asyncrat | 5734066bf76cf5274a6d830ac4fc4d12162f1c1f508ae4b1babdd27ba62fb300

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

C2

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

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\ChromeData.dll,EntryPoint"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 1176 set thread context of 2184 1176 regsvr32.exe csc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

csc.exe

description pid process

Token: SeDebugPrivilege 2184 csc.exe

description	pid	process	target process
PID 1176 set thread context of 2184	1176	regsvr32.exe	csc.exe

description	pid	process
Token: SeDebugPrivilege	2184	csc.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

regsvr32.exeregsvr32.execmd.exe

description	pid	process	target process
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 2408 wrote to memory of 1176	2408	regsvr32.exe	regsvr32.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2184	1176	regsvr32.exe	csc.exe
PID 1176 wrote to memory of 2452	1176	regsvr32.exe	cmd.exe
PID 1176 wrote to memory of 2452	1176	regsvr32.exe	cmd.exe
PID 1176 wrote to memory of 2452	1176	regsvr32.exe	cmd.exe
PID 1176 wrote to memory of 2452	1176	regsvr32.exe	cmd.exe
PID 2452 wrote to memory of 2508	2452	cmd.exe	reg.exe
PID 2452 wrote to memory of 2508	2452	cmd.exe	reg.exe
PID 2452 wrote to memory of 2508	2452	cmd.exe	reg.exe
PID 2452 wrote to memory of 2508	2452	cmd.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1176
- - 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:2184
- - 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:2452
  - - 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:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1176-1-0x00000000102E6000-0x0000000010300000-memory.dmp

Filesize
104KB

Download
memory/1176-0-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1176-2-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1176-3-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/1176-8-0x0000000010000000-0x0000000012D6D000-memory.dmp

Filesize
45.4MB

Download
memory/2184-12-0x0000000000080000-0x0000000000096000-memory.dmp

Filesize
88KB

Download
memory/2184-10-0x0000000000080000-0x0000000000096000-memory.dmp

Filesize
88KB

Download
memory/2184-7-0x0000000000080000-0x0000000000096000-memory.dmp

Filesize
88KB

Download
memory/2184-6-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-4-0x0000000000080000-0x0000000000096000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads