asyncrat | 137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605

General

Target

137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
Size

145KB
MD5

b50678ff92638feb7b8aa2f4ff3be8ee
SHA1

8454d64704f29c592fbd4a525cba89d1c98eff9a
SHA256

137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605
SHA512

f6a2e7dd911bc58dc219abf5501d73f2f42d3d5b05c62293c593016b7048e3f7be81564d247fc939f51f60502ea6f7a38946a24da3844f05db7bf94cda8e5788
SSDEEP

3072:JU6cxbgwmPMV1YSnu1bhUZiQ4e5BV0WUniyimy5bY:JbwmPMVWiwbQi7e5v0WURyt

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

rmlpeezhttpf

Attributes

delay
1
install
true
install_file
msedge.exe
install_folder
%AppData%
pastebin_config
https://pastebin.ai/raw/ti3rlkerxk

aes.plain

Signatures

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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/1984-1-0x00000000013D0000-0x00000000013FA000-memory.dmp	VenomRAT
behavioral1/files/0x0009000000016fb3-16.dat	VenomRAT
behavioral1/memory/2172-18-0x00000000003B0000-0x00000000003DA000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x0009000000016fb3-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

msedge.exe

pid	Process
2172	msedge.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

evasion

Processes:

timeout.exe

pid	Process
2880	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

Processes:

schtasks.exe

pid	Process
2728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

Processes:

137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exemsedge.exe

pid	Process
1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe
2172	msedge.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exemsedge.exe

description	pid	Process
Token: SeDebugPrivilege	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
Token: SeDebugPrivilege	2172	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msedge.exe

pid	Process
2172	msedge.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.execmd.execmd.exe

description	pid	Process	procid_target
PID 1984 wrote to memory of 3052	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	31
PID 1984 wrote to memory of 3052	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	31
PID 1984 wrote to memory of 3052	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	31
PID 1984 wrote to memory of 2272	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	32
PID 1984 wrote to memory of 2272	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	32
PID 1984 wrote to memory of 2272	1984	137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe	32
PID 3052 wrote to memory of 2728	3052	cmd.exe	35
PID 3052 wrote to memory of 2728	3052	cmd.exe	35
PID 3052 wrote to memory of 2728	3052	cmd.exe	35
PID 2272 wrote to memory of 2880	2272	cmd.exe	36
PID 2272 wrote to memory of 2880	2272	cmd.exe	36
PID 2272 wrote to memory of 2880	2272	cmd.exe	36
PID 2272 wrote to memory of 2172	2272	cmd.exe	37
PID 2272 wrote to memory of 2172	2272	cmd.exe	37
PID 2272 wrote to memory of 2172	2272	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\137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe
"C:\Users\Admin\AppData\Local\Temp\137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "msedge" /tr '"C:\Users\Admin\AppData\Roaming\msedge.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "msedge" /tr '"C:\Users\Admin\AppData\Roaming\msedge.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2728
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDC99.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2880
- - C:\Users\Admin\AppData\Roaming\msedge.exe
    "C:\Users\Admin\AppData\Roaming\msedge.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2172

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

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\tmpDC99.tmp.bat

Filesize
150B

MD5
75059cc95e5153cda54d81a810f2e6f2

SHA1
81aa870c34137da7445141832071e96ad977db54

SHA256
28dec6fd6db1f88528bb06e6d4c918bae0c130195e5a2d7dd9899e766de3ad3c

SHA512
02288cdf6bf6bcbf1f56918795d305ec0027508af69ce6355cb4e0ad8b2f0537100d0edcec15b582fb4499c8b95e9956e670fe8e7a1ce591d1291155f31d278f

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\msedge.exe

Filesize
145KB

MD5
b50678ff92638feb7b8aa2f4ff3be8ee

SHA1
8454d64704f29c592fbd4a525cba89d1c98eff9a

SHA256
137df247e18f0efcfd07e9b9bcc1014a532cab2737aedbc456c3c43f5e7b1605

SHA512
f6a2e7dd911bc58dc219abf5501d73f2f42d3d5b05c62293c593016b7048e3f7be81564d247fc939f51f60502ea6f7a38946a24da3844f05db7bf94cda8e5788

Download Submit
memory/1984-0-0x000007FEF5273000-0x000007FEF5274000-memory.dmp

Filesize
4KB

Download
memory/1984-1-0x00000000013D0000-0x00000000013FA000-memory.dmp

Filesize
168KB

Download
memory/1984-3-0x000007FEF5270000-0x000007FEF5C5C000-memory.dmp

Filesize
9.9MB

Download
memory/1984-12-0x000007FEF5270000-0x000007FEF5C5C000-memory.dmp

Filesize
9.9MB

Download
memory/1984-13-0x000007FEF5270000-0x000007FEF5C5C000-memory.dmp

Filesize
9.9MB

Download
memory/2172-18-0x00000000003B0000-0x00000000003DA000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads