limerat | 2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619

General

Target

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Size

126KB
MD5

2dd2f138d0d9e49bacca639357af4481
SHA1

58c94fae547eaad0a94e0be91782eb2338f21be5
SHA256

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619
SHA512

4ee82275fa0f9549624e8fbc1deed9e3d59b147584ebf05946bf1672a10551679427cfd67523c34343502bfae57e455ae53e321c8ce81001b930e8605a79deb8
SSDEEP

768:dQI4VAn8vS/r1w6A2j5CGXRFxlz+44duYW0238mB1o6GBDwGsL+8r5Li99Vq7fBm:aax/r1V/5fPW4mud02MTrl8lO9C7pm

Score

10^/10

limerat discovery rat

Malware Config

Extracted

Family

limerat

Attributes

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

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:

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe

Executes dropped EXE 1 IoCs

Processes:

NetFramework.exe

pid process

3612 NetFramework.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

37 pastebin.com
38 pastebin.com

pid	process
3612	NetFramework.exe

flow	ioc
37	pastebin.com
38	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

Processes:

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exeNetFramework.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	NetFramework.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	NetFramework.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.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

Processes:

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exeschtasks.exeNetFramework.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NetFramework.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

2392 schtasks.exe

pid	process
2392	schtasks.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exeNetFramework.exe

description	pid	process
Token: SeDebugPrivilege	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Token: 33	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Token: SeIncBasePriorityPrivilege	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
Token: SeDebugPrivilege	3612	NetFramework.exe
Token: 33	3612	NetFramework.exe
Token: SeIncBasePriorityPrivilege	3612	NetFramework.exe
Token: SeDebugPrivilege	3612	NetFramework.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe

description	pid	process	target process
PID 4500 wrote to memory of 2392	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	schtasks.exe
PID 4500 wrote to memory of 2392	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	schtasks.exe
PID 4500 wrote to memory of 2392	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	schtasks.exe
PID 4500 wrote to memory of 3612	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	NetFramework.exe
PID 4500 wrote to memory of 3612	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	NetFramework.exe
PID 4500 wrote to memory of 3612	4500	2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe	NetFramework.exe

C:\Users\Admin\AppData\Local\Temp\2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe
"C:\Users\Admin\AppData\Local\Temp\2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\NetFramework.exe'"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2392
- C:\Users\Admin\AppData\Roaming\NetFramework.exe
  "C:\Users\Admin\AppData\Roaming\NetFramework.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3612

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\Roaming\NetFramework.exe

Filesize
126KB

MD5
2dd2f138d0d9e49bacca639357af4481

SHA1
58c94fae547eaad0a94e0be91782eb2338f21be5

SHA256
2f3d77f926e241f50e090057f76141d62fb66637fdfda6be9d360f154bd7d619

SHA512
4ee82275fa0f9549624e8fbc1deed9e3d59b147584ebf05946bf1672a10551679427cfd67523c34343502bfae57e455ae53e321c8ce81001b930e8605a79deb8

Download Submit
memory/3612-17-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3612-14-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3612-16-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3612-18-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3612-19-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/3612-20-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4500-2-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4500-3-0x0000000074B82000-0x0000000074B83000-memory.dmp

Filesize
4KB

Download
memory/4500-4-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4500-1-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4500-15-0x0000000074B80000-0x0000000075131000-memory.dmp

Filesize
5.7MB

Download
memory/4500-0-0x0000000074B82000-0x0000000074B83000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads