limerat | 6556a3f7322ae73fcecf30dc5ac853c952aba5e1d91cf91d78496919ab377ed3

General

Target

09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe
Size

1.1MB
MD5

09207b17856243f5db24fce5353d5d63
SHA1

68c750485959e707adc2a613347215e72ece2354
SHA256

6556a3f7322ae73fcecf30dc5ac853c952aba5e1d91cf91d78496919ab377ed3
SHA512

6083692488706c84072875c742f86b0fec00bb467f9e04a43135c6bd954ad595da2e9582aa5a63cdce1a0abe1160fcb4c25562152e2d8840b7527ad97113c964
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 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

09207b17856243f5db24fce5353d5d63_JaffaCakes118.exesdchange.exesdchange.exesdchange.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 3 IoCs

Processes:

sdchange.exesdchange.exesdchange.exe

pid process

4196 sdchange.exe
2324 sdchange.exe
4648 sdchange.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

18 pastebin.com
19 pastebin.com

pid	process
4196	sdchange.exe
2324	sdchange.exe
4648	sdchange.exe

flow	ioc
18	pastebin.com
19	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

Processes:

RegAsm.exe

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.

Processes:

resource	yara_rule
C:\Users\Admin\secinit\sdchange.exe	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

09207b17856243f5db24fce5353d5d63_JaffaCakes118.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 3624 set thread context of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 4196 set thread context of 3572	4196	sdchange.exe	RegAsm.exe
PID 2324 set thread context of 5020	2324	sdchange.exe	RegAsm.exe
PID 4648 set thread context of 4416	4648	sdchange.exe	RegAsm.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 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

1432 schtasks.exe
1720 schtasks.exe
3108 schtasks.exe
1940 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4336 RegAsm.exe
Token: SeDebugPrivilege 4336 RegAsm.exe

pid	process
1432	schtasks.exe
1720	schtasks.exe
3108	schtasks.exe
1940	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4336	RegAsm.exe
Token: SeDebugPrivilege	4336	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

09207b17856243f5db24fce5353d5d63_JaffaCakes118.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 3624 wrote to memory of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 3624 wrote to memory of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 3624 wrote to memory of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 3624 wrote to memory of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 3624 wrote to memory of 4336	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	RegAsm.exe
PID 3624 wrote to memory of 1432	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	schtasks.exe
PID 3624 wrote to memory of 1432	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	schtasks.exe
PID 3624 wrote to memory of 1432	3624	09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe	schtasks.exe
PID 4196 wrote to memory of 3572	4196	sdchange.exe	RegAsm.exe
PID 4196 wrote to memory of 3572	4196	sdchange.exe	RegAsm.exe
PID 4196 wrote to memory of 3572	4196	sdchange.exe	RegAsm.exe
PID 4196 wrote to memory of 3572	4196	sdchange.exe	RegAsm.exe
PID 4196 wrote to memory of 3572	4196	sdchange.exe	RegAsm.exe
PID 4196 wrote to memory of 1720	4196	sdchange.exe	schtasks.exe
PID 4196 wrote to memory of 1720	4196	sdchange.exe	schtasks.exe
PID 4196 wrote to memory of 1720	4196	sdchange.exe	schtasks.exe
PID 2324 wrote to memory of 5020	2324	sdchange.exe	RegAsm.exe
PID 2324 wrote to memory of 5020	2324	sdchange.exe	RegAsm.exe
PID 2324 wrote to memory of 5020	2324	sdchange.exe	RegAsm.exe
PID 2324 wrote to memory of 5020	2324	sdchange.exe	RegAsm.exe
PID 2324 wrote to memory of 5020	2324	sdchange.exe	RegAsm.exe
PID 2324 wrote to memory of 3108	2324	sdchange.exe	schtasks.exe
PID 2324 wrote to memory of 3108	2324	sdchange.exe	schtasks.exe
PID 2324 wrote to memory of 3108	2324	sdchange.exe	schtasks.exe
PID 4648 wrote to memory of 4416	4648	sdchange.exe	RegAsm.exe
PID 4648 wrote to memory of 4416	4648	sdchange.exe	RegAsm.exe
PID 4648 wrote to memory of 4416	4648	sdchange.exe	RegAsm.exe
PID 4648 wrote to memory of 4416	4648	sdchange.exe	RegAsm.exe
PID 4648 wrote to memory of 4416	4648	sdchange.exe	RegAsm.exe
PID 4648 wrote to memory of 1940	4648	sdchange.exe	schtasks.exe
PID 4648 wrote to memory of 1940	4648	sdchange.exe	schtasks.exe
PID 4648 wrote to memory of 1940	4648	sdchange.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\09207b17856243f5db24fce5353d5d63_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3624
- 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:4336
- 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:1432

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:4196
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3572
- 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:1720

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:2324
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:5020
- 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:3108

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:4648
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4416
- 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:1940

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
5743dcb454addd35414e43cdf750178b

SHA1
06d7ebf6f0df3cf58c7f6564295e0ecf8763de06

SHA256
f8a1877ae7017bed4861db93c360672a2c320358076b67c733f4febb6c3ba942

SHA512
2dcf8390243c7c6317bf49cad459e7321d401534ee1eed0836d841ea4c26dd27b14436f9a0d10f35fad69a3f6654b7d8db132011915cd13cc03b6dcf1e593c2f

Download Submit
memory/3624-0-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/4336-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4336-5-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/4336-7-0x0000000002F00000-0x0000000002F10000-memory.dmp

Filesize
64KB

Download
memory/4336-6-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/4336-17-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/4336-18-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/4336-19-0x0000000002F00000-0x0000000002F10000-memory.dmp

Filesize
64KB

Download
memory/5020-21-0x0000000000570000-0x000000000057C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads