asyncrat | 068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc

Analysis

max time kernel
150s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 00:59

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General

Target
068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
Size 20.8MB
Sample250328-bcgb2ssl15
SHA256 068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc
MD5 a850018996dace168754fcf5da674b81
SHA1 8c893659bca023f30cd9fd4348c4b383caee8e43
SHA512 75a305c67d0e8e6ab34f8f593fcc0f9a89d5c40c8b231657751b63e855478bb3787851cd0e319743ad1aa21e4ca15d398f2a91d01448de146e60c5bdf4b286f0
SSDEEP 393216:w3Tc4BVJHWsi1B8k/z3sXCeIxO3Y3HmgEwP6cv/3X38WdGe:wQ4BbHql/zcXz3Y3Qwv3X38Wj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat venomrat eulenv4 defense_evasion discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

EulenV4

Mutex

chxtzuezuve

Attributes

delay
1
install
true
install_file
svchost.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/KnhCGRrn

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/files/0x0007000000016dd1-10.dat	VenomRAT
behavioral1/memory/3012-14-0x00000000009E0000-0x00000000009F8000-memory.dmp	VenomRAT
behavioral1/memory/2976-103-0x0000000000AB0000-0x0000000000AC8000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0007000000016dd1-10.dat	family_asyncrat

Executes dropped EXE 5 IoCs

pid	Process
1444	runtime.exe
3012	svchost.exe
2824	loader.exe
2972	loader.exe
2976	svchost.exe

Loads dropped DLL 5 IoCs

pid	Process
1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
2824	loader.exe
2972	loader.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2928	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
2900	schtasks.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
3068	powershell.exe
3012	svchost.exe
3012	svchost.exe
3012	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe
2976	svchost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	svchost.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	3012	svchost.exe
Token: SeDebugPrivilege	2976	svchost.exe
Token: SeDebugPrivilege	2976	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2976	svchost.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 3068	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	30
PID 1992 wrote to memory of 3068	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	30
PID 1992 wrote to memory of 3068	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	30
PID 1992 wrote to memory of 3068	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	30
PID 1992 wrote to memory of 1444	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	32
PID 1992 wrote to memory of 1444	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	32
PID 1992 wrote to memory of 1444	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	32
PID 1992 wrote to memory of 1444	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	32
PID 1992 wrote to memory of 3012	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	33
PID 1992 wrote to memory of 3012	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	33
PID 1992 wrote to memory of 3012	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	33
PID 1992 wrote to memory of 3012	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	33
PID 1992 wrote to memory of 2824	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	34
PID 1992 wrote to memory of 2824	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	34
PID 1992 wrote to memory of 2824	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	34
PID 1992 wrote to memory of 2824	1992	068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe	34
PID 1444 wrote to memory of 2268	1444	runtime.exe	35
PID 1444 wrote to memory of 2268	1444	runtime.exe	35
PID 1444 wrote to memory of 2268	1444	runtime.exe	35
PID 2824 wrote to memory of 2972	2824	loader.exe	36
PID 2824 wrote to memory of 2972	2824	loader.exe	36
PID 2824 wrote to memory of 2972	2824	loader.exe	36
PID 3012 wrote to memory of 2008	3012	svchost.exe	37
PID 3012 wrote to memory of 2008	3012	svchost.exe	37
PID 3012 wrote to memory of 2008	3012	svchost.exe	37
PID 3012 wrote to memory of 1512	3012	svchost.exe	38
PID 3012 wrote to memory of 1512	3012	svchost.exe	38
PID 3012 wrote to memory of 1512	3012	svchost.exe	38
PID 2008 wrote to memory of 2900	2008	cmd.exe	41
PID 2008 wrote to memory of 2900	2008	cmd.exe	41
PID 2008 wrote to memory of 2900	2008	cmd.exe	41
PID 1512 wrote to memory of 2928	1512	cmd.exe	42
PID 1512 wrote to memory of 2928	1512	cmd.exe	42
PID 1512 wrote to memory of 2928	1512	cmd.exe	42
PID 1512 wrote to memory of 2976	1512	cmd.exe	44
PID 1512 wrote to memory of 2976	1512	cmd.exe	44
PID 1512 wrote to memory of 2976	1512	cmd.exe	44

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\068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe
"C:\Users\Admin\AppData\Local\Temp\068f0b81ba4d831dec722c6c86d4d328ca80abe5ef30bda755499064de812ccc.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHAAaABuACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGwAdwBhACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHoAZwB5ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGgAYQBwACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3068
- C:\Users\Admin\AppData\Local\Temp\runtime.exe
  "C:\Users\Admin\AppData\Local\Temp\runtime.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1444 -s 532
    3⤵
    PID:2268
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3012
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2008
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2900
- - C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpC449.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1512
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:2928
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2976
- C:\Users\Admin\AppData\Local\Temp\loader.exe
  "C:\Users\Admin\AppData\Local\Temp\loader.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Users\Admin\AppData\Local\Temp\onefile_2824_133875971920188000\loader.exe
    C:\Users\Admin\AppData\Local\Temp\loader.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2972

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

Obfuscated Files or Information

T1027

Command Obfuscation

T1027.010

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Size 71KB
SHA256 d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755
MD5 83142242e97b8953c386f988aa694e4a
SHA1 833ed12fc15b356136dcdd27c61a50f59c5c7d50
SHA512 bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10
SSDEEP 1536:krha8mqJ7v3CeFMz/akys7nSTK7QMuK+C/Oh5:kAOFq+Mba9Ok7C/O/
MD5 SHA1 SHA512 SSDEEP

Submit Download

TarF500.tmp

Path C:\Users\Admin\AppData\Local\Temp\TarF500.tmp
Size 183KB
SHA256 ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673
MD5 109cab5505f5e065b63d01361467a83b
SHA1 4ed78955b9272a9ed689b51bf2bf4a86a25e53fc
SHA512 753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc
SSDEEP 1536:wAZwoJ+lCHsTRvyqgCyiWlUDNWdm1wpSru2b0PwjY/z02DTr3rmt6mxIC:wsdJ+RTRaXCyXdmASru2bajbdA
MD5 SHA1 SHA512 SSDEEP

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python311.dll

Path C:\Users\Admin\AppData\Local\Temp\onefile_2824_133875971920188000\python311.dll
Size 5.5MB
SHA256 a0cf640e756875c25c12b4a38ba5f2772e8e512036e2ac59eb8567bf05ffbfb7
MD5 9a24c8c35e4ac4b1597124c1dcbebe0f
SHA1 f59782a4923a30118b97e01a7f8db69b92d8382a
SHA512 9d9336bf1f0d3bc9ce4a636a5f4e52c5f9487f51f00614fc4a34854a315ce7ea8be328153812dbd67c45c75001818fa63317eba15a6c9a024fa9f2cab163165b
SSDEEP 98304:JdHwQkq3AAtsPv3XXTVEspHBMp4SsPxQpe2bx:JdHwQkq3AMsPvHXSpAxQpe2V
MD5 SHA1 SHA512 SSDEEP

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runtime.exe

Path C:\Users\Admin\AppData\Local\Temp\runtime.exe
Size 58KB
SHA256 bd9f8e352f172f3a5ad106388d1fd67ed09f419f1d100bd89e7980e25d273526
MD5 1ab99ff9dfb2017db1a59403f5ca1c2b
SHA1 4e43875075d8dd21755aa8dd91365d561be43594
SHA512 44bb3c86caa4b2c0c63251d602f03aa5a38d099ece58462dc78d38740981733b731711250b34db2a93c8b2a1fab7e707e29ee010b24129d762daed226d72ca4a
SSDEEP 1536:O0lYjFoPdGbUg87KafgyjCkS1sGXAXPogRZwobOemdM:O0lYjFoPdGbrqIyjCJ1s0A/Z3SDu
MD5 SHA1 SHA512 SSDEEP

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svchost.exe

Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
Size 74KB
SHA256 adbce5e454bbc8b27c4ac87f70dee8d622395b541736d6f0af027dd94e454cb7
MD5 85f89a5f5806117cc82aec6e1f89cd13
SHA1 735d2331d6bc90498f3f1405af0dffa37b136e5d
SHA512 038c96c575f0a1204a4159cd7ac9262f7e1447be9bba28278ddcdd6294280f40399cfb06a89e40460114306c9b5a33d466ac2de7af58575b80cad0921f4a979d
SSDEEP 1536:WUqkcx5v/5CxSPMVBAMv/IjH1bOx+TYKiAQzcjRVclN:WUDcx5vx2SPMVBAMvyH1bO882Qm7Y
MD5 SHA1 SHA512 SSDEEP

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tmpC449.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpC449.tmp.bat
Size 151B
SHA256 763027e7248f8489b548fe1e0314958412015d4df3dd2dce0fc7b3e6baf79b2f
MD5 f2e416a46a3cc853b4616757e83e079a
SHA1 b359a0705f57fce2fdefe6b2974571e46b4a33ef
SHA512 09f9fb7d7b02623674cdc96c8a008aca52e2decc42ca21b7ea279da896980e997740f7e7b74e326cb452ae5e27d73d98245afecff016ad12c346141ba4d1bece
MD5 SHA1 SHA512

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DataLogs.conf

Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
Size 8B
SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
MD5 cf759e4c5f14fe3eec41b87ed756cea8
SHA1 c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA512 c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
MD5 SHA1 SHA512

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loader.exe

Path \Users\Admin\AppData\Local\Temp\loader.exe
Size 20.7MB
SHA256 ac9bb0231e3e3e4305a2cf44708dbf7e0e6cfa286faac9bc687c364a4070e398
MD5 4ed0d5143664ce4d6a25072f1c465616
SHA1 e560ecd9fe3a6754d72493d9e0e796e3837be5df
SHA512 d763f44d7a5bff11a3a75c7b4182362ad63d33618402480aa3c993b1ed8f21dfda0e70cf25e71e33ffac5f9ca541fa0a3c96c53abb510fc36a5917373528f466
SSDEEP 393216:tC9SHNFlhhy8P7IW3CIHmtW633O6Zq0bhgWtLNNK66Rxul+UzSxw0bA+vu1jc:tscry/YmI6nO69+eLNNK6mxgzSyedvsj
MD5 SHA1 SHA512 SSDEEP

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loader.exe

Path \Users\Admin\AppData\Local\Temp\onefile_2824_133875971920188000\loader.exe
Size 12.0MB
SHA256 45215606ecea7c6d2624d05ee6b0703beb9d0abdf42566c77ccb89576338b8c6
MD5 d40e357c84cda7eb31419a69ae038d97
SHA1 853d03a0cfe3aa0f21d16b2da378e4554c71a088
SHA512 82a67c7be3fef7d4deb4d1c1e85d392fdfb16e830f9574868c8bcc42aa3eb8a3435b0d3d0786a1015af8f8b41f66074a1825a24eb559e42b164aca71ee3dca2f
SSDEEP 98304:MtoyVt91Tlkt01sUKgqHSmIwZHZw+U4H3sf7RwtfOTecAJecrOEGNzgQ4v52Lok1:MttiZT8nA51xitrDQO
MD5 SHA1 SHA512 SSDEEP

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memory/1444-15-0x0000000000150000-0x0000000000164000-memory.dmp

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memory/2824-169-0x000000013F510000-0x00000001409EA000-memory.dmp

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memory/2972-105-0x000000013F4A0000-0x00000001400D0000-memory.dmp

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memory/2976-103-0x0000000000AB0000-0x0000000000AC8000-memory.dmp

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memory/3012-14-0x00000000009E0000-0x00000000009F8000-memory.dmp

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