agenttesla | 45719f60df4e313a597a446478a2bfb629e28ee399f40b9b816f59af3bd51ba5

General

Target

aa4a12fce9e052cdea99d277d222a6f9.exe
Size

2.2MB
MD5

aa4a12fce9e052cdea99d277d222a6f9
SHA1

ece4723661a64a169d139d7cf6c17dbc5b608695
SHA256

45719f60df4e313a597a446478a2bfb629e28ee399f40b9b816f59af3bd51ba5
SHA512

f0bbfbd8476f0c6d280c69d677751b3fadb5cdeddd1ebb1bb1e033e9783c25287fc3483c3dec72cbfa72265777a0e6cba465a22f5c2add9bbce7ae9fd04bdea9
SSDEEP

49152:Foh8rPf5W1hjfjt+rWbrnVi5cYkkOhCOByCtHPXltn9l/ulNUqr4J3aqusqDRn9r:FyafAn/trDVNf3E2/y0FORN

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Credentials

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

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 1 IoCs

resource	yara_rule
behavioral2/memory/3892-8-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1780	test.exe
3892	test.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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1604-0-0x0000000000400000-0x00000000007DF000-memory.dmp	upx
behavioral2/memory/1604-15-0x0000000000400000-0x00000000007DF000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1780 set thread context of 3892	1780	test.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3892	test.exe
3892	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3892	test.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 1380	1604	aa4a12fce9e052cdea99d277d222a6f9.exe	90
PID 1604 wrote to memory of 1380	1604	aa4a12fce9e052cdea99d277d222a6f9.exe	90
PID 1604 wrote to memory of 1380	1604	aa4a12fce9e052cdea99d277d222a6f9.exe	90
PID 1380 wrote to memory of 1780	1380	cmd.exe	92
PID 1380 wrote to memory of 1780	1380	cmd.exe	92
PID 1380 wrote to memory of 1780	1380	cmd.exe	92
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93
PID 1780 wrote to memory of 3892	1780	test.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\aa4a12fce9e052cdea99d277d222a6f9.exe
"C:\Users\Admin\AppData\Local\Temp\aa4a12fce9e052cdea99d277d222a6f9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1604
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1380
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1780
  - - 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:3892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\test.exe.log

Filesize
496B

MD5
cb76b18ebed3a9f05a14aed43d35fba6

SHA1
836a4b4e351846fca08b84149cb734cb59b8c0d6

SHA256
8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

SHA512
7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

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

Filesize
450KB

MD5
3eca7d2fa3bdbf3c54680d61818f99e4

SHA1
847ab63b0f6b1da5be256df8ce29617a0020b01b

SHA256
219760dead477932b0a969b38ecc8d7ee41b2da4de72f32700f905cd705c340f

SHA512
36792f1e178570bd0d10c622f9bf25f2018db65958dafb096a06ada26511702c1e395beed5154280b350417412f17c20fee949b74597aa5ddd8fc20481dd6248

Download Submit
memory/1604-0-0x0000000000400000-0x00000000007DF000-memory.dmp

Filesize
3.9MB

Download
memory/1604-15-0x0000000000400000-0x00000000007DF000-memory.dmp

Filesize
3.9MB

Download
memory/1780-5-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/1780-6-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/1780-7-0x0000000001800000-0x0000000001810000-memory.dmp

Filesize
64KB

Download
memory/1780-12-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/3892-13-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/3892-14-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/3892-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3892-16-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/3892-17-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/3892-18-0x00000000752E0000-0x0000000075891000-memory.dmp

Filesize
5.7MB

Download
memory/3892-19-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/3892-20-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads