asyncrat | 4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc

General

Target

4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
Size

78KB
MD5

4f83c8f20cd7bcc3e5a57bddeab7bc7c
SHA1

29429616422b8729ea226e9b2b9ac2cc6dcdffa5
SHA256

4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc
SHA512

f1267b99fe5e6571e7e1505e6a40b5d87adf87675bf2e7356855ef42251bcdc7a461e0c76a2d3d090373e4ae23721003b1c47619614749d1a0f25b441656b0f3
SSDEEP

1536:7UNwcxbUTCrmPMVrtPFBeFIjH1bE/1Qa2lVwQzcL7LVclN:7UicxbgwmPMVBPFHH1bEZ2lVwQSBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

vwjpgbiaawlduyxu

Attributes

c2_url_file
https://paste.ee/r/3r0S88ur/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/1740-1-0x0000000000240000-0x0000000000258000-memory.dmp	VenomRAT
behavioral1/files/0x0033000000016e73-16.dat	VenomRAT
behavioral1/memory/2076-18-0x00000000012B0000-0x00000000012C8000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0033000000016e73-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2076	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
2768	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 = 0400000001000000100000000cd2f9e0da1773e9ed864da5e370e74e14000000010000001400000079b459e67bb6e5e40173800888c81a58f6e99b6e030000000100000014000000cabd2a79a1076a31f21d253635cb039d4329a5e80f00000001000000200000003f0411ede9c4477057d57e57883b1f205b20cdc0f3263129b1ee0269a2678f631900000001000000100000002fe1f70bb05d7c92335bc5e05b984da620000000010000006f0500003082056b30820353a0030201020211008210cfb0d240e3594463e0bb63828b00300d06092a864886f70d01010b0500304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f74205831301e170d3135303630343131303433385a170d3335303630343131303433385a304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f7420583130820222300d06092a864886f70d01010105000382020f003082020a0282020100ade82473f41437f39b9e2b57281c87bedcb7df38908c6e3ce657a078f775c2a2fef56a6ef6004f28dbde68866c4493b6b163fd14126bbf1fd2ea319b217ed1333cba48f5dd79dfb3b8ff12f1219a4bc18a8671694a66666c8f7e3c70bfad292206f3e4c0e680aee24b8fb7997e94039fd347977c99482353e838ae4f0a6f832ed149578c8074b6da2fd0388d7b0370211b75f2303cfa8faeddda63abeb164fc28e114b7ecf0be8ffb5772ef4b27b4ae04c12250c708d0329a0e15324ec13d9ee19bf10b34a8c3f89a36151deac870794f46371ec2ee26f5b9881e1895c34796c76ef3b906279e6dba49a2f26c5d010e10eded9108e16fbb7f7a8f7c7e50207988f360895e7e237960d36759efb0e72b11d9bbc03f94905d881dd05b42ad641e9ac0176950a0fd8dfd5bd121f352f28176cd298c1a80964776e4737baceac595e689d7f72d689c50641293e593edd26f524c911a75aa34c401f46a199b5a73a516e863b9e7d72a712057859ed3e5178150b038f8dd02f05b23e7b4a1c4b730512fcc6eae050137c439374b3ca74e78e1f0108d030d45b7136b407bac130305c48b7823b98a67d608aa2a32982ccbabd83041ba2830341a1d605f11bc2b6f0a87c863b46a8482a88dc769a76bf1f6aa53d198feb38f364dec82b0d0a28fff7dbe21542d422d0275de179fe18e77088ad4ee6d98b3ac6dd27516effbc64f533434f0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e0416041479b459e67bb6e5e40173800888c81a58f6e99b6e300d06092a864886f70d01010b05000382020100551f58a9bcb2a850d00cb1d81a6920272908ac61755c8a6ef882e5692fd5f6564bb9b8731059d321977ee74c71fbb2d260ad39a80bea17215685f1500e59ebcee059e9bac915ef869d8f8480f6e4e99190dc179b621b45f06695d27c6fc2ea3bef1fcfcbd6ae27f1a9b0c8aefd7d7e9afa2204ebffd97fea912b22b1170e8ff28a345b58d8fc01c954b9b826cc8a8833894c2d843c82dfee965705ba2cbbf7c4b7c74e3b82be31c822737392d1c280a43939103323824c3c9f86b255981dbe29868c229b9ee26b3b573a82704ddc09c789cb0a074d6ce85d8ec9efceabc7bbb52b4e45d64ad026cce572ca086aa595e315a1f7a4edc92c5fa5fbffac28022ebed77bbbe3717b9016d3075e46537c3707428cd3c4969cd599b52ae0951a8048ae4c3907cecc47a452952bbab8fbadd233537de51d4d6dd5a1b1c7426fe64027355ca328b7078de78d3390e7239ffb509c796c46d5b415b3966e7e9b0c963ab8522d3fd65be1fb08c284fe24a8a389daac6ae1182ab1a843615bd31fdc3b8d76f22de88d75df17336c3d53fb7bcb415fffdca2d06138e196b8ac5d8b37d775d533c09911ae9d41c1727584be0241425f67244894d19b27be073fb9b84f817451e17ab7ed9d23e2bee0d52804133c31039edd7a6c8fc60718c67fde478e3f289e0406cfa5543477bdec899be91743df5bdb5ffe8e1e57a2cd409d7e6222dade1827	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
108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe
2076	System.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
Token: SeDebugPrivilege	2076	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2076	System.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 2716	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	31
PID 1740 wrote to memory of 2716	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	31
PID 1740 wrote to memory of 2716	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	31
PID 1740 wrote to memory of 2568	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	32
PID 1740 wrote to memory of 2568	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	32
PID 1740 wrote to memory of 2568	1740	4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe	32
PID 2568 wrote to memory of 2768	2568	cmd.exe	35
PID 2568 wrote to memory of 2768	2568	cmd.exe	35
PID 2568 wrote to memory of 2768	2568	cmd.exe	35
PID 2716 wrote to memory of 108	2716	cmd.exe	36
PID 2716 wrote to memory of 108	2716	cmd.exe	36
PID 2716 wrote to memory of 108	2716	cmd.exe	36
PID 2568 wrote to memory of 2076	2568	cmd.exe	37
PID 2568 wrote to memory of 2076	2568	cmd.exe	37
PID 2568 wrote to memory of 2076	2568	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\4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe
"C:\Users\Admin\AppData\Local\Temp\4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1740
- 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:2716
- - 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:108
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpEC33.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2568
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2768
- - 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:2076

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\tmpEC33.tmp.bat

Filesize
150B

MD5
d68e31f71b6ac892fe1f4ca612221228

SHA1
1a4b67f497d7268c1821e9c14bae181a40ced822

SHA256
41197523e10bc4e436a3f12697161b5b4b4515e2f86fbdf4174f3cfa4a73093b

SHA512
3817d8b9c604217f4b7c84b1f6b6b6a7a3216f2b907fa1238ba601e9df3d903ce12879152dc9bcbdedd3292ec7b73af52c8bc3b1d37e6f22ed6be57c5b85d3ca

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
78KB

MD5
4f83c8f20cd7bcc3e5a57bddeab7bc7c

SHA1
29429616422b8729ea226e9b2b9ac2cc6dcdffa5

SHA256
4d07e703b5533ddcb62cae0dc623797b16a6a9dbc45e994f5f5a3f18191299cc

SHA512
f1267b99fe5e6571e7e1505e6a40b5d87adf87675bf2e7356855ef42251bcdc7a461e0c76a2d3d090373e4ae23721003b1c47619614749d1a0f25b441656b0f3

Download Submit
memory/1740-0-0x000007FEF52E3000-0x000007FEF52E4000-memory.dmp

Filesize
4KB

Download
memory/1740-1-0x0000000000240000-0x0000000000258000-memory.dmp

Filesize
96KB

Download
memory/1740-3-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

Filesize
9.9MB

Download
memory/1740-12-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

Filesize
9.9MB

Download
memory/1740-13-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

Filesize
9.9MB

Download
memory/2076-18-0x00000000012B0000-0x00000000012C8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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