limerat | bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

General

Target

440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
Size

238KB
MD5

440d7a7357b48507cbf9857064638dfd
SHA1

fbf4d41cc343cb260d0c320ade3c1271959d6eba
SHA256

bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3
SHA512

ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c
SSDEEP

3072:zTZ5rlD8r5Yg3g7xnyfKUze1zF9Olhc7tmtpsJpQuTejgu3nypr/7Rioqz5HKd/z:zTyYg3AnySQcWlqi1ERio6q2U

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

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/p8Be8nNX
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 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

Windows Update.exeWindows Update.exe

pid process

2776 Windows Update.exe
3380 Windows Update.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

12 pastebin.com
11 pastebin.com

pid	process
2776	Windows Update.exe
3380	Windows Update.exe

flow	ioc
12	pastebin.com
11	pastebin.com

Suspicious use of SetThreadContext 2 IoCs

Processes:

440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exeWindows Update.exe

description	pid	process	target process
PID 852 set thread context of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 2776 set thread context of 3380	2776	Windows Update.exe	Windows Update.exe

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

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

3020 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Windows Update.exe

description pid process

Token: SeDebugPrivilege 3380 Windows Update.exe
Token: SeDebugPrivilege 3380 Windows Update.exe

pid	process
3020	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	3380	Windows Update.exe
Token: SeDebugPrivilege	3380	Windows Update.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exeWindows Update.exe

description	pid	process	target process
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 852 wrote to memory of 2096	852	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
PID 2096 wrote to memory of 3020	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	schtasks.exe
PID 2096 wrote to memory of 3020	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	schtasks.exe
PID 2096 wrote to memory of 3020	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	schtasks.exe
PID 2096 wrote to memory of 2776	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	Windows Update.exe
PID 2096 wrote to memory of 2776	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	Windows Update.exe
PID 2096 wrote to memory of 2776	2096	440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe
PID 2776 wrote to memory of 3380	2776	Windows Update.exe	Windows Update.exe

C:\Users\Admin\AppData\Local\Temp\440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:852

C:\Users\Admin\AppData\Local\Temp\440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2096

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Windows\Windows Update.exe'"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:3020

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:2776

C:\Users\Admin\Windows\Windows Update.exe
"C:\Users\Admin\Windows\Windows Update.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3380

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\440d7a7357b48507cbf9857064638dfd_JaffaCakes118.exe.log
Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\Windows\Windows Update.exe
Filesize
238KB

MD5
440d7a7357b48507cbf9857064638dfd

SHA1
fbf4d41cc343cb260d0c320ade3c1271959d6eba

SHA256
bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

SHA512
ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

Download Submit
memory/852-2-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/852-3-0x0000000002740000-0x0000000002748000-memory.dmp

Filesize
32KB

Download
memory/852-1-0x0000000000320000-0x0000000000362000-memory.dmp

Filesize
264KB

Download
memory/852-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/852-8-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2096-9-0x00000000001F0000-0x00000000001FC000-memory.dmp

Filesize
48KB

Download
memory/2096-10-0x0000000004970000-0x0000000004A0C000-memory.dmp

Filesize
624KB

Download
memory/2096-7-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2096-12-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2096-13-0x0000000005610000-0x0000000005BB4000-memory.dmp

Filesize
5.6MB

Download
memory/2096-11-0x0000000004A10000-0x0000000004A76000-memory.dmp

Filesize
408KB

Download
memory/2096-32-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2776-25-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2776-26-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2776-31-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads