limerat | a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-04-2024 07:16

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General

Target

a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe
Size

314KB
MD5

ad997dc4ee32ab469e45009f218175d0
SHA1

17ef145486c494ea9c727972c501471e720887f0
SHA256

a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166
SHA512

727aceb3edd5dfbbbad84e1aef4beb3773313378bd4fa6cd77800d6cf578ba740a5ebc1f3740593071a26daa2cf91e49243fa4ba043d934c8bd936a1526c18d0
SSDEEP

3072:oiPK9mkbyBaKJyPATmiyAnY5o9BrFV0bIBVvBCj4EKK4h75AQ5ii:oCj2yBOiW5o972jEh75F5ii

Score

10^/10

limerat zgrat rat

Malware Config

Signatures

Detect ZGRat V1 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/376-0-0x00000000009E0000-0x0000000000A34000-memory.dmp	family_zgrat_v1
C:\Users\Admin\AppData\Roaming\Necobit.exe	family_zgrat_v1

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

Processes:

resource	yara_rule
behavioral1/memory/376-0-0x00000000009E0000-0x0000000000A34000-memory.dmp	net_reactor
C:\Users\Admin\AppData\Roaming\Necobit.exe	net_reactor

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:

a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe

Executes dropped EXE 1 IoCs

Processes:

Necobit.exe

pid process

4348 Necobit.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

Processes:

schtasks.exe

pid process

1148 schtasks.exe

pid	process
4348	Necobit.exe

pid	process
1148	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe

description	pid	process	target process
PID 376 wrote to memory of 1148	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	schtasks.exe
PID 376 wrote to memory of 1148	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	schtasks.exe
PID 376 wrote to memory of 1148	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	schtasks.exe
PID 376 wrote to memory of 4348	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	Necobit.exe
PID 376 wrote to memory of 4348	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	Necobit.exe
PID 376 wrote to memory of 4348	376	a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe	Necobit.exe

C:\Users\Admin\AppData\Local\Temp\a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe
"C:\Users\Admin\AppData\Local\Temp\a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\Necobit.exe'"
  2⤵
  - Creates scheduled task(s)
  PID:1148
- C:\Users\Admin\AppData\Roaming\Necobit.exe
  "C:\Users\Admin\AppData\Roaming\Necobit.exe"
  2⤵
  - Executes dropped EXE
  PID:4348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
314KB

MD5
ad997dc4ee32ab469e45009f218175d0

SHA1
17ef145486c494ea9c727972c501471e720887f0

SHA256
a1f8bb5990775f277540eb4c7579695477445afd90262cb819567cc9b3042166

SHA512
727aceb3edd5dfbbbad84e1aef4beb3773313378bd4fa6cd77800d6cf578ba740a5ebc1f3740593071a26daa2cf91e49243fa4ba043d934c8bd936a1526c18d0

Download Submit
memory/376-6-0x0000000001150000-0x00000000011B6000-memory.dmp

Filesize
408KB

Download
memory/376-2-0x0000000005460000-0x0000000005470000-memory.dmp

Filesize
64KB

Download
memory/376-3-0x0000000005520000-0x00000000055BC000-memory.dmp

Filesize
624KB

Download
memory/376-4-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/376-5-0x0000000005460000-0x0000000005470000-memory.dmp

Filesize
64KB

Download
memory/376-0-0x00000000009E0000-0x0000000000A34000-memory.dmp

Filesize
336KB

Download
memory/376-7-0x0000000005F70000-0x0000000006514000-memory.dmp

Filesize
5.6MB

Download
memory/376-1-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/376-19-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/4348-17-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/4348-18-0x0000000005750000-0x0000000005760000-memory.dmp

Filesize
64KB

Download
memory/4348-20-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/4348-21-0x0000000005750000-0x0000000005760000-memory.dmp

Filesize
64KB

Download