asyncrat | e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 20:20

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General

Target

JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe
Size

300.0MB
MD5

f2fe09806411a018f01bb6a12a80b2b2
SHA1

c08c933ff0bd50a1bded400f086378ddaab5ba4d
SHA256

e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4
SHA512

e435ef3941858b3e3a4d24bfd9778b9c683185472cdd326209dfdbfdc6cfdcea91fa01583985e586db01ef07749c5d1629091117661e7f60db0a9d0e4bd451b8
SSDEEP

3072:bXlvFgvATyfHSt0Vki6jKV1c2jZZIUh7yZGRXBOUEs64BRg40nuFbl3TQ9:b4vj562V/UZ+BUeBRgul29

Score

10^/10

asyncrat venom clients discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT 5.0.5

Botnet

Venom Clients

theyk6836.duckdns.org:9026

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
2888	redfv.exe
1472	redfv.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 2248 set thread context of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2888 set thread context of 684	2888	redfv.exe	44
PID 1472 set thread context of 1288	1472	redfv.exe	51

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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	redfv.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	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	redfv.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	vbc.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
2876	schtasks.exe
800	schtasks.exe
1160	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2556	vbc.exe
Token: SeDebugPrivilege	684	vbc.exe
Token: SeDebugPrivilege	1288	vbc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	31
PID 2248 wrote to memory of 2720	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	31
PID 2720 wrote to memory of 2876	2720	cmd.exe	33
PID 2720 wrote to memory of 2876	2720	cmd.exe	33
PID 2720 wrote to memory of 2876	2720	cmd.exe	33
PID 2720 wrote to memory of 2876	2720	cmd.exe	33
PID 2248 wrote to memory of 2172	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	34
PID 2248 wrote to memory of 2172	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	34
PID 2248 wrote to memory of 2172	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	34
PID 2248 wrote to memory of 2172	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	34
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 2248 wrote to memory of 2556	2248	JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe	36
PID 1424 wrote to memory of 2888	1424	taskeng.exe	38
PID 1424 wrote to memory of 2888	1424	taskeng.exe	38
PID 1424 wrote to memory of 2888	1424	taskeng.exe	38
PID 1424 wrote to memory of 2888	1424	taskeng.exe	38
PID 2888 wrote to memory of 1392	2888	redfv.exe	39
PID 2888 wrote to memory of 1392	2888	redfv.exe	39
PID 2888 wrote to memory of 1392	2888	redfv.exe	39
PID 2888 wrote to memory of 1392	2888	redfv.exe	39
PID 2888 wrote to memory of 2376	2888	redfv.exe	41
PID 2888 wrote to memory of 2376	2888	redfv.exe	41
PID 2888 wrote to memory of 2376	2888	redfv.exe	41
PID 2888 wrote to memory of 2376	2888	redfv.exe	41
PID 1392 wrote to memory of 800	1392	cmd.exe	42
PID 1392 wrote to memory of 800	1392	cmd.exe	42
PID 1392 wrote to memory of 800	1392	cmd.exe	42
PID 1392 wrote to memory of 800	1392	cmd.exe	42
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 2888 wrote to memory of 684	2888	redfv.exe	44
PID 1424 wrote to memory of 1472	1424	taskeng.exe	45
PID 1424 wrote to memory of 1472	1424	taskeng.exe	45
PID 1424 wrote to memory of 1472	1424	taskeng.exe	45
PID 1424 wrote to memory of 1472	1424	taskeng.exe	45
PID 1472 wrote to memory of 2092	1472	redfv.exe	46
PID 1472 wrote to memory of 2092	1472	redfv.exe	46
PID 1472 wrote to memory of 2092	1472	redfv.exe	46
PID 1472 wrote to memory of 2092	1472	redfv.exe	46
PID 2092 wrote to memory of 1160	2092	cmd.exe	49
PID 2092 wrote to memory of 1160	2092	cmd.exe	49
PID 2092 wrote to memory of 1160	2092	cmd.exe	49
PID 2092 wrote to memory of 1160	2092	cmd.exe	49
PID 1472 wrote to memory of 404	1472	redfv.exe	48
PID 1472 wrote to memory of 404	1472	redfv.exe	48
PID 1472 wrote to memory of 404	1472	redfv.exe	48
PID 1472 wrote to memory of 404	1472	redfv.exe	48
PID 1472 wrote to memory of 1288	1472	redfv.exe	51
PID 1472 wrote to memory of 1288	1472	redfv.exe	51

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2876
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e2f693427eb98ff14d97a66007433ddebb3a8311309e2b1f1a95a07c3ec397b4.exe" "C:\Users\Admin\AppData\Roaming\redfv.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- 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:2556

C:\Windows\system32\taskeng.exe
taskeng.exe {AF5CDA16-C14C-4DF4-B316-9E5CC0146B68} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Users\Admin\AppData\Roaming\redfv.exe
  C:\Users\Admin\AppData\Roaming\redfv.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1392
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:800
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\redfv.exe" "C:\Users\Admin\AppData\Roaming\redfv.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2376
- - 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:684
- C:\Users\Admin\AppData\Roaming\redfv.exe
  C:\Users\Admin\AppData\Roaming\redfv.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1472
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2092
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\redfv.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1160
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\redfv.exe" "C:\Users\Admin\AppData\Roaming\redfv.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:404
- - 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:1288

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/684-30-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1288-45-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1472-36-0x0000000000A70000-0x0000000000AA0000-memory.dmp

Filesize
192KB

Download
memory/2248-18-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-0-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x00000000003D0000-0x0000000000400000-memory.dmp

Filesize
192KB

Download
memory/2248-2-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2248-3-0x00000000741EE000-0x00000000741EF000-memory.dmp

Filesize
4KB

Download
memory/2248-4-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/2556-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-12-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-17-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2556-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-21-0x00000000002F0000-0x0000000000320000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads