asyncrat | 0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521

General

Target

0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
Size

247KB
MD5

851269fc86de5d91e5f2db1b2b34cb6e
SHA1

6103dab45c98bddef65b6eed235a60159d458526
SHA256

0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521
SHA512

c01c7d2ec52d55ece6f88eeb9c5ecf260ef9b59fd3f08ad42e4ed582b24bd482fcfd334375177b032564f567af6d195f7627249abe1e428f52f6c2806783acfc
SSDEEP

6144:/bwmPMVWrVbVPwF9kfK8rpClz0KBb6o589GHWHWujiSPbp:/bw8n5gBuj/PV

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

zedtklncvg

Attributes

delay
1
install
true
install_file
update.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/f2T8NYnM

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/0x0018000000016dbf-17.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2672	update.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
5	pastebin.com
6	7.tcp.eu.ngrok.io
14	7.tcp.eu.ngrok.io
20	7.tcp.eu.ngrok.io
4	pastebin.com

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
2572	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
2576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe
2672	update.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
Token: SeDebugPrivilege	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
Token: SeDebugPrivilege	2672	update.exe
Token: SeDebugPrivilege	2672	update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2672	update.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 2784	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	30
PID 824 wrote to memory of 2784	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	30
PID 824 wrote to memory of 2784	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	30
PID 824 wrote to memory of 2692	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	32
PID 824 wrote to memory of 2692	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	32
PID 824 wrote to memory of 2692	824	0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe	32
PID 2784 wrote to memory of 2576	2784	cmd.exe	34
PID 2784 wrote to memory of 2576	2784	cmd.exe	34
PID 2784 wrote to memory of 2576	2784	cmd.exe	34
PID 2692 wrote to memory of 2572	2692	cmd.exe	35
PID 2692 wrote to memory of 2572	2692	cmd.exe	35
PID 2692 wrote to memory of 2572	2692	cmd.exe	35
PID 2692 wrote to memory of 2672	2692	cmd.exe	36
PID 2692 wrote to memory of 2672	2692	cmd.exe	36
PID 2692 wrote to memory of 2672	2692	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\0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe
"C:\Users\Admin\AppData\Local\Temp\0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824
- 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:2784
- - 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:2576
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp24C0.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2572
- - 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:2672

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp24C0.tmp.bat

Filesize
150B

MD5
e21547e5155c44bb13310dc1b9ae2a19

SHA1
2b1ae9e937140af14d128103e6ca0465efc7fa15

SHA256
7acd1b7743a15468d548d21eb7a5a011b9bc7e342f5b46049af5256eb349dcfb

SHA512
51b31c50e1014cbfb3984feb4ac5ce88291e34996974f18a29141c25a612ab38e89195baf1095f8fb10816086a45d7740601bfafeda6320b312628453a264fe3

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
247KB

MD5
851269fc86de5d91e5f2db1b2b34cb6e

SHA1
6103dab45c98bddef65b6eed235a60159d458526

SHA256
0b7987bd9f7cbee60c4c809f22ecda6f314a0366f0704ed474626ac5f7af3521

SHA512
c01c7d2ec52d55ece6f88eeb9c5ecf260ef9b59fd3f08ad42e4ed582b24bd482fcfd334375177b032564f567af6d195f7627249abe1e428f52f6c2806783acfc

Download Submit
memory/824-0-0x000007FEF6163000-0x000007FEF6164000-memory.dmp

Filesize
4KB

Download
memory/824-1-0x0000000000220000-0x0000000000264000-memory.dmp

Filesize
272KB

Download
memory/824-3-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/824-12-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/824-14-0x000007FEF6160000-0x000007FEF6B4C000-memory.dmp

Filesize
9.9MB

Download
memory/2672-18-0x0000000000DB0000-0x0000000000DF4000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads