asyncrat | ee497caf223652c226571906ea5623d4a51ddc303d3e1d59443b8da17b7d29da

General

Target

CrackedDefault.exe
Size

74KB
MD5

ee3fa50b70d2796ef1e27f5ece10edbf
SHA1

b41fe73491b0a2c2ae2059da96a523c3f5b587ae
SHA256

ee497caf223652c226571906ea5623d4a51ddc303d3e1d59443b8da17b7d29da
SHA512

4696604820ee75d2a171d6500a04bc4a26449fde6dc170b39f9734944a7fc26e3b4e03cb2d13ae87a9d0270666223c6fd6b3f7f3144b82c3a7392cd656ee2acb
SSDEEP

1536:aUXNwcxKHXwzCtmPMVOAxFI6H1bi/5Qzc+LVclN:aUXicxK8WmPMVOAPH1biRQXBY

Score

10^/10

asyncrat venomrat def rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Def

Mutex

qmcwkkwaroj

Attributes

c2_url_file
https://paste.ee/r/oBfRfDEZ/0
delay
1
install
true
install_file
System.exe
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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral1/memory/3060-1-0x0000000001340000-0x0000000001358000-memory.dmp	VenomRAT
behavioral1/files/0x0008000000015d8c-16.dat	VenomRAT
behavioral1/memory/2788-18-0x0000000000B00000-0x0000000000B18000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0008000000015d8c-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2788	System.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2444	timeout.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	System.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	System.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3060	CrackedDefault.exe
3060	CrackedDefault.exe
3060	CrackedDefault.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe
2788	System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	CrackedDefault.exe
Token: SeDebugPrivilege	2788	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2788	System.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2376	3060	CrackedDefault.exe	30
PID 3060 wrote to memory of 2376	3060	CrackedDefault.exe	30
PID 3060 wrote to memory of 2376	3060	CrackedDefault.exe	30
PID 3060 wrote to memory of 2308	3060	CrackedDefault.exe	32
PID 3060 wrote to memory of 2308	3060	CrackedDefault.exe	32
PID 3060 wrote to memory of 2308	3060	CrackedDefault.exe	32
PID 2376 wrote to memory of 3008	2376	cmd.exe	34
PID 2376 wrote to memory of 3008	2376	cmd.exe	34
PID 2376 wrote to memory of 3008	2376	cmd.exe	34
PID 2308 wrote to memory of 2444	2308	cmd.exe	35
PID 2308 wrote to memory of 2444	2308	cmd.exe	35
PID 2308 wrote to memory of 2444	2308	cmd.exe	35
PID 2308 wrote to memory of 2788	2308	cmd.exe	36
PID 2308 wrote to memory of 2788	2308	cmd.exe	36
PID 2308 wrote to memory of 2788	2308	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\CrackedDefault.exe
"C:\Users\Admin\AppData\Local\Temp\CrackedDefault.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System" /tr '"C:\Users\Admin\AppData\Roaming\System.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3008
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBE8E.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2444
- - C:\Users\Admin\AppData\Roaming\System.exe
    "C:\Users\Admin\AppData\Roaming\System.exe"
    3⤵
    - Executes dropped EXE
    - Modifies system certificate store
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBE8E.tmp.bat

Filesize
150B

MD5
16526787a37626ea148348299756ab7a

SHA1
0e13f61c37aee95a0c60ef170658fd1fb99d7023

SHA256
7eac21be0e3a21117f92895253ee671204c5dea2e05d16e52ebe3fec4635ce69

SHA512
fca9c05a1c25b34ad0b98451fea806810a41519315750a37d01344cffdaf31c15c57370943e9a6f2ac80447b3a298c7d63b209e2a835eeb3085d3bd92d5a2b29

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
C:\Users\Admin\AppData\Roaming\System.exe

Filesize
74KB

MD5
ee3fa50b70d2796ef1e27f5ece10edbf

SHA1
b41fe73491b0a2c2ae2059da96a523c3f5b587ae

SHA256
ee497caf223652c226571906ea5623d4a51ddc303d3e1d59443b8da17b7d29da

SHA512
4696604820ee75d2a171d6500a04bc4a26449fde6dc170b39f9734944a7fc26e3b4e03cb2d13ae87a9d0270666223c6fd6b3f7f3144b82c3a7392cd656ee2acb

Download Submit
memory/2788-18-0x0000000000B00000-0x0000000000B18000-memory.dmp

Filesize
96KB

Download
memory/3060-0-0x000007FEF5D83000-0x000007FEF5D84000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x0000000001340000-0x0000000001358000-memory.dmp

Filesize
96KB

Download
memory/3060-3-0x000007FEF5D80000-0x000007FEF676C000-memory.dmp

Filesize
9.9MB

Download
memory/3060-11-0x000007FEF5D80000-0x000007FEF676C000-memory.dmp

Filesize
9.9MB

Download
memory/3060-14-0x000007FEF5D80000-0x000007FEF676C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads