asyncrat | adcac50d0023e4f7103f3870fe9fc1ef9873904fcb1d7765b4ac589c0d12d47f

General

Target

97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe
Size

580KB
MD5

97764f60a073dbc9137ef79bfe1c63b8
SHA1

ebd3ca8aa2571322f413340bd8d36b8df28a5dc8
SHA256

adcac50d0023e4f7103f3870fe9fc1ef9873904fcb1d7765b4ac589c0d12d47f
SHA512

53b29b427721733b6fd066a98e7f3abeb84f75d56765aa5834fc00f0056118604cee3f4567e2e9bcdcd5c5cd83d6b93d339b452ead3889942396912800494cfe
SSDEEP

12288:iibJ5Dd98p9c2W7X6gl8ferA/1LxPyjvekK+Z187Cklxjl1ncYv2tasGHW:z7Xn7X6gl3ra1xWvMIojJutasoW

Score

10^/10

asyncrat xx discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

XX

C2

icando.ug:6970

icacxndo.ac.ug:6970

Mutex

6SI8OkPnkxzcasd

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3776 set thread context of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
3952	schtasks.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3776 wrote to memory of 3952	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	94
PID 3776 wrote to memory of 3952	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	94
PID 3776 wrote to memory of 3952	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	94
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96
PID 3776 wrote to memory of 448	3776	97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3776
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RSIdQVc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3952
- C:\Users\Admin\AppData\Local\Temp\97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:448

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

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\97764f60a073dbc9137ef79bfe1c63b8_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5F6.tmp

Filesize
1KB

MD5
d1dddd6e478591f32b52489f35d39f51

SHA1
bb2878c036c0f1a609732cc67ffb3a48d23de2dc

SHA256
07cca8c334fbbcb2a11e8928acc6a10b194ad85a6995a3bfd14e92275babc24c

SHA512
cc5b31762cd6435afb48e52b7581eeb7ba34654d37184821dbd1c8e678028804a710abde64131aa379649e2f3f974d6339aa44947a67f3c77d8f6da91187ef1a

Download Submit
memory/448-20-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/448-19-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/448-17-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/448-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3776-4-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/3776-7-0x0000000005AF0000-0x0000000005AF8000-memory.dmp

Filesize
32KB

Download
memory/3776-8-0x00000000752FE000-0x00000000752FF000-memory.dmp

Filesize
4KB

Download
memory/3776-9-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/3776-10-0x0000000006C50000-0x0000000006CC2000-memory.dmp

Filesize
456KB

Download
memory/3776-6-0x00000000085F0000-0x000000000868C000-memory.dmp

Filesize
624KB

Download
memory/3776-5-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/3776-0-0x00000000752FE000-0x00000000752FF000-memory.dmp

Filesize
4KB

Download
memory/3776-3-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/3776-18-0x00000000752F0000-0x0000000075AA0000-memory.dmp

Filesize
7.7MB

Download
memory/3776-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/3776-1-0x0000000000CF0000-0x0000000000D88000-memory.dmp

Filesize
608KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads