asyncrat | 9ab26f70c71a11a7182abf5439b217c15c64163226626e4d823a239194c1f97b

General

Target

raped.exe
Size

48KB
MD5

d404de59b492053bb4c7b214a56b2b09
SHA1

0107bea371f1075c60a1a366211bbb3f8d5aa224
SHA256

9ab26f70c71a11a7182abf5439b217c15c64163226626e4d823a239194c1f97b
SHA512

310dfb551d529d98305cb559c9135c36b647b7b8af0807107b870f4a12e8cfb6d918eb388c4a92503cbea6c40b4199bbb04a7926b60b7cbe28689192e16d1722
SSDEEP

768:MukzVT0kLd3WULgPdVmo2qDiOfrWHBaeqPI6FRCCwc00bG/O8NpLWOZigj+8Xq7e:MukzVT0Mq12FOXeT6R7w+bGVn0X8Xq7e

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
fucked.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/392-133-0x0000000000F70000-0x0000000000F82000-memory.dmp	asyncrat
behavioral2/files/0x000400000001d9fc-142.dat	asyncrat
behavioral2/files/0x000400000001d9fc-143.dat	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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	raped.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	fucked.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3088	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4744	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe
392	raped.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	raped.exe
Token: SeDebugPrivilege	2496	fucked.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 1104	392	raped.exe	88
PID 392 wrote to memory of 1104	392	raped.exe	88
PID 392 wrote to memory of 1104	392	raped.exe	88
PID 392 wrote to memory of 3924	392	raped.exe	92
PID 392 wrote to memory of 3924	392	raped.exe	92
PID 392 wrote to memory of 3924	392	raped.exe	92
PID 3924 wrote to memory of 4744	3924	cmd.exe	93
PID 3924 wrote to memory of 4744	3924	cmd.exe	93
PID 3924 wrote to memory of 4744	3924	cmd.exe	93
PID 1104 wrote to memory of 3088	1104	cmd.exe	94
PID 1104 wrote to memory of 3088	1104	cmd.exe	94
PID 1104 wrote to memory of 3088	1104	cmd.exe	94
PID 3924 wrote to memory of 2496	3924	cmd.exe	95
PID 3924 wrote to memory of 2496	3924	cmd.exe	95
PID 3924 wrote to memory of 2496	3924	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\raped.exe
"C:\Users\Admin\AppData\Local\Temp\raped.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fucked" /tr '"C:\Users\Admin\AppData\Roaming\fucked.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1104
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "fucked" /tr '"C:\Users\Admin\AppData\Roaming\fucked.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:3088
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE331.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3924
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4744
- - C:\Users\Admin\AppData\Roaming\fucked.exe
    "C:\Users\Admin\AppData\Roaming\fucked.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE331.tmp.bat

Filesize
150B

MD5
b7ad0becfa234a6398b38ffdcda53d52

SHA1
fc8aa637b77258805f5c4cf633c7e12282b866f0

SHA256
a7bc0665412b0d4b1835e3a89f7cf40128c8f9f839451a8ce176bcc0f58fb5a4

SHA512
e298d7e9f6b76c72836c7bc92c85935fe2ebfb25d55e06a14f861e42b0ec2daa32d2cf490ea53a9821c9bbb474820e8acfb1fec1bc7f01994cad27a3b5727d00

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

Filesize
48KB

MD5
d404de59b492053bb4c7b214a56b2b09

SHA1
0107bea371f1075c60a1a366211bbb3f8d5aa224

SHA256
9ab26f70c71a11a7182abf5439b217c15c64163226626e4d823a239194c1f97b

SHA512
310dfb551d529d98305cb559c9135c36b647b7b8af0807107b870f4a12e8cfb6d918eb388c4a92503cbea6c40b4199bbb04a7926b60b7cbe28689192e16d1722

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

Filesize
48KB

MD5
d404de59b492053bb4c7b214a56b2b09

SHA1
0107bea371f1075c60a1a366211bbb3f8d5aa224

SHA256
9ab26f70c71a11a7182abf5439b217c15c64163226626e4d823a239194c1f97b

SHA512
310dfb551d529d98305cb559c9135c36b647b7b8af0807107b870f4a12e8cfb6d918eb388c4a92503cbea6c40b4199bbb04a7926b60b7cbe28689192e16d1722

Download Submit
memory/392-133-0x0000000000F70000-0x0000000000F82000-memory.dmp

Filesize
72KB

Download
memory/392-134-0x00000000058D0000-0x00000000058E0000-memory.dmp

Filesize
64KB

Download
memory/392-135-0x0000000005980000-0x0000000005A1C000-memory.dmp

Filesize
624KB

Download
memory/2496-144-0x0000000004B10000-0x0000000004B20000-memory.dmp

Filesize
64KB

Download
memory/2496-145-0x0000000004B10000-0x0000000004B20000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads