asyncrat | 01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd

General

Target

01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
Size

6.8MB
MD5

b2b458a4d32353ea767fd85090da3cad
SHA1

7cafde34ad660df06370e8b8668fe28545d6dbf1
SHA256

01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd
SHA512

a1fb74f67bf763d1e81de1d17702ee3d967ed00288f0f68abf842346bb8dcb4e2c64b9353c6c612e3c9878348619506fbf217670d27cbe63526a44041264fe11
SSDEEP

196608:qbce1Juq1YCnUAP6fVJEsspI2jzuTRzzcc2YwForrrrNrrrrrprrrrXrrrrrHrrE:qAou0Y7ASfV6qfwt

Score

10^/10

asyncrat mailru rat

Malware Config

Extracted

Family

asyncrat

Version

ITSOBR

Botnet

MailRU

C2

52cf04efee6d.sn.mynetname.net:2024

Mutex

olErDv8aDk6J

Attributes

delay
30
install
true
install_file
Chrome.exe
install_folder
%AppData%

aes.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1380	Chrome.exe

Loads dropped DLL 1 IoCs

pid	Process
2828	cmd.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
484	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
320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
Token: SeDebugPrivilege	1380	Chrome.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2620	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	31
PID 2820 wrote to memory of 2620	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	31
PID 2820 wrote to memory of 2620	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	31
PID 2820 wrote to memory of 2620	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	31
PID 2820 wrote to memory of 2828	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	33
PID 2820 wrote to memory of 2828	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	33
PID 2820 wrote to memory of 2828	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	33
PID 2820 wrote to memory of 2828	2820	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	33
PID 2620 wrote to memory of 320	2620	cmd.exe	35
PID 2620 wrote to memory of 320	2620	cmd.exe	35
PID 2620 wrote to memory of 320	2620	cmd.exe	35
PID 2620 wrote to memory of 320	2620	cmd.exe	35
PID 2828 wrote to memory of 484	2828	cmd.exe	36
PID 2828 wrote to memory of 484	2828	cmd.exe	36
PID 2828 wrote to memory of 484	2828	cmd.exe	36
PID 2828 wrote to memory of 484	2828	cmd.exe	36
PID 2828 wrote to memory of 1380	2828	cmd.exe	37
PID 2828 wrote to memory of 1380	2828	cmd.exe	37
PID 2828 wrote to memory of 1380	2828	cmd.exe	37
PID 2828 wrote to memory of 1380	2828	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
"C:\Users\Admin\AppData\Local\Temp\01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Chrome" /tr '"C:\Users\Admin\AppData\Roaming\Chrome.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Chrome" /tr '"C:\Users\Admin\AppData\Roaming\Chrome.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:320
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE58E.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:484
- - C:\Users\Admin\AppData\Roaming\Chrome.exe
    "C:\Users\Admin\AppData\Roaming\Chrome.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:1380

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE58E.tmp.bat

Filesize
150B

MD5
927f6ada5a09948a5d7544a5683295f3

SHA1
0c05906dbcdb1d3a73d2ac5b33dfbaba1f32e49a

SHA256
dd86b485af62c048733213d3e5f0471ba3ab9f7ac9f04f1e932fdfc7e7cc0993

SHA512
72b9d6189a9d95c9cba402e9682783cceeb6c4aa5f2ee97bdc9fb52002ae0afc18c9127986d3c4521fbc8aa8b3e15e87dba3e36b75274a2bbe6fe3aa43240a10

Download Submit
\Users\Admin\AppData\Roaming\Chrome.exe

Filesize
6.8MB

MD5
b2b458a4d32353ea767fd85090da3cad

SHA1
7cafde34ad660df06370e8b8668fe28545d6dbf1

SHA256
01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd

SHA512
a1fb74f67bf763d1e81de1d17702ee3d967ed00288f0f68abf842346bb8dcb4e2c64b9353c6c612e3c9878348619506fbf217670d27cbe63526a44041264fe11

Download Submit
memory/1380-17-0x0000000000D60000-0x000000000142C000-memory.dmp

Filesize
6.8MB

Download
memory/2820-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2820-1-0x00000000001A0000-0x000000000086C000-memory.dmp

Filesize
6.8MB

Download
memory/2820-2-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2820-3-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2820-12-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads