limerat | b40b35a8c561d796e8a538011d8958b6e1c47bae5facdbfefb1c6e46d7124ff7

Reason

Machine shutdown

General

Target

954971e1c8396ce56c5d464452875100N.exe
Size

472KB
MD5

954971e1c8396ce56c5d464452875100
SHA1

86d2397020879e121f593f00643be26868400fab
SHA256

b40b35a8c561d796e8a538011d8958b6e1c47bae5facdbfefb1c6e46d7124ff7
SHA512

e2ebd1e33dd47bfbf74fbf05aa1ed69998a2a6136eb894ce0fcb6005f7b6748bf5229c0395d846d58ebc247587732bd0f228d411049a79f2299f9aef9b3fa258
SSDEEP

12288:O8Tq6SC6h4pLz/EEezAClaFvg5o/Yoqki2ToKI2pFd3/FmkR2iN/2iN7f:zzJCAOfghb1J1

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
1177
antivm
false
c2_url
https://pastebin.com/raw/aFY6pbYR
delay
3
download_payload
false
install
true
install_name
serviice.exe
main_folder
AppData
pin_spread
false
sub_folder
\
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:

954971e1c8396ce56c5d464452875100N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	954971e1c8396ce56c5d464452875100N.exe

Executes dropped EXE 1 IoCs

Processes:

serviice.exe

pid process

4796 serviice.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service
T1102

Processes:

flow ioc

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4068 4796 WerFault.exe serviice.exe

pid	process
4796	serviice.exe

flow	ioc
15	pastebin.com

pid	pid_target	process	target process
4068	4796	WerFault.exe	serviice.exe

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:

954971e1c8396ce56c5d464452875100N.exeschtasks.exeserviice.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	954971e1c8396ce56c5d464452875100N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	serviice.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

4312 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

serviice.exe

description pid process

Token: SeDebugPrivilege 4796 serviice.exe
Token: SeDebugPrivilege 4796 serviice.exe

pid	process
4312	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4796	serviice.exe
Token: SeDebugPrivilege	4796	serviice.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

954971e1c8396ce56c5d464452875100N.exe

description	pid	process	target process
PID 4448 wrote to memory of 4312	4448	954971e1c8396ce56c5d464452875100N.exe	schtasks.exe
PID 4448 wrote to memory of 4312	4448	954971e1c8396ce56c5d464452875100N.exe	schtasks.exe
PID 4448 wrote to memory of 4312	4448	954971e1c8396ce56c5d464452875100N.exe	schtasks.exe
PID 4448 wrote to memory of 4796	4448	954971e1c8396ce56c5d464452875100N.exe	serviice.exe
PID 4448 wrote to memory of 4796	4448	954971e1c8396ce56c5d464452875100N.exe	serviice.exe
PID 4448 wrote to memory of 4796	4448	954971e1c8396ce56c5d464452875100N.exe	serviice.exe

C:\Users\Admin\AppData\Local\Temp\954971e1c8396ce56c5d464452875100N.exe
"C:\Users\Admin\AppData\Local\Temp\954971e1c8396ce56c5d464452875100N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\serviice.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4312
- C:\Users\Admin\AppData\Roaming\serviice.exe
  "C:\Users\Admin\AppData\Roaming\serviice.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4796
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 1120
    3⤵
    - Program crash
    PID:4068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4796 -ip 4796
1⤵
PID:4136

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

Query Registry

1

T1012

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

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

Filesize
472KB

MD5
954971e1c8396ce56c5d464452875100

SHA1
86d2397020879e121f593f00643be26868400fab

SHA256
b40b35a8c561d796e8a538011d8958b6e1c47bae5facdbfefb1c6e46d7124ff7

SHA512
e2ebd1e33dd47bfbf74fbf05aa1ed69998a2a6136eb894ce0fcb6005f7b6748bf5229c0395d846d58ebc247587732bd0f228d411049a79f2299f9aef9b3fa258

Download Submit
memory/4448-0-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download
memory/4448-1-0x0000000000A50000-0x0000000000ACC000-memory.dmp

Filesize
496KB

Download
memory/4448-2-0x0000000005460000-0x00000000054FC000-memory.dmp

Filesize
624KB

Download
memory/4448-3-0x00000000053F0000-0x0000000005412000-memory.dmp

Filesize
136KB

Download
memory/4448-4-0x00000000053C0000-0x00000000053E6000-memory.dmp

Filesize
152KB

Download
memory/4448-5-0x0000000005630000-0x0000000005696000-memory.dmp

Filesize
408KB

Download
memory/4448-6-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download
memory/4448-9-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download
memory/4448-21-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download
memory/4796-22-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download
memory/4796-23-0x00007FFDB7B90000-0x00007FFDB7D85000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads