asyncrat | 2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9

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 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2540-1-0x0000000000D10000-0x0000000000D48000-memory.dmp	VenomRAT
C:\Users\Admin\AppData\Roaming\Update.exe	VenomRAT
behavioral1/memory/2884-18-0x0000000000930000-0x0000000000968000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Update.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Update.exe

pid process

2884 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

2756 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

2744 schtasks.exe

pid	process
2884	Update.exe

pid	process
2756	timeout.exe

pid	process
2744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exeUpdate.exe

pid	process
2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe
2884	Update.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exeUpdate.exe

description	pid	process
Token: SeDebugPrivilege	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe
Token: SeDebugPrivilege	2884	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Update.exe

pid process

2884 Update.exe

pid	process
2884	Update.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.execmd.execmd.exe

description	pid	process	target process
PID 2540 wrote to memory of 2076	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2540 wrote to memory of 2076	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2540 wrote to memory of 2076	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2540 wrote to memory of 2708	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2540 wrote to memory of 2708	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2540 wrote to memory of 2708	2540	2a5dac302572ede5da5d53df170d5882937027b58290b6ea60e24478453276c9.exe	cmd.exe
PID 2708 wrote to memory of 2756	2708	cmd.exe	timeout.exe
PID 2708 wrote to memory of 2756	2708	cmd.exe	timeout.exe
PID 2708 wrote to memory of 2756	2708	cmd.exe	timeout.exe
PID 2076 wrote to memory of 2744	2076	cmd.exe	schtasks.exe
PID 2076 wrote to memory of 2744	2076	cmd.exe	schtasks.exe
PID 2076 wrote to memory of 2744	2076	cmd.exe	schtasks.exe
PID 2708 wrote to memory of 2884	2708	cmd.exe	Update.exe
PID 2708 wrote to memory of 2884	2708	cmd.exe	Update.exe
PID 2708 wrote to memory of 2884	2708	cmd.exe	Update.exe

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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540
- 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:2076
- - 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:2744
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1CD4.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2756
- - 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:2884

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\tmp1CD4.tmp.bat

Filesize
150B

MD5
36940753ad4b4ddc10b8e7b1341f3274

SHA1
c69b191bb0db6231cb1be70f6e3eef893e33f033

SHA256
a5dfae9bb41ea9061426e623e4c1eff591901418da1713b40c350404f467c385

SHA512
3498b902d06bb2c528c01b5c9add3a31468371f80a57adca23a2268ec74b848e90164aedc850759b41fc26c260e4e13080b648ed5f8d1c65e8a138c336a0b2f1

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/2540-0-0x000007FEF5583000-0x000007FEF5584000-memory.dmp

Filesize
4KB

Download
memory/2540-1-0x0000000000D10000-0x0000000000D48000-memory.dmp

Filesize
224KB

Download
memory/2540-3-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

Filesize
9.9MB

Download
memory/2540-12-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

Filesize
9.9MB

Download
memory/2540-14-0x000007FEF5580000-0x000007FEF5F6C000-memory.dmp

Filesize
9.9MB

Download
memory/2884-18-0x0000000000930000-0x0000000000968000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads