agenttesla | 19b7ae6956a38825ac143952843f6e046c642a9dc635e18d4f84dcff4568c142

General

Target

ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
Size

636KB
MD5

ef737a50b718f9d4c3331f926edd8e8c
SHA1

10a6cf02f6ebbd93212782122800e4978172d579
SHA256

19b7ae6956a38825ac143952843f6e046c642a9dc635e18d4f84dcff4568c142
SHA512

8f1aff36697d0d7544d96bc3ed949f79d8627c45328fec300bcfcb91f8378a7be62d271e51adc36f6d63fc2e62c157b006dfe9291125a040cd2b03a17053ba81
SSDEEP

12288:6C+Pupk1AE4++rM4FdPEbw+Sf6ygbL7EKzIlxoQ7aIrDv8E0FKIa:NUAE4RrJFdPrmuIQWIrDZMna

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
poundsboy24

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/2912-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
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-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91

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	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
2912	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
2912	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
Token: SeDebugPrivilege	2912	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91
PID 2852 wrote to memory of 2912	2852	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Users\Admin\AppData\Local\Temp\ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe
  "{path}"
  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:2912

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ef737a50b718f9d4c3331f926edd8e8c_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2852-6-0x0000000005AC0000-0x0000000005AD2000-memory.dmp

Filesize
72KB

Download
memory/2852-2-0x0000000005E20000-0x00000000063C4000-memory.dmp

Filesize
5.6MB

Download
memory/2852-3-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/2852-4-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/2852-5-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2852-1-0x0000000000E00000-0x0000000000EA6000-memory.dmp

Filesize
664KB

Download
memory/2852-7-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2852-8-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2852-9-0x00000000072B0000-0x000000000731A000-memory.dmp

Filesize
424KB

Download
memory/2852-10-0x00000000098C0000-0x0000000009920000-memory.dmp

Filesize
384KB

Download
memory/2852-11-0x000000000CE40000-0x000000000CEDC000-memory.dmp

Filesize
624KB

Download
memory/2852-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2852-16-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2912-15-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-17-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-18-0x0000000005440000-0x0000000005458000-memory.dmp

Filesize
96KB

Download
memory/2912-19-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/2912-20-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-21-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-22-0x0000000006740000-0x0000000006790000-memory.dmp

Filesize
320KB

Download
memory/2912-23-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download
memory/2912-24-0x00000000748E0000-0x0000000075090000-memory.dmp

Filesize
7.7MB

Download

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