asyncrat | fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f

General

Target

JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe
Size

72KB
MD5

1be11ef383e4754e590419da2ef3d3c7
SHA1

429b75c6806eab425318a05365f95f545a846397
SHA256

fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f
SHA512

be836d96321930f2bffea0f7e3d7d2f692c8716838a6edb3b523dee006da4a766bb9df25dd9f58d8af54701b0ec2243cb8c2ea89bbacb66fedcc4caca7eae529
SSDEEP

1536:EoD1Mth9MRwaeb4hSFqmOoy8grJKmVcl:EoD1MthMwaeb4G4ocNK8Y

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

sdjacffkienmtfsm

Attributes

delay
9
install
true
install_file
firfafox.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/0x0004000000004ed7-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2832	firfafox.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
2724	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
2704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe
2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe
2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe
Token: SeDebugPrivilege	2832	firfafox.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 1280	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	31
PID 2092 wrote to memory of 1280	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	31
PID 2092 wrote to memory of 1280	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	31
PID 2092 wrote to memory of 2876	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	33
PID 2092 wrote to memory of 2876	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	33
PID 2092 wrote to memory of 2876	2092	JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe	33
PID 1280 wrote to memory of 2704	1280	cmd.exe	35
PID 1280 wrote to memory of 2704	1280	cmd.exe	35
PID 1280 wrote to memory of 2704	1280	cmd.exe	35
PID 2876 wrote to memory of 2724	2876	cmd.exe	36
PID 2876 wrote to memory of 2724	2876	cmd.exe	36
PID 2876 wrote to memory of 2724	2876	cmd.exe	36
PID 2876 wrote to memory of 2832	2876	cmd.exe	37
PID 2876 wrote to memory of 2832	2876	cmd.exe	37
PID 2876 wrote to memory of 2832	2876	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_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f /tr '"C:\Users\Admin\AppData\Roaming\firfafox.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f /tr '"C:\Users\Admin\AppData\Roaming\firfafox.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2704
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE9F2.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2724
- - C:\Users\Admin\AppData\Roaming\firfafox.exe
    "C:\Users\Admin\AppData\Roaming\firfafox.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2832

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\tmpE9F2.tmp.bat

Filesize
152B

MD5
f24a39e48d7d1942f718c622dfdb1ac7

SHA1
0966ba4973d37dc1fac114c1a22a6bfbee50374f

SHA256
7860b6e0621ed46880a3bd07234385e67b2f2c7873b882c9166de2d4c858ebca

SHA512
6cebe2735ec8f9e343f655150d86668fe0406ec55e93bc83986a894487773c3b5448bb4fef024ce57089a69a845ecb969f0875afa45c4df60463ec5cf00012d5

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

Filesize
72KB

MD5
1be11ef383e4754e590419da2ef3d3c7

SHA1
429b75c6806eab425318a05365f95f545a846397

SHA256
fe3fdea48cbe7fe295466792e770838e7b5527d096de3cc1b55ddf21a29c590f

SHA512
be836d96321930f2bffea0f7e3d7d2f692c8716838a6edb3b523dee006da4a766bb9df25dd9f58d8af54701b0ec2243cb8c2ea89bbacb66fedcc4caca7eae529

Download Submit
memory/2092-0-0x000007FEF5573000-0x000007FEF5574000-memory.dmp

Filesize
4KB

Download
memory/2092-1-0x0000000000F50000-0x0000000000F62000-memory.dmp

Filesize
72KB

Download
memory/2092-2-0x000007FEF5573000-0x000007FEF5574000-memory.dmp

Filesize
4KB

Download
memory/2092-3-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

Filesize
9.9MB

Download
memory/2092-12-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

Filesize
9.9MB

Download
memory/2832-17-0x0000000000070000-0x0000000000082000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads