limerat | d762f88a335c8b288c249af52c6da817907d0516ac0ad552eb1fec4026a909a3

General

Target

eb65dd5e10d4e6ef4dde08b94bde75a0N.exe
Size

28KB
MD5

eb65dd5e10d4e6ef4dde08b94bde75a0
SHA1

ed2cc4bd33c911e0f99e78fc91075cae1209b6d9
SHA256

d762f88a335c8b288c249af52c6da817907d0516ac0ad552eb1fec4026a909a3
SHA512

88bdd31888b4ce3862e1948ed9dc8e773c9fbabb383bf383f01f0017ae9105df0e323e11cde4906d128c577adc62e4ab896ef476c2914633e591e819f953862c
SSDEEP

384:AE0WnRVBLVAmtJpoIhfa/hJiYxJ20CnRGjlDFovDuNrCeJE3WN5igcJqdePLKhez:dpbEIhiJJF20CRGJJmk5NE7I0Dd6+Y

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Wallets

3NyQXs1rAdaWtGUJixrgiuMMJe6eWi1Ydw

Attributes

aes_key
MINOKO
antivm
true
c2_url
https://pastebin.com/raw/9J0FTCCj
delay
3
download_payload
false
install
true
install_name
Wservices.exe
main_folder
Temp
pin_spread
true
sub_folder
\
usb_spread
false

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/9J0FTCCj
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe

Executes dropped EXE 1 IoCs

pid	Process
4944	Wservices.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
19	pastebin.com
50	pastebin.com
18	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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Wservices.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Wservices.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe

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

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wservices.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

pid	Process
3184	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	Wservices.exe
Token: SeDebugPrivilege	4944	Wservices.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 3184	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	99
PID 1944 wrote to memory of 3184	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	99
PID 1944 wrote to memory of 3184	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	99
PID 1944 wrote to memory of 4944	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	101
PID 1944 wrote to memory of 4944	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	101
PID 1944 wrote to memory of 4944	1944	eb65dd5e10d4e6ef4dde08b94bde75a0N.exe	101

C:\Users\Admin\AppData\Local\Temp\eb65dd5e10d4e6ef4dde08b94bde75a0N.exe
"C:\Users\Admin\AppData\Local\Temp\eb65dd5e10d4e6ef4dde08b94bde75a0N.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Wservices.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3184
- C:\Users\Admin\AppData\Local\Temp\Wservices.exe
  "C:\Users\Admin\AppData\Local\Temp\Wservices.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4400,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8
1⤵
PID:948

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

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\Local\Temp\Wservices.exe

Filesize
28KB

MD5
eb65dd5e10d4e6ef4dde08b94bde75a0

SHA1
ed2cc4bd33c911e0f99e78fc91075cae1209b6d9

SHA256
d762f88a335c8b288c249af52c6da817907d0516ac0ad552eb1fec4026a909a3

SHA512
88bdd31888b4ce3862e1948ed9dc8e773c9fbabb383bf383f01f0017ae9105df0e323e11cde4906d128c577adc62e4ab896ef476c2914633e591e819f953862c

Download Submit
memory/1944-3-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/1944-2-0x0000000005620000-0x00000000056BC000-memory.dmp

Filesize
624KB

Download
memory/1944-0-0x000000007448E000-0x000000007448F000-memory.dmp

Filesize
4KB

Download
memory/1944-4-0x0000000074480000-0x0000000074C30000-memory.dmp

Filesize
7.7MB

Download
memory/1944-5-0x0000000006420000-0x00000000069C4000-memory.dmp

Filesize
5.6MB

Download
memory/1944-1-0x0000000000C90000-0x0000000000C9C000-memory.dmp

Filesize
48KB

Download
memory/1944-15-0x0000000074480000-0x0000000074C30000-memory.dmp

Filesize
7.7MB

Download
memory/4944-16-0x0000000074480000-0x0000000074C30000-memory.dmp

Filesize
7.7MB

Download
memory/4944-17-0x0000000074480000-0x0000000074C30000-memory.dmp

Filesize
7.7MB

Download
memory/4944-18-0x0000000005510000-0x00000000055A2000-memory.dmp

Filesize
584KB

Download
memory/4944-19-0x0000000074480000-0x0000000074C30000-memory.dmp

Filesize
7.7MB

Download
memory/4944-20-0x0000000074480000-0x0000000074C30000-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