asyncrat | 7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357

General

Target
7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
Size 45KB
Sample260601-va4jcact2m
SHA256 7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357
MD5 a91b7b03fff13598094b46be6c03ab70
SHA1 3c5e9ee63e969a90e6e9e1566356639ebe62d3ca
SHA512 6458cca2bc57b6ecaa5f116b468d7f6431e20579117511ab61369aeb8ca4d362d450f1a6f106f4afe552591f334d9dc664c865e9e7f311d58004d177286d7ad0
SSDEEP 768:BupM9Tx5PWZZWUvfyRmo2qg40b3NEAteiZPISzjbZgO3i57gwMjO+FgDBDZjx:BupM9TxtOO273ehiWS3b2OS5KUdjx
TLSH
T1FC231A003BE8812BF2BE5F78ADF25245867AF1632603D54A1CC451DB5623FC69643AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

phe18.vip:443
phe18.vip:80
www.phe18.vip:443
www.phe18.vip:80
clop.phe18.vip:443
clop.phe18.vip:80
shamoon.phe18.vip:443
shamoon.phe18.vip:80
iloveyou.phe18.vip:443
iloveyou.phe18.vip:80
locky.phe18.vip:443
locky.phe18.vip:80

Mutex

8KfK2nVfR9SK

Attributes

delay
0
install
true
install_file
v2jk.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000300000002a213-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2964	v2jk.exe
3168	v2jk.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	v2jk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v2jk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4864	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
4828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
Token: SeDebugPrivilege	2964	v2jk.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 2920	4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe	83
PID 4736 wrote to memory of 4280	4736	7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe	85
PID 2920 wrote to memory of 4828	2920	cmd.exe	87
PID 4280 wrote to memory of 4864	4280	cmd.exe	88
PID 4280 wrote to memory of 3168	4280	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe
"C:\Users\Admin\AppData\Local\Temp\7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "v2jk" /tr '"C:\Users\Admin\AppData\Roaming\v2jk.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2920
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "v2jk" /tr '"C:\Users\Admin\AppData\Roaming\v2jk.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4828
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp58C9.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4280
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4864
- - C:\Users\Admin\AppData\Roaming\v2jk.exe
    "C:\Users\Admin\AppData\Roaming\v2jk.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3168

C:\Users\Admin\AppData\Roaming\v2jk.exe
"C:\Users\Admin\AppData\Roaming\v2jk.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2964

Network

MITRE ATT&CK Enterprise v16

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp58C9.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp58C9.tmp.bat
Size 148B
SHA256 79f7265cf9113dbc9d0f3d4a2929014462c10b7c0905b9c4e64fb45d24ad0ac9
MD5 dcda680089815d6c28cb30036c1d199e
SHA1 5ed28c684e2b8d9b688c72c425d00ee889edd173
SHA512 d9141b4bc495deed34ac27b3b3d4667f110c3b3cef4e14eb037c7bcff6ce70d4bfcf2bd952bf2800cfefb8e84539a74885b7694d3e7f0ceb02fd990cdd9f76d4
TLSH
T117C08C4252CAAA0E3805585302FA998C91B2685A3F40BB008344880E128048AE099245
MD5 SHA1 SHA512 TLSH

Submit Download

v2jk.exe

Path C:\Users\Admin\AppData\Roaming\v2jk.exe
Size 45KB
SHA256 7ba468c4b44c24fe6a24c2fb8b6eacf0b66f6b56eb25b65342a12b8dc627b357
MD5 a91b7b03fff13598094b46be6c03ab70
SHA1 3c5e9ee63e969a90e6e9e1566356639ebe62d3ca
SHA512 6458cca2bc57b6ecaa5f116b468d7f6431e20579117511ab61369aeb8ca4d362d450f1a6f106f4afe552591f334d9dc664c865e9e7f311d58004d177286d7ad0
SSDEEP 768:BupM9Tx5PWZZWUvfyRmo2qg40b3NEAteiZPISzjbZgO3i57gwMjO+FgDBDZjx:BupM9TxtOO273ehiWS3b2OS5KUdjx
TLSH
T1FC231A003BE8812BF2BE5F78ADF25245867AF1632603D54A1CC451DB5623FC69643AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4736-0-0x0000000000B90000-0x0000000000BA2000-memory.dmp

Download

memory/4736-1-0x00000000056B0000-0x00000000056C0000-memory.dmp

Download

memory/4736-2-0x0000000005610000-0x00000000056AC000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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