asyncrat | 6ba7a844aa103b2de7a4c715b8adfe0bb5a3bca4c3892afe68f605de6b66cada

General

Target

compiledarf.exe
Size

63KB
MD5

ea5d1b32226cdc5b47903ec7aeeeb405
SHA1

e8856792f77520b275be6c9d9ef432fc0e074c20
SHA256

6ba7a844aa103b2de7a4c715b8adfe0bb5a3bca4c3892afe68f605de6b66cada
SHA512

89ed2cb5b444e1cf96f7e8ee46e701ee55e0377059a3cf3180de2bbec719e9f11c89b3746793e3bd0ce00f2daa58ea46bc6cee9a020f8c06ad89f6bbae448d72
SSDEEP

1536:9oiDBldX7Gt4Jb1Gbb0wsUvAVGP1ZVclN:2mldX7Gt4Gbb03UDzY

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

127.0.0.1:7707

127.0.0.1:61882

benefits-required.gl.at.ply.gg:23198:7707

benefits-required.gl.at.ply.gg:23198:61882

Mutex

roaroaroaraoroaroaraoraoraoarororrohrorororoaroaaoaoaoaroaroar

Attributes

delay
1
install
true
install_file
windows defender firewall.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001c00000002aa73-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
4584	windows defender firewall.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
3904	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
1928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe
3272	compiledarf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3272	compiledarf.exe
Token: SeDebugPrivilege	4584	windows defender firewall.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 1712	3272	compiledarf.exe	77
PID 3272 wrote to memory of 1712	3272	compiledarf.exe	77
PID 3272 wrote to memory of 2352	3272	compiledarf.exe	79
PID 3272 wrote to memory of 2352	3272	compiledarf.exe	79
PID 2352 wrote to memory of 3904	2352	cmd.exe	82
PID 2352 wrote to memory of 3904	2352	cmd.exe	82
PID 1712 wrote to memory of 1928	1712	cmd.exe	81
PID 1712 wrote to memory of 1928	1712	cmd.exe	81
PID 2352 wrote to memory of 4584	2352	cmd.exe	83
PID 2352 wrote to memory of 4584	2352	cmd.exe	83

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\compiledarf.exe
"C:\Users\Admin\AppData\Local\Temp\compiledarf.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows defender firewall" /tr '"C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "windows defender firewall" /tr '"C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1928
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6448.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3904
- - C:\Users\Admin\AppData\Roaming\windows defender firewall.exe
    "C:\Users\Admin\AppData\Roaming\windows defender firewall.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4584

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6448.tmp.bat

Filesize
169B

MD5
ddd1ca9e0218db61cd99cf9e5e9e6536

SHA1
18a6022296440bdeca7d42e91be17f0256efb6c6

SHA256
c11148e2cb3f3c08665c16ff421f171ea516e1f010dcc58e01d9b1982a29d825

SHA512
dad8813da28b2571c0239d78fd0c17ad1bfbb17aa4a136055b25c052462a1cb4119df9b498bdacb858d52dee1827b13448a10707028341c938ad5dd9cea5a8c9

Download Submit
C:\Users\Admin\AppData\Roaming\windows defender firewall.exe

Filesize
63KB

MD5
ea5d1b32226cdc5b47903ec7aeeeb405

SHA1
e8856792f77520b275be6c9d9ef432fc0e074c20

SHA256
6ba7a844aa103b2de7a4c715b8adfe0bb5a3bca4c3892afe68f605de6b66cada

SHA512
89ed2cb5b444e1cf96f7e8ee46e701ee55e0377059a3cf3180de2bbec719e9f11c89b3746793e3bd0ce00f2daa58ea46bc6cee9a020f8c06ad89f6bbae448d72

Download Submit
memory/3272-0-0x00007FFCFBEF3000-0x00007FFCFBEF5000-memory.dmp

Filesize
8KB

Download
memory/3272-1-0x00000000008F0000-0x0000000000906000-memory.dmp

Filesize
88KB

Download
memory/3272-2-0x00007FFCFBEF0000-0x00007FFCFC9B2000-memory.dmp

Filesize
10.8MB

Download
memory/3272-3-0x00007FFCFBEF0000-0x00007FFCFC9B2000-memory.dmp

Filesize
10.8MB

Download
memory/3272-9-0x00007FFCFBEF0000-0x00007FFCFC9B2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads