asyncrat | 3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe

General

Target

3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
Size

98KB
MD5

32ea99984c4ac087a13d62ee493c0e5b
SHA1

b74425cc3b69bfe2f8b5ac6f5d0e661d8a646f5e
SHA256

3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe
SHA512

5064c78c2b8e145105eac87c154a13eb939f8dd4eac59a09c48fd8703195cbc8ed979302b1b6bc5d5b552dc4baf6584175c986d1e721c6f8d55ecc6ae02f0e2f
SSDEEP

3072:oUvicxK8WmPMV2e9VdQsH1bf7eQhvWc3fBY:ocWmPMV2aesVbqKT3p

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

147.185.221.21:4449

147.185.221.21:6703

147.185.221.21:5552

Mutex

iyxtncnzhjunacoyx

Attributes

delay
1
install
true
install_file
EaxSet.exe
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
behavioral1/files/0x0008000000016d28-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
3040	EaxSet.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
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

pid	Process
2704	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
2908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe
3040	EaxSet.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
Token: SeDebugPrivilege	3040	EaxSet.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3040	EaxSet.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 2804	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	30
PID 1512 wrote to memory of 2804	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	30
PID 1512 wrote to memory of 2804	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	30
PID 1512 wrote to memory of 2944	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	31
PID 1512 wrote to memory of 2944	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	31
PID 1512 wrote to memory of 2944	1512	3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe	31
PID 2804 wrote to memory of 2908	2804	cmd.exe	34
PID 2804 wrote to memory of 2908	2804	cmd.exe	34
PID 2804 wrote to memory of 2908	2804	cmd.exe	34
PID 2944 wrote to memory of 2704	2944	cmd.exe	35
PID 2944 wrote to memory of 2704	2944	cmd.exe	35
PID 2944 wrote to memory of 2704	2944	cmd.exe	35
PID 2944 wrote to memory of 3040	2944	cmd.exe	36
PID 2944 wrote to memory of 3040	2944	cmd.exe	36
PID 2944 wrote to memory of 3040	2944	cmd.exe	36

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\3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe
"C:\Users\Admin\AppData\Local\Temp\3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "EaxSet" /tr '"C:\Users\Admin\AppData\Roaming\EaxSet.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "EaxSet" /tr '"C:\Users\Admin\AppData\Roaming\EaxSet.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2908
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpC3EB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2944
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2704
- - C:\Users\Admin\AppData\Roaming\EaxSet.exe
    "C:\Users\Admin\AppData\Roaming\EaxSet.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3040

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

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CabDD85.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar543D.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC3EB.tmp.bat

Filesize
150B

MD5
c17978955e4cfc274ee8512dfbc6c871

SHA1
5438c402d69d3c21a760792bad3ba591ae4b0a64

SHA256
212b206e7e34cc659c6b93f9899a2f8ce04842ee823729835fd657f37250e6c0

SHA512
4786cc886434d650e306f14e3a71d67ccf17c1eb4b32fc963eb90aaa0f3af3813934be392bb269df453e51b4449feb1f3e942ee0f5ce981eaf9dad13e0c619dc

Download Submit
C:\Users\Admin\AppData\Roaming\EaxSet.exe

Filesize
98KB

MD5
32ea99984c4ac087a13d62ee493c0e5b

SHA1
b74425cc3b69bfe2f8b5ac6f5d0e661d8a646f5e

SHA256
3d4fae60580e8c72482beea430dea8f3ed64e64bce3abe15150a26de0fffa7fe

SHA512
5064c78c2b8e145105eac87c154a13eb939f8dd4eac59a09c48fd8703195cbc8ed979302b1b6bc5d5b552dc4baf6584175c986d1e721c6f8d55ecc6ae02f0e2f

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/1512-0-0x000007FEF59B3000-0x000007FEF59B4000-memory.dmp

Filesize
4KB

Download
memory/1512-1-0x0000000000360000-0x000000000037E000-memory.dmp

Filesize
120KB

Download
memory/1512-3-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/1512-11-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/1512-14-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/3040-18-0x0000000001040000-0x000000000105E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads