limerat | 4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7

General

Target

4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe
Size

45KB
MD5

b3ee5177a2d8f561e817216248df4be6
SHA1

5a720e7fb69c4ed08aebe6dfcd64a72387dccfea
SHA256

4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7
SHA512

54ab75116ec57e84c9c78e62f0a7348bfb38f5f8374773f7dcf54fdf09430a16718dbcdd3c8fbee48864a91695a6896d376cef8f83db7c8604859eb2ed37503d
SSDEEP

768:tpuZ6lVw967Y6t945NBSFKsGjkBllutx0OrxU2yJIfFx1rE+sWUKR:tpNVw9WYQKFSFWKlsx0MxdtfFxalWUKR

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
111
antivm
false
c2_url
https://pastebin.com/raw/DDTVwwbu
delay
3
download_payload
false
install
true
install_name
AugustusCrack.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/DDTVwwbu
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:

4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe

Executes dropped EXE 1 IoCs

Processes:

AugustusCrack.exe

pid process

432 AugustusCrack.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

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

System Information Discovery
T1082

pid	process
432	AugustusCrack.exe

flow	ioc
20	pastebin.com
21	pastebin.com

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exeschtasks.exeAugustusCrack.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AugustusCrack.exe

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

2820 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

AugustusCrack.exe

description pid process

Token: SeDebugPrivilege 432 AugustusCrack.exe
Token: SeDebugPrivilege 432 AugustusCrack.exe

pid	process
2820	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	432	AugustusCrack.exe
Token: SeDebugPrivilege	432	AugustusCrack.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe

description	pid	process	target process
PID 4928 wrote to memory of 2820	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	schtasks.exe
PID 4928 wrote to memory of 2820	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	schtasks.exe
PID 4928 wrote to memory of 2820	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	schtasks.exe
PID 4928 wrote to memory of 432	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	AugustusCrack.exe
PID 4928 wrote to memory of 432	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	AugustusCrack.exe
PID 4928 wrote to memory of 432	4928	4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe	AugustusCrack.exe

C:\Users\Admin\AppData\Local\Temp\4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe
"C:\Users\Admin\AppData\Local\Temp\4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\AugustusCrack.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2820
- C:\Users\Admin\AppData\Roaming\AugustusCrack.exe
  "C:\Users\Admin\AppData\Roaming\AugustusCrack.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AugustusCrack.exe

Filesize
45KB

MD5
b3ee5177a2d8f561e817216248df4be6

SHA1
5a720e7fb69c4ed08aebe6dfcd64a72387dccfea

SHA256
4bf4690394918fff74afb01f7296b47ce21e82997df360024d47d2c6d4cb65c7

SHA512
54ab75116ec57e84c9c78e62f0a7348bfb38f5f8374773f7dcf54fdf09430a16718dbcdd3c8fbee48864a91695a6896d376cef8f83db7c8604859eb2ed37503d

Download Submit
memory/432-15-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/432-17-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/432-18-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/432-19-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4928-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4928-1-0x0000000000E80000-0x0000000000E92000-memory.dmp

Filesize
72KB

Download
memory/4928-2-0x0000000005870000-0x000000000590C000-memory.dmp

Filesize
624KB

Download
memory/4928-3-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/4928-4-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4928-5-0x0000000006630000-0x0000000006BD4000-memory.dmp

Filesize
5.6MB

Download
memory/4928-16-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads