limerat | db98339871559b86da0d442803cc11f1a8e7514fe0008ad85a354fe97e977f46

General

Target

JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Size

126KB
MD5

1a669cd4cd5a411751ea402f18f5cd74
SHA1

e25b5bfc127147425a04a1fc553d12a1235814f6
SHA256

db98339871559b86da0d442803cc11f1a8e7514fe0008ad85a354fe97e977f46
SHA512

26f87e1815a824f589f1d4f4adf6f6fb417e68e8b03c4c8725ff3fff3a21ee357dbbed76a10d5bb59ad7304b4ed124f0c1f62bf704e5bf0072989933f550a0c2
SSDEEP

768:dQI4VAn8vS/r1w6A2j5CGXRFxlz+44duYW0238mB1o6GBDwGsL+8r5Li99Vq7fBN:aax/r1V/5fPW4mud02MTrl8lO9C7p

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/eQHEgJeL
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
Limerat family
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe

Executes dropped EXE 1 IoCs

pid	Process
1516	NetFramework.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
39	pastebin.com
40	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	NetFramework.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	NetFramework.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NetFramework.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

pid	Process
632	schtasks.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Token: 33	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Token: SeIncBasePriorityPrivilege	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
Token: SeDebugPrivilege	1516	NetFramework.exe
Token: 33	1516	NetFramework.exe
Token: SeIncBasePriorityPrivilege	1516	NetFramework.exe
Token: SeDebugPrivilege	1516	NetFramework.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 632	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	91
PID 2904 wrote to memory of 632	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	91
PID 2904 wrote to memory of 632	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	91
PID 2904 wrote to memory of 1516	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	93
PID 2904 wrote to memory of 1516	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	93
PID 2904 wrote to memory of 1516	2904	JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a669cd4cd5a411751ea402f18f5cd74.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\NetFramework.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:632
- C:\Users\Admin\AppData\Roaming\NetFramework.exe
  "C:\Users\Admin\AppData\Roaming\NetFramework.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1516

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\NetFramework.exe

Filesize
126KB

MD5
1a669cd4cd5a411751ea402f18f5cd74

SHA1
e25b5bfc127147425a04a1fc553d12a1235814f6

SHA256
db98339871559b86da0d442803cc11f1a8e7514fe0008ad85a354fe97e977f46

SHA512
26f87e1815a824f589f1d4f4adf6f6fb417e68e8b03c4c8725ff3fff3a21ee357dbbed76a10d5bb59ad7304b4ed124f0c1f62bf704e5bf0072989933f550a0c2

Download Submit
memory/1516-16-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/1516-20-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/1516-19-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/1516-18-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/1516-17-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/1516-15-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2904-3-0x0000000075492000-0x0000000075493000-memory.dmp

Filesize
4KB

Download
memory/2904-14-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2904-4-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2904-0-0x0000000075492000-0x0000000075493000-memory.dmp

Filesize
4KB

Download
memory/2904-2-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2904-1-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads