asyncrat | 2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9

Analysis

max time kernel
148s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 18:39

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General

Target

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
Size

204KB
MD5

cb4322618b0b4db058a877a4496155d6
SHA1

701330516ff914a042f484d123f940a45175b2fc
SHA256

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9
SHA512

f45e435db334cec2c39fdc3ab44be26ccff60f75a883430794bdf7a208c6e033b666b22fe93d8b736d336d07b539824d57a884df62004500bbb8e2318f7757af
SSDEEP

3072:bUQcxeNykmPMV/prEH1bxmFQPWwfBtOEp7ybMj/0vU7yZED+CDgby/Y:bWkmPMV/ZEVbMmW6mEpmbMjgU7yZf8

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Mutex

ewhzrclekutersfjwb

Attributes

delay
1
install
true
install_file
Update.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 2 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral2/memory/2016-1-0x00000000007C0000-0x00000000007F8000-memory.dmp	VenomRAT
behavioral2/files/0x0002000000022a8b-12.dat	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/files/0x0002000000022a8b-12.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe

Executes dropped EXE 1 IoCs

Processes:

Update.exe

pid	Process
4600	Update.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
1040	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
3128	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exeUpdate.exe

pid	Process
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe
4600	Update.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exeUpdate.exe

description	pid	Process
Token: SeDebugPrivilege	2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
Token: SeDebugPrivilege	4600	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Update.exe

pid	Process
4600	Update.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.execmd.execmd.exe

description	pid	Process	procid_target
PID 2016 wrote to memory of 4412	2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	88
PID 2016 wrote to memory of 4412	2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	88
PID 2016 wrote to memory of 4536	2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	89
PID 2016 wrote to memory of 4536	2016	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	89
PID 4412 wrote to memory of 3128	4412	cmd.exe	92
PID 4412 wrote to memory of 3128	4412	cmd.exe	92
PID 4536 wrote to memory of 1040	4536	cmd.exe	93
PID 4536 wrote to memory of 1040	4536	cmd.exe	93
PID 4536 wrote to memory of 4600	4536	cmd.exe	98
PID 4536 wrote to memory of 4600	4536	cmd.exe	98

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\2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
"C:\Users\Admin\AppData\Local\Temp\2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Update" /tr '"C:\Users\Admin\AppData\Roaming\Update.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3128
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9470.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4536
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1040
- - C:\Users\Admin\AppData\Roaming\Update.exe
    "C:\Users\Admin\AppData\Roaming\Update.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4600

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9470.tmp.bat

Filesize
150B

MD5
ea0d3a9bfbd1967ae9795c1b6f0e7f90

SHA1
b357d6ad11395a5a4565044cad46bf952ac023c7

SHA256
a77e2813d5fce16fafa275dfa4aa3a7d3d604857b7ea61b277b8844e47f0430d

SHA512
dff748d0b4645613b7be0cd51af7eb1977b3d3a1362d65915667111d544f63df569fe0aa2083338a6f82b2ce521ed1d2d939ac74bb093d78520f4593ba1ce349

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\Update.exe

Filesize
204KB

MD5
cb4322618b0b4db058a877a4496155d6

SHA1
701330516ff914a042f484d123f940a45175b2fc

SHA256
2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9

SHA512
f45e435db334cec2c39fdc3ab44be26ccff60f75a883430794bdf7a208c6e033b666b22fe93d8b736d336d07b539824d57a884df62004500bbb8e2318f7757af

Download Submit
memory/2016-0-0x00007FFC72B73000-0x00007FFC72B75000-memory.dmp

Filesize
8KB

Download
memory/2016-1-0x00000000007C0000-0x00000000007F8000-memory.dmp

Filesize
224KB

Download
memory/2016-3-0x00007FFC72B70000-0x00007FFC73631000-memory.dmp

Filesize
10.8MB

Download
memory/2016-8-0x00007FFC72B70000-0x00007FFC73631000-memory.dmp

Filesize
10.8MB

Download
memory/2016-9-0x00007FFC72B70000-0x00007FFC73631000-memory.dmp

Filesize
10.8MB

Download