asyncrat | 5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417

General

Target

JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
Size

72KB
MD5

bbb8e40c8828fb4649ab6414cea472f8
SHA1

ee633e317ca9a66a97550aa6e5521803a27693e6
SHA256

5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417
SHA512

c9f9c41ba8c99cb3e913e6cffd63be0f5dfc81e08e056d0ce2083e16b344c0990b9455c21c07e7bf34ba46e9514d66d12966c02d2292b5e5e26aef90f2aed06c
SSDEEP

1536:QoD1Mth9k0XBq+adebTry5UNEN5rNKmVcl:QoD1Mthy0MXebTdk5JK8Y

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

bdeyjxzfhfrvuzdyrin

Attributes

delay
3
install
true
install_file
firefoxa.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/0x000c00000001202c-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2948	firefoxa.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
3064	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
800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
Token: SeDebugPrivilege	2948	firefoxa.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2576	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	30
PID 2396 wrote to memory of 2576	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	30
PID 2396 wrote to memory of 2576	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	30
PID 2396 wrote to memory of 2372	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	32
PID 2396 wrote to memory of 2372	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	32
PID 2396 wrote to memory of 2372	2396	JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe	32
PID 2372 wrote to memory of 3064	2372	cmd.exe	34
PID 2372 wrote to memory of 3064	2372	cmd.exe	34
PID 2372 wrote to memory of 3064	2372	cmd.exe	34
PID 2576 wrote to memory of 800	2576	cmd.exe	35
PID 2576 wrote to memory of 800	2576	cmd.exe	35
PID 2576 wrote to memory of 800	2576	cmd.exe	35
PID 2372 wrote to memory of 2948	2372	cmd.exe	37
PID 2372 wrote to memory of 2948	2372	cmd.exe	37
PID 2372 wrote to memory of 2948	2372	cmd.exe	37

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_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417 /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417 /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:800
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpC7B2.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3064
- - C:\Users\Admin\AppData\Roaming\firefoxa.exe
    "C:\Users\Admin\AppData\Roaming\firefoxa.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2948

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\tmpC7B2.tmp.bat

Filesize
152B

MD5
df5b26b35d8da9c08974253d33932f07

SHA1
862a4b57d25a2f54b2546b44e75f15ba14dfbad8

SHA256
8ea64427908da04ad14afaef2adf1a43bc03c8ecf554880eb689ed3508b0512e

SHA512
a95f834d10b8821fc7545ea76304f63cc20f846f0f2f6e6beaf0702710482d96eb9306b828e4b28602c53931c48f53cf7cadfa42053706e684ee374d354a8386

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

Filesize
72KB

MD5
bbb8e40c8828fb4649ab6414cea472f8

SHA1
ee633e317ca9a66a97550aa6e5521803a27693e6

SHA256
5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417

SHA512
c9f9c41ba8c99cb3e913e6cffd63be0f5dfc81e08e056d0ce2083e16b344c0990b9455c21c07e7bf34ba46e9514d66d12966c02d2292b5e5e26aef90f2aed06c

Download Submit
memory/2396-0-0x000007FEF5E73000-0x000007FEF5E74000-memory.dmp

Filesize
4KB

Download
memory/2396-1-0x0000000000C40000-0x0000000000C52000-memory.dmp

Filesize
72KB

Download
memory/2396-2-0x000007FEF5E70000-0x000007FEF685C000-memory.dmp

Filesize
9.9MB

Download
memory/2396-11-0x000007FEF5E70000-0x000007FEF685C000-memory.dmp

Filesize
9.9MB

Download
memory/2948-16-0x00000000009B0000-0x00000000009C2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads