hjfjt+rWbrnVi5cYkkOhCOByCtHPXltn9l/ulNUqr4J3aqusqDRn9J:4yafAn/trDVNf3E2/y0FORP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Great@12345

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/3068-17-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/3068-23-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/3068-20-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/3068-14-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/3068-13-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Executes dropped EXE 3 IoCs

pid	Process
3004	test.exe
2872	test.exe
3068	test.exe

Loads dropped DLL 3 IoCs

pid	Process
2880	cmd.exe
3004	test.exe
3004	test.exe

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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2652-1-0x0000000000400000-0x00000000007DF000-memory.dmp	upx
behavioral1/memory/2652-24-0x0000000000400000-0x00000000007DF000-memory.dmp	upx
behavioral1/memory/2652-29-0x0000000000400000-0x00000000007DF000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 3068	3004	test.exe	32

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3004	test.exe
3004	test.exe
3068	test.exe
3068	test.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	test.exe
Token: SeDebugPrivilege	3068	test.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2880	2652	77d6a60c699a7759aebd79d699d7f422.exe	29
PID 2652 wrote to memory of 2880	2652	77d6a60c699a7759aebd79d699d7f422.exe	29
PID 2652 wrote to memory of 2880	2652	77d6a60c699a7759aebd79d699d7f422.exe	29
PID 2652 wrote to memory of 2880	2652	77d6a60c699a7759aebd79d699d7f422.exe	29
PID 2880 wrote to memory of 3004	2880	cmd.exe	30
PID 2880 wrote to memory of 3004	2880	cmd.exe	30
PID 2880 wrote to memory of 3004	2880	cmd.exe	30
PID 2880 wrote to memory of 3004	2880	cmd.exe	30
PID 3004 wrote to memory of 2872	3004	test.exe	33
PID 3004 wrote to memory of 2872	3004	test.exe	33
PID 3004 wrote to memory of 2872	3004	test.exe	33
PID 3004 wrote to memory of 2872	3004	test.exe	33
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32
PID 3004 wrote to memory of 3068	3004	test.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\77d6a60c699a7759aebd79d699d7f422.exe
"C:\Users\Admin\AppData\Local\Temp\77d6a60c699a7759aebd79d699d7f422.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3004
  - - C:\Users\Admin\AppData\Local\Temp\test.exe
      "{path}"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook profiles
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      outlook_office_path
      outlook_win_path
      PID:3068
  - - C:\Users\Admin\AppData\Local\Temp\test.exe
      "{path}"
      4⤵
      Executes dropped EXE
      PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
450KB

MD5
3eca7d2fa3bdbf3c54680d61818f99e4

SHA1
847ab63b0f6b1da5be256df8ce29617a0020b01b

SHA256
219760dead477932b0a969b38ecc8d7ee41b2da4de72f32700f905cd705c340f

SHA512
36792f1e178570bd0d10c622f9bf25f2018db65958dafb096a06ada26511702c1e395beed5154280b350417412f17c20fee949b74597aa5ddd8fc20481dd6248

Download Submit
memory/2652-24-0x0000000000400000-0x00000000007DF000-memory.dmp

Filesize
3.9MB

Download
memory/2652-29-0x0000000000400000-0x00000000007DF000-memory.dmp

Filesize
3.9MB

Download
memory/2652-1-0x0000000000400000-0x00000000007DF000-memory.dmp

Filesize
3.9MB

Download
memory/3004-5-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-7-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-6-0x00000000007E0000-0x0000000000820000-memory.dmp

Filesize
256KB

Download
memory/3004-22-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3068-25-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3068-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-27-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3068-26-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/3068-20-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-23-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-28-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/3068-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3068-31-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/3068-30-0x0000000074CD0000-0x000000007527B000-memory.dmp

Filesize
5.7MB

Download
memory/3068-32-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing