limerat | 73536c89f6d0063c32c17294ae8aedd69b75fc9b5adb6848749a0b811241ea8e

General

Target

678a836b41b132da287f0da90e822480.jar
Size

166KB
MD5

678a836b41b132da287f0da90e822480
SHA1

d4eec0106a8fffcb9c850ba515b18a84c42f7973
SHA256

73536c89f6d0063c32c17294ae8aedd69b75fc9b5adb6848749a0b811241ea8e
SHA512

221a6dbf894d8b58f1a4357df8e774b13783ad08d805b48df0ce57dbd9579118f49fe1248ea023711d2684a650d02a4789f50d6ca6986e71fd7857fed0f3aec4
SSDEEP

3072:O2OP/lXyajtcnHLEt+UUN3VEggvwMoGc6OFULv3rFLZmVjDBEDmhIJLPcaZMXpFd:ny/liajqnHLEt+lVEg25o16OCLRl2DqC

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/G9wX4J5m
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 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exeWScript.exeNew-Client.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	New-Client.exe

Executes dropped EXE 2 IoCs

Processes:

New-Client.exeplayer.exe

pid process

2568 New-Client.exe
4732 player.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4156 icacls.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

pid	process
2568	New-Client.exe
4732	player.exe

pid	process
4156	icacls.exe

Drops file in Program Files directory 12 IoCs

Processes:

javaw.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb	javaw.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

3156 schtasks.exe
Modifies registry class 1 IoCs

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\Local Settings wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

player.exe

description pid process

Token: SeDebugPrivilege 4732 player.exe
Token: SeDebugPrivilege 4732 player.exe

pid	process
3156	schtasks.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\Local Settings	wscript.exe

description	pid	process
Token: SeDebugPrivilege	4732	player.exe
Token: SeDebugPrivilege	4732	player.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

java.exewscript.exeWScript.exeNew-Client.exe

description	pid	process	target process
PID 4600 wrote to memory of 4156	4600	java.exe	icacls.exe
PID 4600 wrote to memory of 4156	4600	java.exe	icacls.exe
PID 4600 wrote to memory of 4084	4600	java.exe	wscript.exe
PID 4600 wrote to memory of 4084	4600	java.exe	wscript.exe
PID 4084 wrote to memory of 3388	4084	wscript.exe	WScript.exe
PID 4084 wrote to memory of 3388	4084	wscript.exe	WScript.exe
PID 4084 wrote to memory of 2856	4084	wscript.exe	javaw.exe
PID 4084 wrote to memory of 2856	4084	wscript.exe	javaw.exe
PID 3388 wrote to memory of 2568	3388	WScript.exe	New-Client.exe
PID 3388 wrote to memory of 2568	3388	WScript.exe	New-Client.exe
PID 3388 wrote to memory of 2568	3388	WScript.exe	New-Client.exe
PID 2568 wrote to memory of 3156	2568	New-Client.exe	schtasks.exe
PID 2568 wrote to memory of 3156	2568	New-Client.exe	schtasks.exe
PID 2568 wrote to memory of 3156	2568	New-Client.exe	schtasks.exe
PID 2568 wrote to memory of 4732	2568	New-Client.exe	player.exe
PID 2568 wrote to memory of 4732	2568	New-Client.exe	player.exe
PID 2568 wrote to memory of 4732	2568	New-Client.exe	player.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\678a836b41b132da287f0da90e822480.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Windows\SYSTEM32\wscript.exe
  wscript C:\Users\Admin\ddowgooevv.js
  2⤵
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4084
- - C:\Program Files\Java\jre-1.8\bin\javaw.exe
    "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\rulrquxbxx.txt"
    3⤵
    - Drops file in Program Files directory
    PID:2856
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\wgQDzEaaot.js"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:3388
- C:\Windows\system32\icacls.exe
  C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
  2⤵
  - Modifies file permissions
  PID:4156

C:\Users\Admin\AppData\Roaming\New-Client.exe
"C:\Users\Admin\AppData\Roaming\New-Client.exe"
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\player.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:3156
- C:\Users\Admin\AppData\Roaming\player.exe
  "C:\Users\Admin\AppData\Roaming\player.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

File and Directory Permissions Modification

1

T1222

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
035ccf1bef2a15d762225b13cbefe1c9

SHA1
72c84c81ddf6a185625253afdaa21662dcea3774

SHA256
19b069aa53d951438229a508831f9e2fc7814136d13878e0ddbce0eb354aecc4

SHA512
ee102c3f27d3aa425972bc2aabf2dfd7b5b24c6f42c1d352d38aeed2e685e18d0e9fe552a5bb417bee76c5d9a440b8a3fe759eec828325b29d225217cb9d32d7

Download Submit
C:\Users\Admin\AppData\Roaming\New-Client.exe

Filesize
28KB

MD5
1ad564a6ca1520e8886faffc4e0ff1d4

SHA1
7d3b61daef1afed73838351dbf788448cf88d031

SHA256
2c3a771c2ecbd58409c3f348220c5d9419901e882c61531b68e07b80eb0d3df4

SHA512
b54d6cb92876546c38503e5e673d765f2e323246f5adbaefa83cdc62af6a462d117d3dc183666f902a84575590aa02f94d9997e7783e6f99050c57a710fab441

Download Submit
C:\Users\Admin\AppData\Roaming\rulrquxbxx.txt

Filesize
64KB

MD5
4ba645586c7a9a3eb998cf5a8238104b

SHA1
db7acef39adbc260eea6d728e4811c6b0c2f8a73

SHA256
b06f08da6734add59c3a3ccea97d4f1e12e70903f583e2647ef69c7e26924b2f

SHA512
07e647733efd6c798de0fcb61dbbea349251960384b68ab2d90e365696e98a6bc593cbb8e1bc000e47fecfa9a891f23f43c1ea65b829c9d4ce60158ffa28a0cb

Download Submit
C:\Users\Admin\AppData\Roaming\wgQDzEaaot.js

Filesize
53KB

MD5
34257f43cd09bb9f9aa171b8d5d40d15

SHA1
2205fc3296c2fa97706700c4e6d6f7ef1f185892

SHA256
8b2a8b2e8d7b89e72c2fbdbb79596f9d4dcc0a4304c566ee26bd5b966a099568

SHA512
b16feb70bddc57e556be7db50242a50a600e4775d6a64af64be2d25c055e2e7d0bf292b9c318ff1ddfd9d994995b2f27e47e22b216e864e39d579560ba8c9b08

Download Submit
C:\Users\Admin\ddowgooevv.js

Filesize
280KB

MD5
aaafafd3890c93c59000316f96108b99

SHA1
5fba17bdc35acbb86e1cb63ea443553770552214

SHA256
36664de87581e5777c3c975ad9e430ce8ac2ff80c24b565d7b40aaba75106727

SHA512
a18aa97f92d612ba6c383cec57f88f5e1097171222db1eccfaff0e35019832d80f3adeb88097525b9658c950e44c461e73c4136c24b081844e4dcda37cf38543

Download Submit
memory/2568-42-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/2568-41-0x0000000001410000-0x0000000001420000-memory.dmp

Filesize
64KB

Download
memory/2568-63-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/2856-43-0x0000010969CF0000-0x0000010969CF1000-memory.dmp

Filesize
4KB

Download
memory/2856-48-0x000001096B4F0000-0x000001096C4F0000-memory.dmp

Filesize
16.0MB

Download
memory/2856-52-0x000001096B780000-0x000001096B790000-memory.dmp

Filesize
64KB

Download
memory/2856-53-0x000001096B790000-0x000001096B7A0000-memory.dmp

Filesize
64KB

Download
memory/2856-51-0x000001096B770000-0x000001096B780000-memory.dmp

Filesize
64KB

Download
memory/2856-31-0x000001096B4F0000-0x000001096C4F0000-memory.dmp

Filesize
16.0MB

Download
memory/2856-66-0x000001096B4F0000-0x000001096C4F0000-memory.dmp

Filesize
16.0MB

Download
memory/4600-14-0x000001F1929C0000-0x000001F1929C1000-memory.dmp

Filesize
4KB

Download
memory/4600-4-0x000001F1929E0000-0x000001F1939E0000-memory.dmp

Filesize
16.0MB

Download
memory/4732-65-0x0000000000A20000-0x0000000000A30000-memory.dmp

Filesize
64KB

Download
memory/4732-64-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download
memory/4732-68-0x0000000000A20000-0x0000000000A30000-memory.dmp

Filesize
64KB

Download
memory/4732-67-0x0000000074FB0000-0x0000000075561000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads