asyncrat | 9e7370614a11179b71851be277e8fd2fde8dfd7f348d830ed9d0a1954ab818f4

General

Target

5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe
Size

47KB
MD5

5950a146dc73c30a51f3a6c29b37cf93
SHA1

5293e3447822240bcf9a47092f448ab9689b05bb
SHA256

9e7370614a11179b71851be277e8fd2fde8dfd7f348d830ed9d0a1954ab818f4
SHA512

ed90aa5ecd6c54968306b2129dcfa434b3bc5b0341cd48cfcf617495453b92ae4a88da9b38bb0ee0d9cad1e934f0afa7bc6de5bef82b66eb0789e7d3cacf455e
SSDEEP

768:+uyKFTMIGZ8btAWUumy6mo2q8JXDFDyfZpPItshen76X0bjY1y1l0VQcz5E4CPiB:+uyKFTMtkY2DGc6hen7Lb0ol0hz5x31H

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

20.36.20.111:1604

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
svchost.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/0x000700000001211a-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2656	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
3052	cmd.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

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
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe
1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe
1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe
Token: SeDebugPrivilege	2656	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2632	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2632	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2632	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	30
PID 1760 wrote to memory of 2632	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	30
PID 1760 wrote to memory of 3052	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	32
PID 1760 wrote to memory of 3052	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	32
PID 1760 wrote to memory of 3052	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	32
PID 1760 wrote to memory of 3052	1760	5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe	32
PID 2632 wrote to memory of 2680	2632	cmd.exe	34
PID 2632 wrote to memory of 2680	2632	cmd.exe	34
PID 2632 wrote to memory of 2680	2632	cmd.exe	34
PID 2632 wrote to memory of 2680	2632	cmd.exe	34
PID 3052 wrote to memory of 2704	3052	cmd.exe	35
PID 3052 wrote to memory of 2704	3052	cmd.exe	35
PID 3052 wrote to memory of 2704	3052	cmd.exe	35
PID 3052 wrote to memory of 2704	3052	cmd.exe	35
PID 3052 wrote to memory of 2656	3052	cmd.exe	36
PID 3052 wrote to memory of 2656	3052	cmd.exe	36
PID 3052 wrote to memory of 2656	3052	cmd.exe	36
PID 3052 wrote to memory of 2656	3052	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5950a146dc73c30a51f3a6c29b37cf93_JaffaCakes118.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2680
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpFC59.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2704
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2656

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFC59.tmp.bat

Filesize
151B

MD5
61e736de2123b8ffe6476514557876a5

SHA1
6c1a401ee7013d54aae5fc505f34b4610f93b2bf

SHA256
1e082b3ca76d8cb67c2302a6a761d4a89bde5ec20aff1097fd5cc7ab7565d611

SHA512
a337eecbcc34d7f6fff59e861720914592ac9fd0576b0e4a7512dc5d98193ef8905d7910cda2d454d417c4820ba7cd2e87719dd55f3b0c460ef33ab31fcbdb68

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe

Filesize
47KB

MD5
5950a146dc73c30a51f3a6c29b37cf93

SHA1
5293e3447822240bcf9a47092f448ab9689b05bb

SHA256
9e7370614a11179b71851be277e8fd2fde8dfd7f348d830ed9d0a1954ab818f4

SHA512
ed90aa5ecd6c54968306b2129dcfa434b3bc5b0341cd48cfcf617495453b92ae4a88da9b38bb0ee0d9cad1e934f0afa7bc6de5bef82b66eb0789e7d3cacf455e

Download Submit
memory/1760-0-0x0000000074B9E000-0x0000000074B9F000-memory.dmp

Filesize
4KB

Download
memory/1760-1-0x0000000000DE0000-0x0000000000DF2000-memory.dmp

Filesize
72KB

Download
memory/1760-2-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/1760-12-0x0000000074B90000-0x000000007527E000-memory.dmp

Filesize
6.9MB

Download
memory/2656-16-0x00000000013B0000-0x00000000013C2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads