agenttesla | feb2a76da4a40162c176b45136b620468f4d7468b57da363bd8af9d2f31f6872

General

Target

JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
Size

452KB
MD5

5c48977b7b1b328696708e191d8ca046
SHA1

dde82b95c2b00a94f86779228922a05caa17f481
SHA256

feb2a76da4a40162c176b45136b620468f4d7468b57da363bd8af9d2f31f6872
SHA512

c9cbbd8b2c020c0d7c7a8c30fad1d97d5f24d0e15f275191daffabeb3c17aef32d6362e42ba34b9fa326b035547ac11e368fcee68ca114fdf33b7f558ac23f3d
SSDEEP

6144:C1DM9YOQMymaU+4k0zFrMbJQmb6fgx5cNyNsaVFZmWX27IqE0vm64vMWLO:C9ZODymCt0VoThzcNKsqxm7Ihlvw

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.totallyanonymous.com/
Port:
21
Username:
[email protected]
Password:
306m892L

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/2688-11-0x0000000000400000-0x000000000043C000-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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4636 set thread context of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90

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_5c48977b7b1b328696708e191d8ca046.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2688	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
2688	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90
PID 4636 wrote to memory of 2688	4636	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5c48977b7b1b328696708e191d8ca046.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:2688

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_5c48977b7b1b328696708e191d8ca046.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/2688-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2688-23-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2688-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2688-21-0x0000000005FB0000-0x0000000006000000-memory.dmp

Filesize
320KB

Download
memory/2688-20-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2688-19-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2688-18-0x0000000005C00000-0x0000000005C66000-memory.dmp

Filesize
408KB

Download
memory/2688-17-0x0000000005360000-0x0000000005378000-memory.dmp

Filesize
96KB

Download
memory/2688-16-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2688-14-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4636-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4636-10-0x0000000007210000-0x0000000007270000-memory.dmp

Filesize
384KB

Download
memory/4636-9-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4636-15-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4636-8-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/4636-7-0x0000000005C40000-0x0000000005C4E000-memory.dmp

Filesize
56KB

Download
memory/4636-6-0x0000000006E60000-0x0000000006EFC000-memory.dmp

Filesize
624KB

Download
memory/4636-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/4636-4-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/4636-3-0x00000000056F0000-0x0000000005782000-memory.dmp

Filesize
584KB

Download
memory/4636-2-0x0000000005CA0000-0x0000000006244000-memory.dmp

Filesize
5.6MB

Download
memory/4636-1-0x0000000000C90000-0x0000000000D08000-memory.dmp

Filesize
480KB

Download

Analysis

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