asyncrat | b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8

General

Target

JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe
Size

72KB
MD5

c0741c5f09e005636c81946e1c821474
SHA1

c81bd945e8870bb33e38182289bd9294c3c8ba7f
SHA256

b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8
SHA512

9abf032b19264800ee51450dd49d1c86764371d4020cad75356149c54ef596b52f877097be1ab9c3e195fba2d52fda255d7286ef857904a65b47f6b4b4732c5c
SSDEEP

768:QoDRMt9b8i9K4GR2VNuIx2FAhQ7CbEjbegr3iaxgvUroz0ClZN2tYcFmVc6K:QoDRMth9U2hfEbhrSjUroz5rNKmVcl

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

milla.publicvm.com:6606

milla.publicvm.com:7707

milla.publicvm.com:8808

Mutex

hzizmtfuyizxxugkf

Attributes

delay
40
install
true
install_file
cclaner.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
behavioral1/files/0x000c000000012262-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2940	cclaner.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
2008	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
2688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe
2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe
2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe
Token: SeDebugPrivilege	2940	cclaner.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2868	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	30
PID 2492 wrote to memory of 2868	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	30
PID 2492 wrote to memory of 2868	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	30
PID 2492 wrote to memory of 2708	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	32
PID 2492 wrote to memory of 2708	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	32
PID 2492 wrote to memory of 2708	2492	JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe	32
PID 2708 wrote to memory of 2008	2708	cmd.exe	34
PID 2708 wrote to memory of 2008	2708	cmd.exe	34
PID 2708 wrote to memory of 2008	2708	cmd.exe	34
PID 2868 wrote to memory of 2688	2868	cmd.exe	35
PID 2868 wrote to memory of 2688	2868	cmd.exe	35
PID 2868 wrote to memory of 2688	2868	cmd.exe	35
PID 2708 wrote to memory of 2940	2708	cmd.exe	36
PID 2708 wrote to memory of 2940	2708	cmd.exe	36
PID 2708 wrote to memory of 2940	2708	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\JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8 /tr '"C:\Users\Admin\AppData\Roaming\cclaner.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8 /tr '"C:\Users\Admin\AppData\Roaming\cclaner.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2688
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD6A0.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2008
- - C:\Users\Admin\AppData\Roaming\cclaner.exe
    "C:\Users\Admin\AppData\Roaming\cclaner.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2940

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD6A0.tmp.bat

Filesize
151B

MD5
d76d84f3152f1b0d7c59fd757f06605f

SHA1
2076f1336941815b73640769bcb34013449e74e5

SHA256
2cf881bf0050c17a8527b6bd8277018b1fac778fafd5f00aa54caa169d3775fd

SHA512
bab3128079a0c9a83937ed0d0c7c6f4eac22c15d8713b5e1df8df9305605bdb72733f8c2072c8c889783d2c3413a10bc5e666b12225865ed7c8694f4791871c5

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

Filesize
72KB

MD5
c0741c5f09e005636c81946e1c821474

SHA1
c81bd945e8870bb33e38182289bd9294c3c8ba7f

SHA256
b9bdfaa517d5e41d4d2916336229fc6b273d81d800c5faa70c5aadb2b50c8fb8

SHA512
9abf032b19264800ee51450dd49d1c86764371d4020cad75356149c54ef596b52f877097be1ab9c3e195fba2d52fda255d7286ef857904a65b47f6b4b4732c5c

Download Submit
memory/2492-0-0x000007FEF6503000-0x000007FEF6504000-memory.dmp

Filesize
4KB

Download
memory/2492-1-0x0000000001320000-0x0000000001332000-memory.dmp

Filesize
72KB

Download
memory/2492-2-0x000007FEF6503000-0x000007FEF6504000-memory.dmp

Filesize
4KB

Download
memory/2492-3-0x000007FEF6500000-0x000007FEF6EEC000-memory.dmp

Filesize
9.9MB

Download
memory/2492-13-0x000007FEF6500000-0x000007FEF6EEC000-memory.dmp

Filesize
9.9MB

Download
memory/2940-17-0x00000000008F0000-0x0000000000902000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads