limerat | fc790cea14d04d9090ab085b585a8017ad469ebbce5c9d29c8d877ccf9e3efbf

General

Target

bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe
Size

61KB
MD5

bb2de5629dfeb812b45fb00a6fbadf4e
SHA1

e3a3642264eae88eba72c67933057f2dfc2dd2b6
SHA256

fc790cea14d04d9090ab085b585a8017ad469ebbce5c9d29c8d877ccf9e3efbf
SHA512

3d3a250e9c6ca842daf90d9b666796dc7e8cebce83ed3ab972db052f60fc70418c7aa3f45f45b0ab61f63e7621d147620f20734bc8556e6d614c49abb7eba28d
SSDEEP

1536:2qGaT/1sMrcvwms7Glz0DKVLcBCAGLq1ZjTj:2qRaMrUwmuvDWLcBCAGL8j

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

1d15EibWVaZg8KADH1wR5phqhtyhbbdCc

Attributes

aes_key
batata1
antivm
true
c2_url
https://pastebin.com/raw/hqkeiAWx
delay
3
download_payload
false
install
true
install_name
twvrsvc.exe
main_folder
AppData
pin_spread
false
sub_folder
\TeamViewer\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/hqkeiAWx
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 2 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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	tvsxwrc.exe
Key value queried	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

pid	Process
2692	tvsxwrc.exe
2760	Cure Tool.exe
2676	twvrsvc.exe

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

Web Service

T1102

flow	ioc
22	pastebin.com
23	pastebin.com

Maps connected drives based on registry 3 TTPs 4 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	tvsxwrc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	tvsxwrc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	twvrsvc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	twvrsvc.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 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
1544	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	twvrsvc.exe
Token: SeDebugPrivilege	2676	twvrsvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 2692	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	88
PID 3968 wrote to memory of 2692	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	88
PID 3968 wrote to memory of 2692	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	88
PID 3968 wrote to memory of 2760	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	89
PID 3968 wrote to memory of 2760	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	89
PID 3968 wrote to memory of 2760	3968	bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe	89
PID 2692 wrote to memory of 1544	2692	tvsxwrc.exe	96
PID 2692 wrote to memory of 1544	2692	tvsxwrc.exe	96
PID 2692 wrote to memory of 1544	2692	tvsxwrc.exe	96
PID 2692 wrote to memory of 2676	2692	tvsxwrc.exe	98
PID 2692 wrote to memory of 2676	2692	tvsxwrc.exe	98
PID 2692 wrote to memory of 2676	2692	tvsxwrc.exe	98

C:\Users\Admin\AppData\Local\Temp\bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bb2de5629dfeb812b45fb00a6fbadf4e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Users\Admin\AppData\Local\Temp\tvsxwrc.exe
  "C:\Users\Admin\AppData\Local\Temp\tvsxwrc.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\TeamViewer\twvrsvc.exe'"
    3⤵
    - Creates scheduled task(s)
    PID:1544
- - C:\Users\Admin\AppData\Roaming\TeamViewer\twvrsvc.exe
    "C:\Users\Admin\AppData\Roaming\TeamViewer\twvrsvc.exe"
    3⤵
    - Executes dropped EXE
    - Maps connected drives based on registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2676
- C:\Users\Admin\AppData\Local\Temp\Cure Tool.exe
  "C:\Users\Admin\AppData\Local\Temp\Cure Tool.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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\Temp\Cure Tool.exe

Filesize
9KB

MD5
7658c455f3acdc2b574da9f863855f01

SHA1
c05e0e3ccfb01bec9e6e4f8592fc21fe8a991b32

SHA256
8d0ab3ac5f70ab0d16c1c3f1f66e4580e4116175d30bece8b14514858c9174dc

SHA512
7325535c7228542cecf43c2042dd07caee54d8f61a49ea5750508f7ed27ad0f5b24c62a023c0c8f675bb8c077720d60565338ce10754ae098ec7d47bf3f83730

Download Submit
C:\Users\Admin\AppData\Local\Temp\tvsxwrc.exe

Filesize
28KB

MD5
7374806e51b404de9c639cbff4226eed

SHA1
6c7466e48018fa00ccf53a24615448117697f494

SHA256
5963297e6660586d55779912944414ca8e5ccdf2769419b779e145d5fc597c9f

SHA512
5c29c8c16be3a46cf64997fda0810953fa16c3f53fd8f7979e80a97849e23e36baca1cf84cf84a1404b55cbde8543c3d740c9397da576738a14c64a9962f00f7

Download Submit
memory/2676-38-0x0000000006200000-0x0000000006292000-memory.dmp

Filesize
584KB

Download
memory/2692-37-0x0000000073340000-0x0000000073AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-18-0x000000007334E000-0x000000007334F000-memory.dmp

Filesize
4KB

Download
memory/2692-21-0x0000000000260000-0x000000000026C000-memory.dmp

Filesize
48KB

Download
memory/2692-22-0x0000000004B70000-0x0000000004C0C000-memory.dmp

Filesize
624KB

Download
memory/2692-24-0x0000000004AF0000-0x0000000004B56000-memory.dmp

Filesize
408KB

Download
memory/2692-25-0x0000000073340000-0x0000000073AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2692-26-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/2760-20-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/2760-23-0x0000000073340000-0x0000000073AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2760-39-0x0000000073340000-0x0000000073AF0000-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