limerat | 56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4

General

Target

56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe
Size

251KB
MD5

d64c663ca513edb1e8ad004a6e6cbb3f
SHA1

a95aa92c2d8a5322421e60d6f108ac54eb907bb7
SHA256

56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4
SHA512

69c06dd77f92fd56c86804417c114e0cc4be9eaa80549dbbec937965c75b7644ce3b90fc7598bb1e9187aeeee1c39d57c51bb4ab2d555ef6ce4482159ec2808a
SSDEEP

6144:O/EDkB/TwAFZe1EB79p1ERueqJwCVqE6Js:OcABrDZe6BD1FhVH

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
IRj3SceatjDfweW/qMMw7g==
antivm
true
c2_url
https://pastebin.com/raw/p8Be8nNX
delay
3
download_payload
false
install
true
install_name
Windows Update.exe
main_folder
UserProfile
pin_spread
false
sub_folder
\Windows\
usb_spread
false

Signatures

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

Executes dropped EXE 2 IoCs

Processes:

Windows Update.exeWindows Update.exe

pid	Process
1876	Windows Update.exe
4884	Windows Update.exe

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:

56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

Processes:

56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exeWindows Update.exe

description	pid	Process	procid_target
PID 1692 set thread context of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1876 set thread context of 4884	1876	Windows Update.exe	98

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

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

T1053

Processes:

schtasks.exe

pid	Process
1868	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Windows Update.exe

description	pid	Process
Token: SeDebugPrivilege	4884	Windows Update.exe
Token: SeDebugPrivilege	4884	Windows Update.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exeWindows Update.exe

description	pid	Process	procid_target
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 1692 wrote to memory of 3660	1692	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	84
PID 3660 wrote to memory of 1868	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	94
PID 3660 wrote to memory of 1868	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	94
PID 3660 wrote to memory of 1868	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	94
PID 3660 wrote to memory of 1876	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	96
PID 3660 wrote to memory of 1876	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	96
PID 3660 wrote to memory of 1876	3660	56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe	96
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98
PID 1876 wrote to memory of 4884	1876	Windows Update.exe	98

C:\Users\Admin\AppData\Local\Temp\56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe
"C:\Users\Admin\AppData\Local\Temp\56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Users\Admin\AppData\Local\Temp\56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe
  "C:\Users\Admin\AppData\Local\Temp\56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3660
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Windows\Windows Update.exe'"
    3⤵
    - Creates scheduled task(s)
    PID:1868
- - C:\Users\Admin\Windows\Windows Update.exe
    "C:\Users\Admin\Windows\Windows Update.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1876
  - - C:\Users\Admin\Windows\Windows Update.exe
      "C:\Users\Admin\Windows\Windows Update.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:4884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Web Service

1

T1102

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Windows Update.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\Windows\Windows Update.exe

Filesize
251KB

MD5
d64c663ca513edb1e8ad004a6e6cbb3f

SHA1
a95aa92c2d8a5322421e60d6f108ac54eb907bb7

SHA256
56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4

SHA512
69c06dd77f92fd56c86804417c114e0cc4be9eaa80549dbbec937965c75b7644ce3b90fc7598bb1e9187aeeee1c39d57c51bb4ab2d555ef6ce4482159ec2808a

Download Submit
C:\Users\Admin\Windows\Windows Update.exe

Filesize
251KB

MD5
d64c663ca513edb1e8ad004a6e6cbb3f

SHA1
a95aa92c2d8a5322421e60d6f108ac54eb907bb7

SHA256
56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4

SHA512
69c06dd77f92fd56c86804417c114e0cc4be9eaa80549dbbec937965c75b7644ce3b90fc7598bb1e9187aeeee1c39d57c51bb4ab2d555ef6ce4482159ec2808a

Download Submit
C:\Users\Admin\Windows\Windows Update.exe

Filesize
251KB

MD5
d64c663ca513edb1e8ad004a6e6cbb3f

SHA1
a95aa92c2d8a5322421e60d6f108ac54eb907bb7

SHA256
56d8a883c8b9d4a2a317f9ea3cb0a3f55281970c804c08f8de6482af04868da4

SHA512
69c06dd77f92fd56c86804417c114e0cc4be9eaa80549dbbec937965c75b7644ce3b90fc7598bb1e9187aeeee1c39d57c51bb4ab2d555ef6ce4482159ec2808a

Download Submit
memory/1692-132-0x0000000000A70000-0x0000000000AB6000-memory.dmp

Filesize
280KB

Download
memory/1868-139-0x0000000000000000-mapping.dmp

Download
memory/1876-140-0x0000000000000000-mapping.dmp

Download
memory/3660-136-0x00000000055E0000-0x000000000567C000-memory.dmp

Filesize
624KB

Download
memory/3660-137-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/3660-138-0x0000000006270000-0x0000000006814000-memory.dmp

Filesize
5.6MB

Download
memory/3660-134-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3660-133-0x0000000000000000-mapping.dmp

Download
memory/4884-143-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads