asyncrat | c2d4aff226178355b8ef7b9e28e4d2869def12eacdfe91e9ed1135b6cd20deab

Analysis

max time kernel
37s
max time network
55s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-de
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-delocale:de-deos:windows10-ltsc 2021-x64systemwindows
submitted
22-01-2025 18:14

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General

Target

DemonSpoofCall.exe
Size

9.7MB
MD5

1dfe6d227d66658b9ab790ce66160551
SHA1

62087a4f6c0b47635f068262b3d9df15aab746d9
SHA256

c2d4aff226178355b8ef7b9e28e4d2869def12eacdfe91e9ed1135b6cd20deab
SHA512

c10e34658ea727c52f96051fd9fe6d3c1b6f3dbeed9b9ced6bbfd2819db3a8aaeea693f890581190d3d10749e3000f8088c543d8cd006301c0b3032c4457d454
SSDEEP

196608:lrkCDFxgtiWe4/RSgOqTn9nBIzuZrSW+xHGoFlaoDKWzQo1OIg5sa7t:5eiYRNXnDZrSF8oF9uB5B

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

127.0.0.1:6606

89.84.63.139:6606

Mutex

caqxyzoxvrzhnrxwoc

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/3684-8-0x0000000009B50000-0x0000000009B68000-memory.dmp	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
3684	PDFreader.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

Web Service

T1102

flow	ioc
9	raw.githubusercontent.com
10	raw.githubusercontent.com
11	raw.githubusercontent.com

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	DemonSpoofCall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PDFreader.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3772	DemonSpoofCall.exe
3684	PDFreader.exe
3684	PDFreader.exe
3684	PDFreader.exe
3684	PDFreader.exe
3684	PDFreader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3772	DemonSpoofCall.exe
Token: SeDebugPrivilege	3684	PDFreader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3684	PDFreader.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 3684	3772	DemonSpoofCall.exe	86
PID 3772 wrote to memory of 3684	3772	DemonSpoofCall.exe	86
PID 3772 wrote to memory of 3684	3772	DemonSpoofCall.exe	86
PID 3772 wrote to memory of 3684	3772	DemonSpoofCall.exe	86

C:\Users\Admin\AppData\Local\Temp\DemonSpoofCall.exe
"C:\Users\Admin\AppData\Local\Temp\DemonSpoofCall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3772
- C:\Users\Admin\AppData\Roaming\PDFreader.exe
  "C:\Users\Admin\AppData\Roaming\PDFreader.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
8.8MB

MD5
f7dfe66072d3a91e2cd71436d4f3fb33

SHA1
7a76472a762c7cf68748c3b6b213ada71c5bba5a

SHA256
22e912427beff52645f1e2a19e361ecb03258a009a0d45e52fe20deefb224234

SHA512
22f49b6bcf5db183a0ac23e4b51631f8487d30f2508be9ac0408760f04224397d2851eaa3027b9f75607337a0395898ec2eed006ae4ac38dcdcc3f17ef5316a7

Download Submit
memory/3684-12-0x000000000AE90000-0x000000000AF22000-memory.dmp

Filesize
584KB

Download
memory/3684-6-0x0000000006B50000-0x0000000006B67000-memory.dmp

Filesize
92KB

Download
memory/3684-14-0x000000000A940000-0x000000000A94A000-memory.dmp

Filesize
40KB

Download
memory/3684-13-0x0000000000A40000-0x0000000001267000-memory.dmp

Filesize
8.2MB

Download
memory/3684-8-0x0000000009B50000-0x0000000009B68000-memory.dmp

Filesize
96KB

Download
memory/3684-9-0x000000000A2C0000-0x000000000A866000-memory.dmp

Filesize
5.6MB

Download
memory/3684-11-0x000000000A980000-0x000000000AA84000-memory.dmp

Filesize
1.0MB

Download
memory/3684-24-0x000000000CF30000-0x000000000CF4E000-memory.dmp

Filesize
120KB

Download
memory/3684-25-0x000000000D630000-0x000000000D640000-memory.dmp

Filesize
64KB

Download
memory/3684-5-0x0000000000A40000-0x0000000001267000-memory.dmp

Filesize
8.2MB

Download
memory/3684-7-0x0000000000A40000-0x0000000001267000-memory.dmp

Filesize
8.2MB

Download
memory/3684-16-0x0000000000A40000-0x0000000001267000-memory.dmp

Filesize
8.2MB

Download
memory/3684-19-0x000000000BDF0000-0x000000000BE8C000-memory.dmp

Filesize
624KB

Download
memory/3684-20-0x000000000C400000-0x000000000C466000-memory.dmp

Filesize
408KB

Download
memory/3684-22-0x000000000CEB0000-0x000000000CF26000-memory.dmp

Filesize
472KB

Download
memory/3684-23-0x000000000CE30000-0x000000000CE40000-memory.dmp

Filesize
64KB

Download
memory/3772-0-0x0000000000F24000-0x0000000000F25000-memory.dmp

Filesize
4KB

Download
memory/3772-15-0x0000000000F24000-0x0000000000F25000-memory.dmp

Filesize
4KB

Download