limerat | 05c772b7839a921008f2773976257df1a0fa02d7be0650f6357c14148fef350e

General

Target

0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe
Size

1.1MB
MD5

0c481e53c5824b63f39960ce0a17c764
SHA1

3449d836a6e5b395696e3e676785ec42d9458b4c
SHA256

05c772b7839a921008f2773976257df1a0fa02d7be0650f6357c14148fef350e
SHA512

59af65cb030c0e9730597047066cff5c4727b466130df3ecfbfb2b22a9b0f3bc11ca8500014c9459fa3196085c024dc23fb0b32656981aae0d4e4dd282a34312
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM258:/h+ZkldoPK8Ya971XjFtA8

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 3 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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 2 IoCs

pid	Process
3620	sdchange.exe
3736	sdchange.exe

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

Web Service

T1102

flow	ioc
27	pastebin.com
28	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/0x000b000000023b8e-12.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 724 set thread context of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 3620 set thread context of 1300	3620	sdchange.exe	101
PID 3736 set thread context of 3768	3736	sdchange.exe	115

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 3 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
432	schtasks.exe
4344	schtasks.exe
1264	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4256	RegAsm.exe
Token: SeDebugPrivilege	4256	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 724 wrote to memory of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 724 wrote to memory of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 724 wrote to memory of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 724 wrote to memory of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 724 wrote to memory of 4256	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	86
PID 724 wrote to memory of 432	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	87
PID 724 wrote to memory of 432	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	87
PID 724 wrote to memory of 432	724	0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe	87
PID 3620 wrote to memory of 1300	3620	sdchange.exe	101
PID 3620 wrote to memory of 1300	3620	sdchange.exe	101
PID 3620 wrote to memory of 1300	3620	sdchange.exe	101
PID 3620 wrote to memory of 1300	3620	sdchange.exe	101
PID 3620 wrote to memory of 1300	3620	sdchange.exe	101
PID 3620 wrote to memory of 4344	3620	sdchange.exe	102
PID 3620 wrote to memory of 4344	3620	sdchange.exe	102
PID 3620 wrote to memory of 4344	3620	sdchange.exe	102
PID 3736 wrote to memory of 3768	3736	sdchange.exe	115
PID 3736 wrote to memory of 3768	3736	sdchange.exe	115
PID 3736 wrote to memory of 3768	3736	sdchange.exe	115
PID 3736 wrote to memory of 3768	3736	sdchange.exe	115
PID 3736 wrote to memory of 3768	3736	sdchange.exe	115
PID 3736 wrote to memory of 1264	3736	sdchange.exe	116
PID 3736 wrote to memory of 1264	3736	sdchange.exe	116
PID 3736 wrote to memory of 1264	3736	sdchange.exe	116

C:\Users\Admin\AppData\Local\Temp\0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0c481e53c5824b63f39960ce0a17c764_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:724
- 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:4256
- 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:432

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:3620
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:1300
- 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:4344

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:3736
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3768
- 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:1264

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

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

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_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
159fc8c93bf1c6f3585d44fbcd3440d1

SHA1
0787a30d1f1df198e502af2cac3e90c6bed9d6cc

SHA256
1a5173472ebd9277175ffd4c6716e1122128453840422cbc5c244869c76d75e7

SHA512
2b051b18ed4335bc527768e0256924836cdfba8f4834ee0746b37b6a973704707f49538be6f2b406ae99da0a0c9d551b7e7efb1109130e0bd7baa0db9326de95

Download Submit
memory/724-0-0x0000000001C20000-0x0000000001C21000-memory.dmp

Filesize
4KB

Download
memory/1300-14-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4256-1-0x00000000005A0000-0x00000000005AC000-memory.dmp

Filesize
48KB

Download
memory/4256-5-0x00000000744A2000-0x00000000744A3000-memory.dmp

Filesize
4KB

Download
memory/4256-6-0x00000000744A0000-0x0000000074A51000-memory.dmp

Filesize
5.7MB

Download
memory/4256-7-0x00000000744A0000-0x0000000074A51000-memory.dmp

Filesize
5.7MB

Download
memory/4256-10-0x00000000744A2000-0x00000000744A3000-memory.dmp

Filesize
4KB

Download
memory/4256-11-0x00000000744A0000-0x0000000074A51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads