asyncrat | 84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89

Analysis

max time kernel
46s
max time network
51s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13-08-2024 13:25

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General

Target

84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
Size

63KB
MD5

8b5d09ffbbfc800578025d9aff31ac68
SHA1

cdeea0a7ffb18502d7cae832a13f6294285904ae
SHA256

84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89
SHA512

a22e73029e4387b70c4242a2beef317b96a32996d523a76580914cd5582b3580f0de9d691aa1e688f74042463f7f8c10c2cd5ce3a3d2b178656c0fd84106a589
SSDEEP

768:spDxI6PfZ778/IC8A+X3uazcBRL5JTk1+T4KSBGHmDbD/ph0oX/CLcCaSuEdpqKX:+62ZBwdSJYUbdh9/tiuEdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

mode-clusters.gl.at.ply.gg:36304

Attributes

delay
1
install
true
install_file
Defender.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/0x002c000000016caf-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2732	Defender.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 2 IoCs

evasion

pid	Process
2828	timeout.exe
588	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
1904	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
Token: SeDebugPrivilege	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
Token: SeDebugPrivilege	2732	Defender.exe
Token: SeDebugPrivilege	2732	Defender.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 2824	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	30
PID 1948 wrote to memory of 2824	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	30
PID 1948 wrote to memory of 2824	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	30
PID 1948 wrote to memory of 2932	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	32
PID 1948 wrote to memory of 2932	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	32
PID 1948 wrote to memory of 2932	1948	84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe	32
PID 2824 wrote to memory of 1904	2824	cmd.exe	34
PID 2824 wrote to memory of 1904	2824	cmd.exe	34
PID 2824 wrote to memory of 1904	2824	cmd.exe	34
PID 2932 wrote to memory of 2828	2932	cmd.exe	35
PID 2932 wrote to memory of 2828	2932	cmd.exe	35
PID 2932 wrote to memory of 2828	2932	cmd.exe	35
PID 2932 wrote to memory of 2732	2932	cmd.exe	36
PID 2932 wrote to memory of 2732	2932	cmd.exe	36
PID 2932 wrote to memory of 2732	2932	cmd.exe	36
PID 2732 wrote to memory of 2988	2732	Defender.exe	38
PID 2732 wrote to memory of 2988	2732	Defender.exe	38
PID 2732 wrote to memory of 2988	2732	Defender.exe	38
PID 2732 wrote to memory of 980	2732	Defender.exe	40
PID 2732 wrote to memory of 980	2732	Defender.exe	40
PID 2732 wrote to memory of 980	2732	Defender.exe	40
PID 2988 wrote to memory of 1228	2988	cmd.exe	42
PID 2988 wrote to memory of 1228	2988	cmd.exe	42
PID 2988 wrote to memory of 1228	2988	cmd.exe	42
PID 980 wrote to memory of 588	980	cmd.exe	43
PID 980 wrote to memory of 588	980	cmd.exe	43
PID 980 wrote to memory of 588	980	cmd.exe	43

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\84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe
"C:\Users\Admin\AppData\Local\Temp\84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1904
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpC41A.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2828
- - C:\Users\Admin\AppData\Roaming\Defender.exe
    "C:\Users\Admin\AppData\Roaming\Defender.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Defender"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2988
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /delete /f /tn "Defender"
        5⤵
        
        PID:1228
  - - C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp613B.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:980
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabDD47.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar5FF0.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp613B.tmp.bat

Filesize
157B

MD5
96c3dd55c8a98aaa1027350d57c98259

SHA1
fa55b3bf5cb89bc3d50c90b7f89e49f9de4f74dd

SHA256
5222b761f2f721fc9211563cca5433adb01e5526f8181ab06bd46feadb8e647c

SHA512
bdd1a5d2686541b3ca96a23a8557129d1b7252c3dff15ecc4a61752c9e6292bacdc065dededf2589206a7c737223abde6212c7a04410521a8f2a9fef403662a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC41A.tmp.bat

Filesize
152B

MD5
683979f1c8496e18e041b5b1b9122f8d

SHA1
d01781d6420272d24b41245e27472e99af6031a4

SHA256
207093a49e520900e05aeadd8e1dfb9d0cb0776b5175fcd49515a0d7ca130679

SHA512
4ca11a7e403cf5d45debe57dccd35e72ef065f7e6c846deffec50bb72aa87d2c3f3a2393607f7982e2329dfbf90a319f8501e4868e9110dd5bd58958f125c3e7

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

Filesize
63KB

MD5
8b5d09ffbbfc800578025d9aff31ac68

SHA1
cdeea0a7ffb18502d7cae832a13f6294285904ae

SHA256
84912d357a09d920ded8c02f0236676f301bd26722ba6ad92165418c007cda89

SHA512
a22e73029e4387b70c4242a2beef317b96a32996d523a76580914cd5582b3580f0de9d691aa1e688f74042463f7f8c10c2cd5ce3a3d2b178656c0fd84106a589

Download Submit
memory/1948-0-0x000007FEF59B3000-0x000007FEF59B4000-memory.dmp

Filesize
4KB

Download
memory/1948-1-0x0000000000B90000-0x0000000000BA6000-memory.dmp

Filesize
88KB

Download
memory/1948-2-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/1948-4-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/1948-13-0x000007FEF59B0000-0x000007FEF639C000-memory.dmp

Filesize
9.9MB

Download
memory/2732-17-0x0000000000A30000-0x0000000000A46000-memory.dmp

Filesize
88KB

Download
memory/2732-34-0x000000001BB90000-0x000000001BC42000-memory.dmp

Filesize
712KB

Download