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

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe

Executes dropped EXE 1 IoCs

pid	Process
528	Chrome.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
2704	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
1320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
Token: SeDebugPrivilege	528	Chrome.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 3524	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	83
PID 3764 wrote to memory of 3524	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	83
PID 3764 wrote to memory of 3524	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	83
PID 3764 wrote to memory of 544	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	85
PID 3764 wrote to memory of 544	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	85
PID 3764 wrote to memory of 544	3764	01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe	85
PID 3524 wrote to memory of 1320	3524	cmd.exe	87
PID 3524 wrote to memory of 1320	3524	cmd.exe	87
PID 3524 wrote to memory of 1320	3524	cmd.exe	87
PID 544 wrote to memory of 2704	544	cmd.exe	88
PID 544 wrote to memory of 2704	544	cmd.exe	88
PID 544 wrote to memory of 2704	544	cmd.exe	88
PID 544 wrote to memory of 528	544	cmd.exe	91
PID 544 wrote to memory of 528	544	cmd.exe	91
PID 544 wrote to memory of 528	544	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe
"C:\Users\Admin\AppData\Local\Temp\01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3764
- 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:3524
- - 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:1320
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC9A9.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2704
- - C:\Users\Admin\AppData\Roaming\Chrome.exe
    "C:\Users\Admin\AppData\Roaming\Chrome.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:528

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC9A9.tmp.bat

Filesize
150B

MD5
7e103ea47d647ea5240424b174c7b674

SHA1
738a4df038953b0c454804fbc40fe1218ea592cc

SHA256
88bbdb72f54558c9a0adb7fc42f49da2311f2e6a45a904aa38d1ea90be07b4a5

SHA512
9bda2a410ef7fccd73c5453314b72c9f9049efeb68b1eb65687b0fca002d9f1fc74348331226c1001f1d89c34a11098581c798bbebd5987dff7ff796e84e08e4

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

Filesize
6.8MB

MD5
b2b458a4d32353ea767fd85090da3cad

SHA1
7cafde34ad660df06370e8b8668fe28545d6dbf1

SHA256
01b7eea92bb27df73a6972f00927ba3a5989771f90052297f4027fc33e804ffd

SHA512
a1fb74f67bf763d1e81de1d17702ee3d967ed00288f0f68abf842346bb8dcb4e2c64b9353c6c612e3c9878348619506fbf217670d27cbe63526a44041264fe11

Download Submit
memory/528-14-0x0000000074490000-0x0000000074C40000-memory.dmp

Filesize
7.7MB

Download
memory/528-15-0x0000000074490000-0x0000000074C40000-memory.dmp

Filesize
7.7MB

Download
memory/528-16-0x0000000074490000-0x0000000074C40000-memory.dmp

Filesize
7.7MB

Download
memory/528-17-0x0000000074490000-0x0000000074C40000-memory.dmp

Filesize
7.7MB

Download
memory/3764-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/3764-1-0x00000000001A0000-0x000000000086C000-memory.dmp

Filesize
6.8MB

Download
memory/3764-2-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/3764-3-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3764-4-0x00000000054C0000-0x000000000555C000-memory.dmp

Filesize
624KB

Download
memory/3764-9-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads