asyncrat | 9133d1e1840eba05fd58c6196597ac684b1a429cc7cef55d0c426609f58255c0

General

Target

e24708d6b2a36fa08513d08c801ded10N.exe
Size

979KB
MD5

e24708d6b2a36fa08513d08c801ded10
SHA1

bd79ca2abafb41a481def361ede0567ca923f630
SHA256

9133d1e1840eba05fd58c6196597ac684b1a429cc7cef55d0c426609f58255c0
SHA512

622ef04aa8e7f1e3c331293a853300f166b3c8bfc508ee0e49c25806761c3ddb1306752f68c9640aed25f9a77e1304ab1d19a5f25fcf9cdd8904be1c9d618699
SSDEEP

12288:aZcNmVoRehM8BrRpM2OkPtFqIoF1JP3rpMJJNRsVzKnUekzn5nf7DPWHP+alL0Wl:bXRehM2pOcqLj1M3DWKUe453PWv7jWk

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

seznam.zapto.org:6606

seznam.zapto.org:7707

seznam.zapto.org:8808

ronymahmoud.casacam.net:6606

ronymahmoud.casacam.net:7707

ronymahmoud.casacam.net:8808

Mutex

tpfypmaupoo

Attributes

delay
8
install
true
install_file
defander.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/memory/1140-5-0x0000000000610000-0x0000000000622000-memory.dmp	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2776	defander.exe

Loads dropped DLL 1 IoCs

pid	Process
2784	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
2132	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
2936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1140	e24708d6b2a36fa08513d08c801ded10N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1140	e24708d6b2a36fa08513d08c801ded10N.exe
Token: SeDebugPrivilege	2776	defander.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 2896	1140	e24708d6b2a36fa08513d08c801ded10N.exe	30
PID 1140 wrote to memory of 2896	1140	e24708d6b2a36fa08513d08c801ded10N.exe	30
PID 1140 wrote to memory of 2896	1140	e24708d6b2a36fa08513d08c801ded10N.exe	30
PID 1140 wrote to memory of 2896	1140	e24708d6b2a36fa08513d08c801ded10N.exe	30
PID 1140 wrote to memory of 2784	1140	e24708d6b2a36fa08513d08c801ded10N.exe	31
PID 1140 wrote to memory of 2784	1140	e24708d6b2a36fa08513d08c801ded10N.exe	31
PID 1140 wrote to memory of 2784	1140	e24708d6b2a36fa08513d08c801ded10N.exe	31
PID 1140 wrote to memory of 2784	1140	e24708d6b2a36fa08513d08c801ded10N.exe	31
PID 2784 wrote to memory of 2132	2784	cmd.exe	34
PID 2784 wrote to memory of 2132	2784	cmd.exe	34
PID 2784 wrote to memory of 2132	2784	cmd.exe	34
PID 2784 wrote to memory of 2132	2784	cmd.exe	34
PID 2896 wrote to memory of 2936	2896	cmd.exe	35
PID 2896 wrote to memory of 2936	2896	cmd.exe	35
PID 2896 wrote to memory of 2936	2896	cmd.exe	35
PID 2896 wrote to memory of 2936	2896	cmd.exe	35
PID 2784 wrote to memory of 2776	2784	cmd.exe	36
PID 2784 wrote to memory of 2776	2784	cmd.exe	36
PID 2784 wrote to memory of 2776	2784	cmd.exe	36
PID 2784 wrote to memory of 2776	2784	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\e24708d6b2a36fa08513d08c801ded10N.exe
"C:\Users\Admin\AppData\Local\Temp\e24708d6b2a36fa08513d08c801ded10N.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn e24708d6b2a36fa08513d08c801ded10N /tr '"C:\Users\Admin\AppData\Roaming\defander.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn e24708d6b2a36fa08513d08c801ded10N /tr '"C:\Users\Admin\AppData\Roaming\defander.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2936
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF2D.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2132
- - C:\Users\Admin\AppData\Roaming\defander.exe
    "C:\Users\Admin\AppData\Roaming\defander.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2776

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\Cab4655.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF2D.tmp.bat

Filesize
151B

MD5
32c79f641c376caf54cddd2758b4671c

SHA1
7bee4a1e0f4496146f36b50895644fe2055b2359

SHA256
c2326f00e88cdf26d25ae5cc23612d18cfdd7c4e380eabceb37f3eb9e41c52e8

SHA512
3b8c18b95178ab4993569c5a2a41690f2043c37455ff368aaadf804012f9f1c48da809abf903c82f1c27a1f3edba820407357a330f6fbd2c924c0bc3ba670978

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

Filesize
979KB

MD5
e24708d6b2a36fa08513d08c801ded10

SHA1
bd79ca2abafb41a481def361ede0567ca923f630

SHA256
9133d1e1840eba05fd58c6196597ac684b1a429cc7cef55d0c426609f58255c0

SHA512
622ef04aa8e7f1e3c331293a853300f166b3c8bfc508ee0e49c25806761c3ddb1306752f68c9640aed25f9a77e1304ab1d19a5f25fcf9cdd8904be1c9d618699

Download Submit
memory/1140-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/1140-1-0x0000000000940000-0x0000000000A3A000-memory.dmp

Filesize
1000KB

Download
memory/1140-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1140-3-0x00000000024F0000-0x0000000002584000-memory.dmp

Filesize
592KB

Download
memory/1140-4-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1140-5-0x0000000000610000-0x0000000000622000-memory.dmp

Filesize
72KB

Download
memory/1140-15-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-19-0x00000000012D0000-0x00000000013CA000-memory.dmp

Filesize
1000KB

Download
memory/2776-20-0x0000000004F80000-0x0000000005014000-memory.dmp

Filesize
592KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads