asyncrat | 5734066bf76cf5274a6d830ac4fc4d12162f1c1f508ae4b1babdd27ba62fb300

Analysis

max time kernel
143s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 14:44

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General

Target

g2m.dll
Size

44.7MB
MD5

800ea3a241461649e1bda3aac6854335
SHA1

111f1fc6b3d58328e8799b5c93a60b9586580166
SHA256

e0f8597fbde807a20dd853711c5cfda779eb18d389277c4a2db63948202723f7
SHA512

2aa8dc19e1310f8352af25b5de6da5783da5235847a1a8c8bf15aafc83f9fc6ef207ab25d0075aa858311abb681d82e921eb17a7d0af9f02451d5cf7c5d761af
SSDEEP

786432:rUP7GCGO7t0Srkx/tC0SzIdSwh/WxbpNHQD3trzRp2:rUP7GCG6iSrkx1hSzYsHQD3t/Rk

Score

10^/10

asyncrat venom clients persistence rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

5.253.84.218:7878

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\ChromeData.dll,EntryPoint"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1220 set thread context of 3576	1220	regsvr32.exe	101

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3576	csc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 1220	948	regsvr32.exe	91
PID 948 wrote to memory of 1220	948	regsvr32.exe	91
PID 948 wrote to memory of 1220	948	regsvr32.exe	91
PID 1220 wrote to memory of 3576	1220	regsvr32.exe	101
PID 1220 wrote to memory of 3576	1220	regsvr32.exe	101
PID 1220 wrote to memory of 3576	1220	regsvr32.exe	101
PID 1220 wrote to memory of 3576	1220	regsvr32.exe	101
PID 1220 wrote to memory of 3576	1220	regsvr32.exe	101
PID 1220 wrote to memory of 4468	1220	regsvr32.exe	102
PID 1220 wrote to memory of 4468	1220	regsvr32.exe	102
PID 1220 wrote to memory of 4468	1220	regsvr32.exe	102
PID 4468 wrote to memory of 4108	4468	cmd.exe	104
PID 4468 wrote to memory of 4108	4468	cmd.exe	104
PID 4468 wrote to memory of 4108	4468	cmd.exe	104

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:948
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1220
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3576
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeData.dll",EntryPoint /f & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4468
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\ChromeData.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      PID:4108

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1032 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
1⤵
PID:1752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1220-1-0x00000000102E6000-0x0000000010300000-memory.dmp

Filesize
104KB

Download
memory/1220-0-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1220-3-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1220-2-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1220-4-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1220-6-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/3576-5-0x0000000001260000-0x0000000001276000-memory.dmp

Filesize
88KB

Download
memory/3576-7-0x0000000073C5E000-0x0000000073C5F000-memory.dmp

Filesize
4KB

Download
memory/3576-8-0x0000000073C5E000-0x0000000073C5F000-memory.dmp

Filesize
4KB

Download
memory/3576-9-0x0000000006070000-0x000000000610C000-memory.dmp

Filesize
624KB

Download
memory/3576-10-0x00000000066C0000-0x0000000006C64000-memory.dmp

Filesize
5.6MB

Download
memory/3576-11-0x0000000006180000-0x00000000061E6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads