limerat | c1e36a1edfbf3dcc0ed8b7ef724869cd60866b5690244534057294e16950856c

General

Target

e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe
Size

185KB
MD5

e8bddd761801f872c60619074a3b32c3
SHA1

e4e29f5ba3310e9e182f5d44c75b5a33424dfaef
SHA256

c1e36a1edfbf3dcc0ed8b7ef724869cd60866b5690244534057294e16950856c
SHA512

119a0f2838106bd7665b16f352f78f6bb5e6821c0b409a01fb191c0b23069ecec7eae395c380e5ab4b1f1d3ed909a77e0a058f95b75b2c3cf1c5d36a39e1ea7a
SSDEEP

3072:hIBxE0QYx6FEsIeWrqdEHCCkSyfQAWQN8gVdjG35vTvTTkH:qPE08FvVdEB0f/pN8IavTcH

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/q0iUEtJS
download_payload
false
install
false
pin_spread
false
usb_spread
false

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

WindowsDriversUp.exe

pid process

4104 WindowsDriversUp.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

21 pastebin.com
22 pastebin.com

pid	process
4104	WindowsDriversUp.exe

flow	ioc
21	pastebin.com
22	pastebin.com

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

WindowsDriversUp.exee8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	WindowsDriversUp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	WindowsDriversUp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exeschtasks.exeWindowsDriversUp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsDriversUp.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

1068 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WindowsDriversUp.exe

description pid process

Token: SeDebugPrivilege 4104 WindowsDriversUp.exe
Token: SeDebugPrivilege 4104 WindowsDriversUp.exe

pid	process
1068	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4104	WindowsDriversUp.exe
Token: SeDebugPrivilege	4104	WindowsDriversUp.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe

description	pid	process	target process
PID 1340 wrote to memory of 1068	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	schtasks.exe
PID 1340 wrote to memory of 1068	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	schtasks.exe
PID 1340 wrote to memory of 1068	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	schtasks.exe
PID 1340 wrote to memory of 4104	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	WindowsDriversUp.exe
PID 1340 wrote to memory of 4104	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	WindowsDriversUp.exe
PID 1340 wrote to memory of 4104	1340	e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe	WindowsDriversUp.exe

C:\Users\Admin\AppData\Local\Temp\e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e8bddd761801f872c60619074a3b32c3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\WindowsDriversUp.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1068
- C:\Users\Admin\AppData\Local\Temp\WindowsDriversUp.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsDriversUp.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
185KB

MD5
e8bddd761801f872c60619074a3b32c3

SHA1
e4e29f5ba3310e9e182f5d44c75b5a33424dfaef

SHA256
c1e36a1edfbf3dcc0ed8b7ef724869cd60866b5690244534057294e16950856c

SHA512
119a0f2838106bd7665b16f352f78f6bb5e6821c0b409a01fb191c0b23069ecec7eae395c380e5ab4b1f1d3ed909a77e0a058f95b75b2c3cf1c5d36a39e1ea7a

Download Submit
memory/1340-17-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/1340-1-0x0000000000D80000-0x0000000000DB6000-memory.dmp

Filesize
216KB

Download
memory/1340-3-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/1340-4-0x0000000007880000-0x00000000078E6000-memory.dmp

Filesize
408KB

Download
memory/1340-5-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/1340-6-0x0000000008460000-0x0000000008A04000-memory.dmp

Filesize
5.6MB

Download
memory/1340-2-0x00000000077E0000-0x000000000787C000-memory.dmp

Filesize
624KB

Download
memory/1340-0-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/4104-19-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-18-0x0000000000F90000-0x0000000000FC6000-memory.dmp

Filesize
216KB

Download
memory/4104-20-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-21-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-22-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-23-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-24-0x0000000074930000-0x00000000750E0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads