limerat | a99f94cf335d13cbd71ad98168f91c6375ac04915162e661d7ade4bca774cc0b

General

Target

New-Client.exe
Size

28KB
MD5

477ce98a3678a3fa62270962d2304eb3
SHA1

70844a960c9f74e256c85bf1f6d98762c9020a93
SHA256

a99f94cf335d13cbd71ad98168f91c6375ac04915162e661d7ade4bca774cc0b
SHA512

6c61244031cc0337b972cea921ea3e06794601e1ebb8a86a5a4a93e1b4b3a8af210e77b10a1648d6c7df552388794bade371f6c8b9f5401dda5b62911e615596
SSDEEP

384:WB+Sbj6NKAxQ6rHAHL03HHMqDdqgDfyEZLvDKNrCeJE3WNgA8X85dkMsIUn2XQre:MpAi6rHwLClqguEl45N75Tk2hj

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Wallets

bc1qj3rdwv02j3lpyjr4j2vjv87ajm5mz0prl8dau5

Attributes

aes_key
katfv
antivm
true
c2_url
https://pastebin.com/raw/Jh43dGvB
delay
3
download_payload
false
install
true
install_name
schtasks.exe
main_folder
Temp
pin_spread
true
sub_folder
\Windows\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/Jh43dGvB
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
Limerat family
limerat

Downloads MZ/PE file 1 IoCs

flow	pid	Process
52	1968	Process not Found

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-1-5-21-1639772215-809007892-4072230623-1000\Control Panel\International\Geo\Nation	New-Client.exe

Executes dropped EXE 1 IoCs

pid	Process
4436	schtasks.exe

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

Web Service

T1102

flow	ioc
19	pastebin.com
20	pastebin.com

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 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New-Client.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1704	MicrosoftEdgeUpdate.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
216	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4436	schtasks.exe
Token: SeDebugPrivilege	4436	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 216	2440	New-Client.exe	90
PID 2440 wrote to memory of 216	2440	New-Client.exe	90
PID 2440 wrote to memory of 216	2440	New-Client.exe	90
PID 2440 wrote to memory of 4436	2440	New-Client.exe	92
PID 2440 wrote to memory of 4436	2440	New-Client.exe	92
PID 2440 wrote to memory of 4436	2440	New-Client.exe	92

C:\Users\Admin\AppData\Local\Temp\New-Client.exe
"C:\Users\Admin\AppData\Local\Temp\New-Client.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\Windows\schtasks.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:216
- C:\Users\Admin\AppData\Local\Temp\Windows\schtasks.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows\schtasks.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4436

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4ODkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTM2NTgwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTU3MjEyMDQ2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1704

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Windows\schtasks.exe

Filesize
28KB

MD5
477ce98a3678a3fa62270962d2304eb3

SHA1
70844a960c9f74e256c85bf1f6d98762c9020a93

SHA256
a99f94cf335d13cbd71ad98168f91c6375ac04915162e661d7ade4bca774cc0b

SHA512
6c61244031cc0337b972cea921ea3e06794601e1ebb8a86a5a4a93e1b4b3a8af210e77b10a1648d6c7df552388794bade371f6c8b9f5401dda5b62911e615596

Download Submit
memory/2440-3-0x0000000004C60000-0x0000000004CC6000-memory.dmp

Filesize
408KB

Download
memory/2440-2-0x0000000004B80000-0x0000000004C1C000-memory.dmp

Filesize
624KB

Download
memory/2440-0-0x000000007404E000-0x000000007404F000-memory.dmp

Filesize
4KB

Download
memory/2440-4-0x0000000074040000-0x00000000747F0000-memory.dmp

Filesize
7.7MB

Download
memory/2440-5-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download
memory/2440-1-0x0000000000210000-0x000000000021C000-memory.dmp

Filesize
48KB

Download
memory/2440-16-0x0000000074040000-0x00000000747F0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-15-0x0000000074040000-0x00000000747F0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-17-0x0000000074040000-0x00000000747F0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-18-0x0000000006E50000-0x0000000006EE2000-memory.dmp

Filesize
584KB

Download
memory/4436-19-0x0000000074040000-0x00000000747F0000-memory.dmp

Filesize
7.7MB

Download
memory/4436-20-0x0000000074040000-0x00000000747F0000-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