agenttesla | 3ac8204d7b4bae620e1147c97abab1ad7df8cde8362693695afec957fb21de47

General

Target

JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
Size

476KB
MD5

f700334aa8c700d12da3a237c9537664
SHA1

7480be8830261a6e47976a8eda7221a415f1c829
SHA256

3ac8204d7b4bae620e1147c97abab1ad7df8cde8362693695afec957fb21de47
SHA512

86c9e1bf2042bdd8bef14cdce9fc7e6a4897a5fc32fc1e8713df6c6495f983b045c02c0dccf5c5814ebcf9f7f42aa4f9ff3d5f3615a0c4b95fec1c70b171f7e5
SSDEEP

12288:VTHdOWOGbAwcd2tUKEEnRXi+Q+g79tXdrjKSQ:V5OWRhcQbRYTXNj

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
baorhihusmusqbnx

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3900-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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 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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 800 set thread context of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100

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	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3900	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
3900	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3900	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100
PID 800 wrote to memory of 3900	800	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f700334aa8c700d12da3a237c9537664.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/800-10-0x0000000009C10000-0x0000000009C70000-memory.dmp

Filesize
384KB

Download
memory/800-2-0x00000000051D0000-0x0000000005774000-memory.dmp

Filesize
5.6MB

Download
memory/800-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/800-3-0x0000000004B20000-0x0000000004BB2000-memory.dmp

Filesize
584KB

Download
memory/800-4-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

Filesize
40KB

Download
memory/800-5-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/800-6-0x0000000005FE0000-0x000000000607C000-memory.dmp

Filesize
624KB

Download
memory/800-7-0x0000000005F40000-0x0000000005F4E000-memory.dmp

Filesize
56KB

Download
memory/800-14-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/800-9-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/800-8-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/800-1-0x0000000000230000-0x00000000002B0000-memory.dmp

Filesize
512KB

Download
memory/3900-22-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-13-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-15-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-16-0x0000000005C40000-0x0000000005C58000-memory.dmp

Filesize
96KB

Download
memory/3900-17-0x0000000005CF0000-0x0000000005D56000-memory.dmp

Filesize
408KB

Download
memory/3900-18-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-19-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-20-0x0000000006410000-0x0000000006460000-memory.dmp

Filesize
320KB

Download
memory/3900-21-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/3900-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

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