asyncrat | ca0b1b8a0b420154b135f21acdc3612ad594ab31a56f0216979017514443c428

Analysis

max time kernel
123s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2023, 12:32

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General

Target
ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
Size 970KB
Sample230306-pq2rssbf61
SHA256 ca0b1b8a0b420154b135f21acdc3612ad594ab31a56f0216979017514443c428
MD5 b1537fae210eb7c2f8a87515c7e8e1db
SHA1 7180070c495e46021224f05ef236c28f3a45a2b6
SHA512 177b26201d2dd71cbd36c27d8f42c94da91ad35fe7304c83a9c811574ed66fe25cbbe3d51d87a5b3f119077da0767e21774f1521bbe582d5f4face5841368eef
SSDEEP 24576:H1Qwe3cOQ5dKZzx+OebLOtavdOni2P+03bur:HBTgZzXeetav/e+Kbu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

milanooffice.hopto.org:6606
milanooffice.hopto.org:7707
milanooffice.hopto.org:8808
milanooffice.hopto.org:4040
milanooffice.hopto.org:5058
milanooffice.hopto.org:80
51.68.180.4:6606
51.68.180.4:7707
51.68.180.4:8808
51.68.180.4:4040
51.68.180.4:5058
51.68.180.4:80

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
adobe.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
behavioral2/memory/4392-140-0x0000000000400000-0x000000000043A000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe

Executes dropped EXE 2 IoCs

pid	Process
1764	adobe.exe
3536	adobe.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4856 set thread context of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 1764 set thread context of 3536	1764	adobe.exe	109

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3340	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3492	timeout.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
Token: SeDebugPrivilege	3536	adobe.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4856 wrote to memory of 4392	4856	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	96
PID 4392 wrote to memory of 3180	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	101
PID 4392 wrote to memory of 3180	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	101
PID 4392 wrote to memory of 3180	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	101
PID 4392 wrote to memory of 1856	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	103
PID 4392 wrote to memory of 1856	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	103
PID 4392 wrote to memory of 1856	4392	ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe	103
PID 3180 wrote to memory of 3340	3180	cmd.exe	105
PID 3180 wrote to memory of 3340	3180	cmd.exe	105
PID 3180 wrote to memory of 3340	3180	cmd.exe	105
PID 1856 wrote to memory of 3492	1856	cmd.exe	106
PID 1856 wrote to memory of 3492	1856	cmd.exe	106
PID 1856 wrote to memory of 3492	1856	cmd.exe	106
PID 1856 wrote to memory of 1764	1856	cmd.exe	107
PID 1856 wrote to memory of 1764	1856	cmd.exe	107
PID 1856 wrote to memory of 1764	1856	cmd.exe	107
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109
PID 1764 wrote to memory of 3536	1764	adobe.exe	109

C:\Users\Admin\AppData\Local\Temp\ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Users\Admin\AppData\Local\Temp\ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe
  "C:\Users\Admin\AppData\Local\Temp\ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "adobe" /tr '"C:\Users\Admin\AppData\Roaming\adobe.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3180
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "adobe" /tr '"C:\Users\Admin\AppData\Roaming\adobe.exe"'
      4⤵
      Creates scheduled task(s)
      PID:3340
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2693.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:3492
  - - C:\Users\Admin\AppData\Roaming\adobe.exe
      "C:\Users\Admin\AppData\Roaming\adobe.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1764
    - - C:\Users\Admin\AppData\Roaming\adobe.exe
        
        "C:\Users\Admin\AppData\Roaming\adobe.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:3536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ORDER-MTC04RFQGENZAK1220637501220524622023.ex.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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adobe.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\adobe.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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tmp2693.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2693.tmp.bat
Size 149B
SHA256 92d096f1d43830f41d91249e4e03cc64f6b4a26503480d89990a4de53d201bfa
MD5 90d0a00a20e7bf7794b861cea9cfaa3e
SHA1 12cc95c06ebd6ddf8905f13a23a2e0cd67f2f2c6
SHA512 aab83a233ca2ea38218170cdf026037129a0919b4736fa271abd73c5df74ed56b44bcd92a866eb5ca27a712e396be5208941bdd9e2c72722b074cfa23659be5b
MD5 SHA1 SHA512

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adobe.exe

Path C:\Users\Admin\AppData\Roaming\adobe.exe
Size 970KB
SHA256 ca0b1b8a0b420154b135f21acdc3612ad594ab31a56f0216979017514443c428
MD5 b1537fae210eb7c2f8a87515c7e8e1db
SHA1 7180070c495e46021224f05ef236c28f3a45a2b6
SHA512 177b26201d2dd71cbd36c27d8f42c94da91ad35fe7304c83a9c811574ed66fe25cbbe3d51d87a5b3f119077da0767e21774f1521bbe582d5f4face5841368eef
SSDEEP 24576:H1Qwe3cOQ5dKZzx+OebLOtavdOni2P+03bur:HBTgZzXeetav/e+Kbu
MD5 SHA1 SHA512 SSDEEP

Submit Download

adobe.exe

Path C:\Users\Admin\AppData\Roaming\adobe.exe
Size 970KB
SHA256 ca0b1b8a0b420154b135f21acdc3612ad594ab31a56f0216979017514443c428
MD5 b1537fae210eb7c2f8a87515c7e8e1db
SHA1 7180070c495e46021224f05ef236c28f3a45a2b6
SHA512 177b26201d2dd71cbd36c27d8f42c94da91ad35fe7304c83a9c811574ed66fe25cbbe3d51d87a5b3f119077da0767e21774f1521bbe582d5f4face5841368eef
SSDEEP 24576:H1Qwe3cOQ5dKZzx+OebLOtavdOni2P+03bur:HBTgZzXeetav/e+Kbu
MD5 SHA1 SHA512 SSDEEP

Submit Download

adobe.exe

Path C:\Users\Admin\AppData\Roaming\adobe.exe
Size 970KB
SHA256 ca0b1b8a0b420154b135f21acdc3612ad594ab31a56f0216979017514443c428
MD5 b1537fae210eb7c2f8a87515c7e8e1db
SHA1 7180070c495e46021224f05ef236c28f3a45a2b6
SHA512 177b26201d2dd71cbd36c27d8f42c94da91ad35fe7304c83a9c811574ed66fe25cbbe3d51d87a5b3f119077da0767e21774f1521bbe582d5f4face5841368eef
SSDEEP 24576:H1Qwe3cOQ5dKZzx+OebLOtavdOni2P+03bur:HBTgZzXeetav/e+Kbu
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1764-151-0x0000000005AC0000-0x0000000005AD0000-memory.dmp

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memory/1764-152-0x0000000005AC0000-0x0000000005AD0000-memory.dmp

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memory/3536-159-0x0000000005720000-0x0000000005786000-memory.dmp

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memory/3536-158-0x0000000005120000-0x0000000005130000-memory.dmp

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memory/3536-157-0x0000000005120000-0x0000000005130000-memory.dmp

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memory/4392-140-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4392-143-0x0000000005920000-0x0000000005930000-memory.dmp

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memory/4856-135-0x0000000005960000-0x00000000059F2000-memory.dmp

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memory/4856-139-0x0000000005930000-0x0000000005940000-memory.dmp

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memory/4856-133-0x0000000000E80000-0x0000000000F78000-memory.dmp

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memory/4856-134-0x0000000005E30000-0x00000000063D4000-memory.dmp

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memory/4856-136-0x0000000005910000-0x000000000591A000-memory.dmp

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memory/4856-137-0x0000000005B90000-0x0000000005C2C000-memory.dmp

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memory/4856-138-0x0000000005930000-0x0000000005940000-memory.dmp

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