limerat | cc30b16e466aeaab0d08eb9452ae46b4a3317deb826ef22898e62f5ef0e5a598

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17-05-2024 06:21

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General

Target

4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe
Size

1.1MB
MD5

4ec653326e753fa16d200e7fea2a4bf4
SHA1

9dedafd15ce239570c762090589742c4d88894c6
SHA256

cc30b16e466aeaab0d08eb9452ae46b4a3317deb826ef22898e62f5ef0e5a598
SHA512

c2639981259d120aca8a178ddab260745ddf0f3d6259fc14745a92f12a27f58a8a2e55178cd554418b43455c1fb4bb3811297bbdcdedb78da21f82b915e8b943
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25E:/h+ZkldoPK8Ya971XjFtAE

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes

aes_key
nulled
antivm
true
c2_url
https://pastebin.com/raw/cXuQ0V20
delay
3
download_payload
false
install
false
install_name
Winservices.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/cXuQ0V20
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 4 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 3 IoCs

pid	Process
3880	sdchange.exe
1952	sdchange.exe
1944	sdchange.exe

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

Web Service

T1102

flow	ioc
23	pastebin.com
24	pastebin.com

Maps connected drives based on registry 3 TTPs 2 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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	RegAsm.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0007000000023419-12.dat	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 3880 set thread context of 3296	3880	sdchange.exe	98
PID 1952 set thread context of 3496	1952	sdchange.exe	105
PID 1944 set thread context of 3276	1944	sdchange.exe	117

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 4 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3496	schtasks.exe
2412	schtasks.exe
840	schtasks.exe
1852	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	RegAsm.exe
Token: SeDebugPrivilege	2564	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 2576 wrote to memory of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 2576 wrote to memory of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 2576 wrote to memory of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 2576 wrote to memory of 2564	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	85
PID 2576 wrote to memory of 3496	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	86
PID 2576 wrote to memory of 3496	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	86
PID 2576 wrote to memory of 3496	2576	4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe	86
PID 3880 wrote to memory of 3296	3880	sdchange.exe	98
PID 3880 wrote to memory of 3296	3880	sdchange.exe	98
PID 3880 wrote to memory of 3296	3880	sdchange.exe	98
PID 3880 wrote to memory of 3296	3880	sdchange.exe	98
PID 3880 wrote to memory of 3296	3880	sdchange.exe	98
PID 3880 wrote to memory of 2412	3880	sdchange.exe	99
PID 3880 wrote to memory of 2412	3880	sdchange.exe	99
PID 3880 wrote to memory of 2412	3880	sdchange.exe	99
PID 1952 wrote to memory of 3496	1952	sdchange.exe	105
PID 1952 wrote to memory of 3496	1952	sdchange.exe	105
PID 1952 wrote to memory of 3496	1952	sdchange.exe	105
PID 1952 wrote to memory of 3496	1952	sdchange.exe	105
PID 1952 wrote to memory of 3496	1952	sdchange.exe	105
PID 1952 wrote to memory of 840	1952	sdchange.exe	106
PID 1952 wrote to memory of 840	1952	sdchange.exe	106
PID 1952 wrote to memory of 840	1952	sdchange.exe	106
PID 1944 wrote to memory of 3276	1944	sdchange.exe	117
PID 1944 wrote to memory of 3276	1944	sdchange.exe	117
PID 1944 wrote to memory of 3276	1944	sdchange.exe	117
PID 1944 wrote to memory of 3276	1944	sdchange.exe	117
PID 1944 wrote to memory of 3276	1944	sdchange.exe	117
PID 1944 wrote to memory of 1852	1944	sdchange.exe	118
PID 1944 wrote to memory of 1852	1944	sdchange.exe	118
PID 1944 wrote to memory of 1852	1944	sdchange.exe	118

C:\Users\Admin\AppData\Local\Temp\4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4ec653326e753fa16d200e7fea2a4bf4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:3496

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3880
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3296
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:2412

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3496
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:840

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3276
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:1852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log

Filesize
316B

MD5
9f893d94b017a0684012d50319c9ffbe

SHA1
140cc2cb6b2520ba4f9a1f666a5f679853472793

SHA256
8a7cb420c82edf1bb2c7bdfef52091e5169fabaecc370e120985e91406fcbbec

SHA512
4b7df94d3622b82d852b0f532d7fd810ca2113d7b737ec417023d5b2142e9e79414a06d22647d73f8bc114f8e871a3a741a479b0aba48892f9078975ec78acba

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
82d92406b661c6d48122a07a8dd98a51

SHA1
23c5eb751e97852fdf82ea00d2533d3d77775331

SHA256
a6c01e730f2292e876a66fd25fd99e0b775aa3a1a7a16caa26dbab7d47d0124e

SHA512
21b7afc6ded70d526e9a4d069e2d677f5345e5fc21818d0a528a3c1811c13509028e45fe0148af0263a1afa98f7516f9db6144bd2850f84957b4673a1811b77d

Download Submit
memory/2564-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2564-5-0x0000000073AC2000-0x0000000073AC3000-memory.dmp

Filesize
4KB

Download
memory/2564-6-0x0000000073AC0000-0x0000000074071000-memory.dmp

Filesize
5.7MB

Download
memory/2564-7-0x0000000073AC0000-0x0000000074071000-memory.dmp

Filesize
5.7MB

Download
memory/2564-10-0x0000000073AC0000-0x0000000074071000-memory.dmp

Filesize
5.7MB

Download
memory/2564-11-0x0000000073AC2000-0x0000000073AC3000-memory.dmp

Filesize
4KB

Download
memory/2564-14-0x0000000073AC0000-0x0000000074071000-memory.dmp

Filesize
5.7MB

Download
memory/2576-3-0x0000000002860000-0x0000000002861000-memory.dmp

Filesize
4KB

Download
memory/3296-15-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/3496-21-0x0000000000730000-0x000000000073C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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