asyncrat | e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832

General

Target

e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Size

534KB
MD5

9533800ff0c1ef9979f705d23d0a625a
SHA1

818521b032199079f6757cad27c3f5f073a131f6
SHA256

e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832
SHA512

7f4866986310f3b20e5fdcd46f4cb61fb2d8d6c840457b77ffd1378a84901345b2e6a6b4864836eafd5b8f9764871c255feb88a0adf5b2cfee06962f403128ae
SSDEEP

12288:ZBBJwlsFlt4krssP9go6toOmpb0l65xraLr:5mibd1gbwpbW65x

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 3964 set thread context of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89

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	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Token: SeDebugPrivilege	1460	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89
PID 3964 wrote to memory of 1460	3964	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	89

C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
"C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3964
- C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
  "C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1460

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1460-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1460-21-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1460-20-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1460-19-0x00000000061F0000-0x0000000006256000-memory.dmp

Filesize
408KB

Download
memory/1460-16-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1460-14-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3964-4-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3964-8-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/3964-9-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3964-10-0x00000000054A0000-0x00000000054F4000-memory.dmp

Filesize
336KB

Download
memory/3964-7-0x0000000005C10000-0x0000000005C2E000-memory.dmp

Filesize
120KB

Download
memory/3964-6-0x0000000005D50000-0x0000000005DEC000-memory.dmp

Filesize
624KB

Download
memory/3964-5-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

Filesize
40KB

Download
memory/3964-15-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3964-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/3964-3-0x0000000005A20000-0x0000000005AB2000-memory.dmp

Filesize
584KB

Download
memory/3964-2-0x0000000006130000-0x00000000066D4000-memory.dmp

Filesize
5.6MB

Download
memory/3964-1-0x0000000000FA0000-0x000000000102C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing