asyncrat | 36af16f1951a6edc1cbcd5a15c4bc1a68b2ce829a632e5ff2f37cf2167eac659

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09-08-2024 11:30

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General

Target

De4dot [Modded ArmDot]/de4dot.exe
Size

864KB
MD5

5adaa98a0b8e6411899f38807992afc6
SHA1

286990f8674e0369a9c27f4ffc346383c5c4b03e
SHA256

956a589c4da96ec8386890e9500918dfbfbab1caaae0adc0b9366fa25dc46e52
SHA512

700be06def67aa38426cef84d1394f2eb6b30a198857f48df0d6449e85251ee8af764f2574c66e769980275613738056c68c4dfbd0bd74dc255e5dd90254fff6
SSDEEP

24576:H/1vb3S3HSpqUXw/bD/ZOGsoXio18NwV+Zg:JiHaIg/obVYg

Score

10^/10

asyncrat d4dot rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

D4Dot

154.61.75.91:4449

Attributes

delay
1
install
true
install_file
D4dot.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
behavioral23/memory/628-2-0x00000000001D0000-0x0000000000212000-memory.dmp	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2680	D4dot.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
2916	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
580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
628	de4dot.exe
628	de4dot.exe
628	de4dot.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	628	de4dot.exe
Token: SeDebugPrivilege	2680	D4dot.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 2748	628	de4dot.exe	30
PID 628 wrote to memory of 2748	628	de4dot.exe	30
PID 628 wrote to memory of 2748	628	de4dot.exe	30
PID 628 wrote to memory of 2764	628	de4dot.exe	31
PID 628 wrote to memory of 2764	628	de4dot.exe	31
PID 628 wrote to memory of 2764	628	de4dot.exe	31
PID 2764 wrote to memory of 2916	2764	cmd.exe	34
PID 2764 wrote to memory of 2916	2764	cmd.exe	34
PID 2764 wrote to memory of 2916	2764	cmd.exe	34
PID 2748 wrote to memory of 580	2748	cmd.exe	35
PID 2748 wrote to memory of 580	2748	cmd.exe	35
PID 2748 wrote to memory of 580	2748	cmd.exe	35
PID 2764 wrote to memory of 2680	2764	cmd.exe	36
PID 2764 wrote to memory of 2680	2764	cmd.exe	36
PID 2764 wrote to memory of 2680	2764	cmd.exe	36

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\De4dot [Modded ArmDot]\de4dot.exe
"C:\Users\Admin\AppData\Local\Temp\De4dot [Modded ArmDot]\de4dot.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:628
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "D4dot" /tr '"C:\Users\Admin\AppData\Roaming\D4dot.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "D4dot" /tr '"C:\Users\Admin\AppData\Roaming\D4dot.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:580
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD0C7.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2916
- - C:\Users\Admin\AppData\Roaming\D4dot.exe
    "C:\Users\Admin\AppData\Roaming\D4dot.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2680

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\tmpD0C7.tmp.bat

Filesize
149B

MD5
87e791dad54ad03c671f534d23c29b26

SHA1
22df7936191ce959eebd9819532d76622d0f3954

SHA256
b40886719be23bc9251cf12edcf3edd4d855039db9e43c405a840b4594b23e63

SHA512
fa783d643e49aa8ab8e9e4432cc5679eb611dbb4dba44efd25dd6d664f43fec96ea385122d9c0165440f83b36a4b61ea6543d0ff371b5963d69a67f023654e2b

Download Submit
C:\Users\Admin\AppData\Roaming\D4dot.exe

Filesize
864KB

MD5
5adaa98a0b8e6411899f38807992afc6

SHA1
286990f8674e0369a9c27f4ffc346383c5c4b03e

SHA256
956a589c4da96ec8386890e9500918dfbfbab1caaae0adc0b9366fa25dc46e52

SHA512
700be06def67aa38426cef84d1394f2eb6b30a198857f48df0d6449e85251ee8af764f2574c66e769980275613738056c68c4dfbd0bd74dc255e5dd90254fff6

Download Submit
memory/628-0-0x000007FEF6473000-0x000007FEF6474000-memory.dmp

Filesize
4KB

Download
memory/628-1-0x0000000000CB0000-0x0000000000D8E000-memory.dmp

Filesize
888KB

Download
memory/628-2-0x00000000001D0000-0x0000000000212000-memory.dmp

Filesize
264KB

Download
memory/628-3-0x000007FEF6470000-0x000007FEF6E5C000-memory.dmp

Filesize
9.9MB

Download
memory/628-11-0x000007FEF6470000-0x000007FEF6E5C000-memory.dmp

Filesize
9.9MB

Download
memory/628-14-0x000007FEF6470000-0x000007FEF6E5C000-memory.dmp

Filesize
9.9MB

Download
memory/2680-18-0x0000000000A50000-0x0000000000B2E000-memory.dmp

Filesize
888KB

Download