asyncrat | 9160c4962d732d3bedfbb9da1634c2393b6564fc5b1f8a1ce62de5a4ed172e8b

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
2920	gherc.exe
2340	gherc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 636 set thread context of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 2920 set thread context of 3224	2920	gherc.exe	114

System Location Discovery: System Language Discovery 1 TTPs 11 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	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	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	cmd.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	gherc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BXA09QOPKJHVRFVU_001_PDF.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
516	schtasks.exe
1456	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	vbc.exe
Token: SeDebugPrivilege	3224	vbc.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 400	636	BXA09QOPKJHVRFVU_001_PDF.exe	99
PID 636 wrote to memory of 400	636	BXA09QOPKJHVRFVU_001_PDF.exe	99
PID 636 wrote to memory of 400	636	BXA09QOPKJHVRFVU_001_PDF.exe	99
PID 400 wrote to memory of 516	400	cmd.exe	101
PID 400 wrote to memory of 516	400	cmd.exe	101
PID 400 wrote to memory of 516	400	cmd.exe	101
PID 636 wrote to memory of 3932	636	BXA09QOPKJHVRFVU_001_PDF.exe	102
PID 636 wrote to memory of 3932	636	BXA09QOPKJHVRFVU_001_PDF.exe	102
PID 636 wrote to memory of 3932	636	BXA09QOPKJHVRFVU_001_PDF.exe	102
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 636 wrote to memory of 3404	636	BXA09QOPKJHVRFVU_001_PDF.exe	104
PID 2920 wrote to memory of 2584	2920	gherc.exe	109
PID 2920 wrote to memory of 2584	2920	gherc.exe	109
PID 2920 wrote to memory of 2584	2920	gherc.exe	109
PID 2920 wrote to memory of 2036	2920	gherc.exe	111
PID 2920 wrote to memory of 2036	2920	gherc.exe	111
PID 2920 wrote to memory of 2036	2920	gherc.exe	111
PID 2584 wrote to memory of 1456	2584	cmd.exe	113
PID 2584 wrote to memory of 1456	2584	cmd.exe	113
PID 2584 wrote to memory of 1456	2584	cmd.exe	113
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114
PID 2920 wrote to memory of 3224	2920	gherc.exe	114

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:636
- 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:400
- - 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:516
- 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:3932
- 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:3404

C:\Users\Admin\AppData\Roaming\gherc.exe
C:\Users\Admin\AppData\Roaming\gherc.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- 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:2584
- - 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:1456
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\gherc.exe" "C:\Users\Admin\AppData\Roaming\gherc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2036
- 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:3224

C:\Users\Admin\AppData\Roaming\gherc.exe
C:\Users\Admin\AppData\Roaming\gherc.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2340

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\gherc.exe.log

Filesize
612B

MD5
ca95b0db0b212857216268544c58e741

SHA1
5c2fd4ee1dc02d9412a19454562129f97bf930b5

SHA256
bdcf4429adc6ee689394b8ea1628e98bac4d0b7f8d735e5bf9e96218a41cd6f0

SHA512
c3d83412ec5c6dd7398c7ec0ae73838eed3f9e6e539771066378d74479092bc18f73deac581c3e5f053487eef1ae432a565eec2aa706c7ddf16d5855cb0e70bb

Download Submit
memory/636-6-0x0000000005680000-0x0000000005C24000-memory.dmp

Filesize
5.6MB

Download
memory/636-12-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/636-3-0x0000000004D90000-0x0000000004DF6000-memory.dmp

Filesize
408KB

Download
memory/636-4-0x000000007462E000-0x000000007462F000-memory.dmp

Filesize
4KB

Download
memory/636-5-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/636-0-0x000000007462E000-0x000000007462F000-memory.dmp

Filesize
4KB

Download
memory/636-1-0x00000000003F0000-0x0000000000414000-memory.dmp

Filesize
144KB

Download
memory/636-2-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-10-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-13-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-14-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-15-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-16-0x0000000074620000-0x0000000074DD0000-memory.dmp

Filesize
7.7MB

Download
memory/3404-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads