asyncrat | 7a3b1e9c8df660dc1c1cf9b17411c1d6a4ffca364712c5de8ac46b1199ece1ce

Analysis

max time kernel
133s
max time network
161s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
11-11-2024 02:36

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General

Target

GjIEmKW.exe
Size

646KB
MD5

f1721c98efdae451be8ef071044cdb85
SHA1

28afdff9b32d7da6918a4ecc3a30eafe3be1f8e6
SHA256

bce1a92464358055d118d7a107bf8d5361f4fc2dfaaa41a18d2a9bc11b640272
SHA512

5e560094bfdb5d9e0a0f545373c9943a57c1da12378153cd0943ac2b10da9fcd1e256a71777f5cab803f5c434db11cd6cdd463bdcd2fe36420d7db5f2c57ffaf
SSDEEP

12288:z4UBGj3cBfudMiILCLbexicLZHgVkbh11a9iZoyfetMYviLZ4uDFa:z49j3Z4Ld30v8R

Score

10^/10

asyncrat venom clients discovery rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

45.137.65.94:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1484 set thread context of 400	1484	GjIEmKW.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	GjIEmKW.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	400	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31
PID 1484 wrote to memory of 400	1484	GjIEmKW.exe	31

C:\Users\Admin\AppData\Local\Temp\GjIEmKW.exe
"C:\Users\Admin\AppData\Local\Temp\GjIEmKW.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/400-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-21-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/400-19-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/400-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-20-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/400-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/400-12-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/400-17-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1484-4-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/1484-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/1484-1-0x0000000001390000-0x0000000001438000-memory.dmp

Filesize
672KB

Download
memory/1484-2-0x0000000000410000-0x000000000041C000-memory.dmp

Filesize
48KB

Download
memory/1484-18-0x0000000074B00000-0x00000000751EE000-memory.dmp

Filesize
6.9MB

Download
memory/1484-3-0x0000000000420000-0x0000000000428000-memory.dmp

Filesize
32KB

Download