asyncrat | 9160c4962d732d3bedfbb9da1634c2393b6564fc5b1f8a1ce62de5a4ed172e8b

Analysis

max time kernel
147s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 02:29

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General

Target

BXA09QOPKJHVRFVU_001_PDF.exe
Size

300.0MB
MD5

5b5b1099d3adbfba6ac4a0fe2c2a032e
SHA1

a0bfb095d19e54dd13f120b5b863c9ed9e02e7f7
SHA256

521c835ad73fb2d4e932e2cb36a5f95377f0314384339e5e18adc3e85238cd14
SHA512

c599cf5b2b04e871c45c884dc201f94f1038e96184610afa9a725349a590577fd823355b51fafb9a7f8aa8d8e78f724e936fac7e6e811dacc4060a25a41e8372
SSDEEP

3072:Z2eAJ+sffO8Q335Bdq5mV4LcPz3ipe+ZUjUcwtJFu4Ki:Z2Ssen35Bdq5mVUcr3ipJcUFuni

Score

10^/10

asyncrat venom clients discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT 5.0.5

Botnet

Venom Clients

gratedmonth.duckdns.org:8890

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

Executes dropped EXE 2 IoCs

pid	Process
2352	gherc.exe
1752	gherc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1884 set thread context of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 2352 set thread context of 2700	2352	gherc.exe	45
PID 1752 set thread context of 1036	1752	gherc.exe	52

System Location Discovery: System Language Discovery 1 TTPs 15 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gherc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gherc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BXA09QOPKJHVRFVU_001_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2932	schtasks.exe
956	schtasks.exe
2004	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	vbc.exe
Token: SeDebugPrivilege	2700	vbc.exe
Token: SeDebugPrivilege	1036	vbc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2908	1884	BXA09QOPKJHVRFVU_001_PDF.exe	31
PID 1884 wrote to memory of 2908	1884	BXA09QOPKJHVRFVU_001_PDF.exe	31
PID 1884 wrote to memory of 2908	1884	BXA09QOPKJHVRFVU_001_PDF.exe	31
PID 1884 wrote to memory of 2908	1884	BXA09QOPKJHVRFVU_001_PDF.exe	31
PID 2908 wrote to memory of 2932	2908	cmd.exe	33
PID 2908 wrote to memory of 2932	2908	cmd.exe	33
PID 2908 wrote to memory of 2932	2908	cmd.exe	33
PID 2908 wrote to memory of 2932	2908	cmd.exe	33
PID 1884 wrote to memory of 2896	1884	BXA09QOPKJHVRFVU_001_PDF.exe	34
PID 1884 wrote to memory of 2896	1884	BXA09QOPKJHVRFVU_001_PDF.exe	34
PID 1884 wrote to memory of 2896	1884	BXA09QOPKJHVRFVU_001_PDF.exe	34
PID 1884 wrote to memory of 2896	1884	BXA09QOPKJHVRFVU_001_PDF.exe	34
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 1884 wrote to memory of 2268	1884	BXA09QOPKJHVRFVU_001_PDF.exe	36
PID 2664 wrote to memory of 2352	2664	taskeng.exe	39
PID 2664 wrote to memory of 2352	2664	taskeng.exe	39
PID 2664 wrote to memory of 2352	2664	taskeng.exe	39
PID 2664 wrote to memory of 2352	2664	taskeng.exe	39
PID 2352 wrote to memory of 2840	2352	gherc.exe	40
PID 2352 wrote to memory of 2840	2352	gherc.exe	40
PID 2352 wrote to memory of 2840	2352	gherc.exe	40
PID 2352 wrote to memory of 2840	2352	gherc.exe	40
PID 2352 wrote to memory of 1532	2352	gherc.exe	42
PID 2352 wrote to memory of 1532	2352	gherc.exe	42
PID 2352 wrote to memory of 1532	2352	gherc.exe	42
PID 2352 wrote to memory of 1532	2352	gherc.exe	42
PID 2840 wrote to memory of 956	2840	cmd.exe	43
PID 2840 wrote to memory of 956	2840	cmd.exe	43
PID 2840 wrote to memory of 956	2840	cmd.exe	43
PID 2840 wrote to memory of 956	2840	cmd.exe	43
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2352 wrote to memory of 2700	2352	gherc.exe	45
PID 2664 wrote to memory of 1752	2664	taskeng.exe	46
PID 2664 wrote to memory of 1752	2664	taskeng.exe	46
PID 2664 wrote to memory of 1752	2664	taskeng.exe	46
PID 2664 wrote to memory of 1752	2664	taskeng.exe	46
PID 1752 wrote to memory of 1032	1752	gherc.exe	47
PID 1752 wrote to memory of 1032	1752	gherc.exe	47
PID 1752 wrote to memory of 1032	1752	gherc.exe	47
PID 1752 wrote to memory of 1032	1752	gherc.exe	47
PID 1032 wrote to memory of 2004	1032	cmd.exe	50
PID 1032 wrote to memory of 2004	1032	cmd.exe	50
PID 1032 wrote to memory of 2004	1032	cmd.exe	50
PID 1032 wrote to memory of 2004	1032	cmd.exe	50
PID 1752 wrote to memory of 1416	1752	gherc.exe	49
PID 1752 wrote to memory of 1416	1752	gherc.exe	49
PID 1752 wrote to memory of 1416	1752	gherc.exe	49
PID 1752 wrote to memory of 1416	1752	gherc.exe	49
PID 1752 wrote to memory of 1036	1752	gherc.exe	52
PID 1752 wrote to memory of 1036	1752	gherc.exe	52

C:\Users\Admin\AppData\Local\Temp\BXA09QOPKJHVRFVU_001_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\BXA09QOPKJHVRFVU_001_PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2908
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\BXA09QOPKJHVRFVU_001_PDF.exe" "C:\Users\Admin\AppData\Roaming\gherc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2268

C:\Windows\system32\taskeng.exe
taskeng.exe {CEDEA3FB-239F-448A-9C6F-17885717B260} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Users\Admin\AppData\Roaming\gherc.exe
  C:\Users\Admin\AppData\Roaming\gherc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2840
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:956
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\gherc.exe" "C:\Users\Admin\AppData\Roaming\gherc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1532
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2700
- C:\Users\Admin\AppData\Roaming\gherc.exe
  C:\Users\Admin\AppData\Roaming\gherc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1032
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\gherc.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2004
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\gherc.exe" "C:\Users\Admin\AppData\Roaming\gherc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1416
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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/1752-37-0x00000000003C0000-0x00000000003E4000-memory.dmp

Filesize
144KB

Download
memory/1884-0-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/1884-1-0x0000000000BB0000-0x0000000000BD4000-memory.dmp

Filesize
144KB

Download
memory/1884-2-0x0000000074920000-0x000000007500E000-memory.dmp

Filesize
6.9MB

Download
memory/1884-3-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/1884-4-0x0000000074920000-0x000000007500E000-memory.dmp

Filesize
6.9MB

Download
memory/1884-19-0x0000000074920000-0x000000007500E000-memory.dmp

Filesize
6.9MB

Download
memory/2268-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2268-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2268-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2352-22-0x0000000000A90000-0x0000000000AB4000-memory.dmp

Filesize
144KB

Download
memory/2700-31-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads