limerat | 91963dd82de52d5f3026d723eb654ad9ecfc49622f2c97602fcd5cf05dc79ff5

General

Target

f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe
Size

28KB
MD5

f73d2a6cc30b843a528073f9e89a9474
SHA1

138d45ae3a1a04ca532384966495605bc46a1c84
SHA256

91963dd82de52d5f3026d723eb654ad9ecfc49622f2c97602fcd5cf05dc79ff5
SHA512

c7b7c1313c6a2aaea87469eb3bb6cdd64808cf5fc3c01ea8b6f30f01d38f16dbbd0c2663f3a7e17b27e1b4bc418564f80ed66cc7b424bbda684e6af31ee7ba17
SSDEEP

384:IE0WnRVP3Apm4D8S00sly2icTXvmTX23avDoNrCeJE3WN5s5kzU5MB/ZOVf8Sqla:lP3Iz0f02lXvmD234m5NTUC/2qZY

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
antivm
true
c2_url
https://pastebin.com/raw/bf4enpi6
delay
3
download_payload
false
install
true
install_name
lr.tmp.exe
main_folder
Temp
pin_spread
false
sub_folder
\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/bf4enpi6
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

Executes dropped EXE 1 IoCs

pid	Process
2704	lr.tmp.exe

Loads dropped DLL 2 IoCs

pid	Process
2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe
2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe

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

Web Service

T1102

flow	ioc
4	pastebin.com
5	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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	lr.tmp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	lr.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	f73d2a6cc30b843a528073f9e89a9474_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lr.tmp.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
2692	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	lr.tmp.exe
Token: SeDebugPrivilege	2704	lr.tmp.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 2692	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	31
PID 2724 wrote to memory of 2692	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	31
PID 2724 wrote to memory of 2692	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	31
PID 2724 wrote to memory of 2692	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	31
PID 2724 wrote to memory of 2704	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	33
PID 2724 wrote to memory of 2704	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	33
PID 2724 wrote to memory of 2704	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	33
PID 2724 wrote to memory of 2704	2724	f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f73d2a6cc30b843a528073f9e89a9474_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\lr.tmp.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2692
- C:\Users\Admin\AppData\Local\Temp\lr.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\lr.tmp.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2704

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

2

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

\Users\Admin\AppData\Local\Temp\lr.tmp.exe

Filesize
28KB

MD5
f73d2a6cc30b843a528073f9e89a9474

SHA1
138d45ae3a1a04ca532384966495605bc46a1c84

SHA256
91963dd82de52d5f3026d723eb654ad9ecfc49622f2c97602fcd5cf05dc79ff5

SHA512
c7b7c1313c6a2aaea87469eb3bb6cdd64808cf5fc3c01ea8b6f30f01d38f16dbbd0c2663f3a7e17b27e1b4bc418564f80ed66cc7b424bbda684e6af31ee7ba17

Download Submit
memory/2704-12-0x0000000000830000-0x000000000083C000-memory.dmp

Filesize
48KB

Download
memory/2704-14-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-15-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-17-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-18-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2724-1-0x0000000000850000-0x000000000085C000-memory.dmp

Filesize
48KB

Download
memory/2724-13-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-16-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads