asyncrat | a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d

Analysis

max time kernel
150s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/03/2025, 19:55

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General

Target

a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
Size

73KB
MD5

d5da1e536afdda256c6b6174c4bcd705
SHA1

374dfb66e77aa5b8ad43994d587b6b58a6ccbfd7
SHA256

a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d
SHA512

77817afe1308ff0109e284faadc1a43bb17223bb43c2e12c801d753ac9b607a3a8b464683e626ea3f1b82976a034ea0d29c2ad95bb20c39b40e184245ee3b105
SSDEEP

1536:sUPQcxjTbCKGPMVme9VdQkhDIyH1bf/RmQQzcX3VclN:sUYcxjXZGPMVme9VdQgH1bfZmQQilY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

hahahahhaa

Attributes

delay
10
install
true
install_file
keycheese.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/LwwcrLg4

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/2204-1-0x00000000002C0000-0x00000000002D6000-memory.dmp	VenomRAT
behavioral1/files/0x0004000000004ed7-17.dat	VenomRAT
behavioral1/memory/2712-21-0x0000000000260000-0x0000000000276000-memory.dmp	VenomRAT

Venomrat family
venomrat

Executes dropped EXE 1 IoCs

pid	Process
2712	keycheese.exe

Loads dropped DLL 1 IoCs

pid	Process
1464	cmd.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

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
2780	timeout.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
2796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe
2712	keycheese.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
Token: SeDebugPrivilege	2712	keycheese.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	keycheese.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2840	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	31
PID 2204 wrote to memory of 2840	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	31
PID 2204 wrote to memory of 2840	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	31
PID 2204 wrote to memory of 1464	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	33
PID 2204 wrote to memory of 1464	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	33
PID 2204 wrote to memory of 1464	2204	a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe	33
PID 1464 wrote to memory of 2780	1464	cmd.exe	35
PID 1464 wrote to memory of 2780	1464	cmd.exe	35
PID 1464 wrote to memory of 2780	1464	cmd.exe	35
PID 2840 wrote to memory of 2796	2840	cmd.exe	36
PID 2840 wrote to memory of 2796	2840	cmd.exe	36
PID 2840 wrote to memory of 2796	2840	cmd.exe	36
PID 1464 wrote to memory of 2712	1464	cmd.exe	37
PID 1464 wrote to memory of 2712	1464	cmd.exe	37
PID 1464 wrote to memory of 2712	1464	cmd.exe	37

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\a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe
"C:\Users\Admin\AppData\Local\Temp\a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "keycheese" /tr '"C:\Users\Admin\AppData\Roaming\keycheese.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "keycheese" /tr '"C:\Users\Admin\AppData\Roaming\keycheese.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2796
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF71B.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2780
- - C:\Users\Admin\AppData\Roaming\keycheese.exe
    "C:\Users\Admin\AppData\Roaming\keycheese.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF71B.tmp.bat

Filesize
153B

MD5
da7c180b227a23b44ab41c75c0db790e

SHA1
3571ceb9bd246bb44411fa38bd7ca32893d1f2d0

SHA256
212ae39a8f9b510476e7add89740c526fe463a566dda402d94f37c970cbe683e

SHA512
56bef447596a8c28230c7a1ef797c699a421b752bd9b599093414bf92d867b3ce4be134f112c93e6255424b7a2dbc85d69159e79263734625bf9429b1fddc4b6

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
\Users\Admin\AppData\Roaming\keycheese.exe

Filesize
73KB

MD5
d5da1e536afdda256c6b6174c4bcd705

SHA1
374dfb66e77aa5b8ad43994d587b6b58a6ccbfd7

SHA256
a40cc8486acef7c0969f25d913a67d6da824bb97ef9ebf48ddfe1835663af65d

SHA512
77817afe1308ff0109e284faadc1a43bb17223bb43c2e12c801d753ac9b607a3a8b464683e626ea3f1b82976a034ea0d29c2ad95bb20c39b40e184245ee3b105

Download Submit
memory/2204-0-0x000007FEF5A23000-0x000007FEF5A24000-memory.dmp

Filesize
4KB

Download
memory/2204-1-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2204-3-0x000007FEF5A20000-0x000007FEF640C000-memory.dmp

Filesize
9.9MB

Download
memory/2204-4-0x000007FEF5A23000-0x000007FEF5A24000-memory.dmp

Filesize
4KB

Download
memory/2204-5-0x000007FEF5A20000-0x000007FEF640C000-memory.dmp

Filesize
9.9MB

Download
memory/2204-6-0x000007FEF5A20000-0x000007FEF640C000-memory.dmp

Filesize
9.9MB

Download
memory/2204-16-0x000007FEF5A20000-0x000007FEF640C000-memory.dmp

Filesize
9.9MB

Download
memory/2712-21-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download