asyncrat | c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742

Analysis

max time kernel
150s
max time network
128s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
31/01/2026, 19:02

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General

Target
c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
Size 47KB
Sample260131-xp6clafy6c
SHA256 c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742
MD5 8ad7bebcecd5680d2661f1b50cbe072c
SHA1 d99a5dd1bfe1c1338835e844d7405f45b926a466
SHA512 024d1b9cee1e992aaa4e5f2671216e6a52f968b7bf45a1c406c8dfbef01d406eb1ac55bf20764928530408a24ea3837ac7852cccce644f5654a23c67400c5145
SSDEEP 768:jUK0ILGCqb+DictelDSN+iV08YbygeQqvYYivEgK/JXZVc6KN:jUpTctKDs4zb17qgtnkJXZVclN
TLSH
T1BD236D4037D8813AF2BD4BB4ADF2E6418679D2675903CA596CC814EE1F13BC596036FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

HhHolyShitttt1243-31975.portmap.host:31975

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
true
install_file
sys.exe
install_folder
%AppData%
local_host
127.0.0.1

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001b00000002b323-7.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2668	sys.exe
2360	sys.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
324	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
2504	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe
2668	sys.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
Token: SeDebugPrivilege	2668	sys.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 2324	3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe	82
PID 3328 wrote to memory of 2812	3328	c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe	84
PID 2812 wrote to memory of 324	2812	cmd.exe	86
PID 2324 wrote to memory of 2504	2324	cmd.exe	87
PID 2812 wrote to memory of 2360	2812	cmd.exe	90

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\c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe
"C:\Users\Admin\AppData\Local\Temp\c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "sys" /tr '"C:\Users\Admin\AppData\Roaming\sys.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "sys" /tr '"C:\Users\Admin\AppData\Roaming\sys.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2504
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4050.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:324
- - C:\Users\Admin\AppData\Roaming\sys.exe
    "C:\Users\Admin\AppData\Roaming\sys.exe"
    3⤵
    - Executes dropped EXE
    PID:2360

C:\Users\Admin\AppData\Roaming\sys.exe
"C:\Users\Admin\AppData\Roaming\sys.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2668

Network

MITRE ATT&CK Enterprise v16

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

Exfiltration

Impact

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Downloads

tmp4050.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4050.tmp.bat
Size 147B
SHA256 a2bf083e66490e251147238606d822833dd98d761ed2522014b130a745ce0b8c
MD5 9c74f1d7df3cf91fdce4bbbabb36d911
SHA1 9b00e6d0d09a02242e83512607c40fd533b55ecc
SHA512 21254cfcdcd093e15d28d7122d5a0610a4775fba9d9a6ca8c87f74237329f5f77e8ed11ac113abad46be9eceb624b399d492a1e46aee7f4445a6c609ce4afabb
TLSH
T1A2C02B4255C5EF0E2809645313FBD4CCA176BC193F40BB40D304444D228048CF4DD341
MD5 SHA1 SHA512 TLSH

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sys.exe

Path C:\Users\Admin\AppData\Roaming\sys.exe
Size 47KB
SHA256 c1109f82062bf684308219e33ceb0dc472dc11ac27331ac32dc636580db28742
MD5 8ad7bebcecd5680d2661f1b50cbe072c
SHA1 d99a5dd1bfe1c1338835e844d7405f45b926a466
SHA512 024d1b9cee1e992aaa4e5f2671216e6a52f968b7bf45a1c406c8dfbef01d406eb1ac55bf20764928530408a24ea3837ac7852cccce644f5654a23c67400c5145
SSDEEP 768:jUK0ILGCqb+DictelDSN+iV08YbygeQqvYYivEgK/JXZVc6KN:jUpTctKDs4zb17qgtnkJXZVclN
TLSH
T1BD236D4037D8813AF2BD4BB4ADF2E6418679D2675903CA596CC814EE1F13BC596036FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3328-0-0x0000000000470000-0x0000000000482000-memory.dmp

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memory/3328-1-0x000000001B1E0000-0x000000001B1F0000-memory.dmp

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