asyncrat | dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461

General

Target

dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe
Size

503KB
MD5

b41bf2658e924e0ede6906f35759e28d
SHA1

44a3666f49f49bda109a9c6fc0969698668d3789
SHA256

dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461
SHA512

258828419fbac1282f734b1d29e47c0ff6a38a7c164cb3b579dbc4c43deb79e87503c1bedd99e04ce7fdfe04bdff92ba8f75aa3b95ce505489cc08eabbbef917
SSDEEP

12288:KYRxA4Y5lyA/BxSPC8a1iSN8PppYLJRbPoiNMirHoQtqgjfmHcP9:FRi1iSN0YLHwHgHhdjKc1

Score

10^/10

asyncrat coke discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

COKE

C2

quin.ydns.eu:1962

quin.ydns.eu:1940

185.38.142.240:1962

185.38.142.240:1940

Mutex

dLOEY8XRq1oB

Attributes

delay
3
install
false
install_file
windowsBook.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1292 set thread context of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95

System Location Discovery: System Language Discovery 1 TTPs 2 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	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	768	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95
PID 1292 wrote to memory of 768	1292	dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe	95

C:\Users\Admin\AppData\Local\Temp\dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe
"C:\Users\Admin\AppData\Local\Temp\dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Users\Admin\AppData\Local\Temp\dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe
  "C:\Users\Admin\AppData\Local\Temp\dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dda88b2f3e4fc0dd679df66662d77aaedaeed19d542fab5171f54e0b01869461.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/768-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/768-19-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/768-18-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/768-17-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/768-16-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/768-14-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1292-4-0x0000000005700000-0x000000000570A000-memory.dmp

Filesize
40KB

Download
memory/1292-8-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1292-9-0x0000000006C40000-0x0000000006C96000-memory.dmp

Filesize
344KB

Download
memory/1292-10-0x000000000A610000-0x000000000A6AC000-memory.dmp

Filesize
624KB

Download
memory/1292-7-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1292-6-0x0000000005AF0000-0x0000000005B0A000-memory.dmp

Filesize
104KB

Download
memory/1292-5-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1292-15-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1292-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1292-3-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/1292-2-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/1292-1-0x0000000000C70000-0x0000000000CF4000-memory.dmp

Filesize
528KB

Download

Analysis

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