asyncrat | 6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9

General

Target
6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
Size 45KB
Sample260804-pwv67seq61
SHA256 6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9
MD5 576b419e36e5125076047e4f972515e4
SHA1 0d09c76acf146cb8d00e31509352ab2065537f18
SHA512 db1687dd8f4ebd6c28b255df0dc9851c4efe29164f1bf08b83db428c4549733880427fe562e0b55bee4c627106e2c5ba0940ac7bdd81d1865ff9eb58f77e8d42
SSDEEP 768:QulLJTEs+EgWUKJTGmo2q94DEbHBqj2OPI/pzjbDgX3iIOOsq8SlyVmCmdDUTfBH:QulLJTE9X2XyoK3/p3bcXSFOAS8oDgdN
TLSH
T149230A003BE8C13BF27E4F7899F26145867AF6633603D6891CC451975623FC6DA42AEE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

heovl.im:80
heovl.im:22
heovl.im:8080
heovl.im:8880
heovl.im:2052
heovl.im:2082
heovl.im:2086
heovl.im:2095
heovl.im:443
heovl.im:2053
heovl.im:2083
heovl.im:2087
heovl.im:2096
heovl.im:8443
www.heovl.im:80
www.heovl.im:22
www.heovl.im:8080
www.heovl.im:8880
www.heovl.im:2052
www.heovl.im:2082
www.heovl.im:2086
www.heovl.im:2095
www.heovl.im:443
www.heovl.im:2053
www.heovl.im:2083
www.heovl.im:2087
www.heovl.im:2096
www.heovl.im:8443
trisis.heovl.im:80
trisis.heovl.im:22
trisis.heovl.im:8080
trisis.heovl.im:8880
trisis.heovl.im:2052
trisis.heovl.im:2082
trisis.heovl.im:2086
trisis.heovl.im:2095
trisis.heovl.im:443
trisis.heovl.im:2053
trisis.heovl.im:2083
trisis.heovl.im:2087
trisis.heovl.im:2096
trisis.heovl.im:8443
stuxnet.heovl.im:80
stuxnet.heovl.im:22
stuxnet.heovl.im:8080
stuxnet.heovl.im:8880
stuxnet.heovl.im:2052
stuxnet.heovl.im:2082
stuxnet.heovl.im:2086
stuxnet.heovl.im:2095
stuxnet.heovl.im:443
stuxnet.heovl.im:2053
stuxnet.heovl.im:2083
stuxnet.heovl.im:2087
stuxnet.heovl.im:2096
stuxnet.heovl.im:8443

Mutex

NYIWkIkHtkq7

Attributes

delay
0
install
true
install_file
7hnw2u.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 2 IoCs

rat

resource	yara_rule
behavioral1/files/0x000800000002452f-8.dat	family_asyncrat
behavioral1/memory/4384-13-0x00000000051D0000-0x00000000051E0000-memory.dmp	family_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-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe

Executes dropped EXE 2 IoCs

pid	Process
4384	7hnw2u.exe
540	7hnw2u.exe

Outbound SSH connection to public host 2 TTPs 4 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc	pid	Process
SSH destination	6	104.26.7.168:22	4384	7hnw2u.exe
SSH destination	14	172.67.71.133:22	4384	7hnw2u.exe
SSH destination	33	104.26.6.168:22	4384	7hnw2u.exe
SSH destination	72	104.26.7.168:22	4384	7hnw2u.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1684	cmd.exe
4172	cmd.exe

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	7hnw2u.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7hnw2u.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2752	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
4724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
Token: SeDebugPrivilege	4384	7hnw2u.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 1684	3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe	86
PID 3948 wrote to memory of 4172	3948	6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe	88
PID 4172 wrote to memory of 2752	4172	cmd.exe	90
PID 1684 wrote to memory of 4724	1684	cmd.exe	91
PID 4172 wrote to memory of 540	4172	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe
"C:\Users\Admin\AppData\Local\Temp\6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "7hnw2u" /tr '"C:\Users\Admin\AppData\Roaming\7hnw2u.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "7hnw2u" /tr '"C:\Users\Admin\AppData\Roaming\7hnw2u.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4724
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3544.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4172
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2752
- - C:\Users\Admin\AppData\Roaming\7hnw2u.exe
    "C:\Users\Admin\AppData\Roaming\7hnw2u.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:540

C:\Users\Admin\AppData\Roaming\7hnw2u.exe
"C:\Users\Admin\AppData\Roaming\7hnw2u.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4384

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

Network Service Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

1

T1572

Exfiltration

Impact

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Downloads

tmp3544.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3544.tmp.bat
Size 150B
SHA256 3d301dfb52573c331f74d0cbadf01b12be0dad1464a04c5664425116c7ffa5d9
MD5 acbde0db1cf6b8abb7124b8df3e42db9
SHA1 e4983aafc078df36642b91ac546367314b564aa0
SHA512 fc5e59b85181f80adfef52ff26dccac07cc149cd49d37fdfd44b4b7393fad3cdbe5469464d69338cfb70f0fe5ab0842c34629e163ca608a9d71abab7613cfd44
TLSH
T120C02B8266C5EA6E2D09142336FBD4AEA1727C193F44BF90D304800F6281C48F0EA341
MD5 SHA1 SHA512 TLSH

Submit Download

7hnw2u.exe

Path C:\Users\Admin\AppData\Roaming\7hnw2u.exe
Size 45KB
SHA256 6dd7ca218ba5c3701aa2259740ba5d4ca9775b762eff96dd47ec1fd9d3fd66a9
MD5 576b419e36e5125076047e4f972515e4
SHA1 0d09c76acf146cb8d00e31509352ab2065537f18
SHA512 db1687dd8f4ebd6c28b255df0dc9851c4efe29164f1bf08b83db428c4549733880427fe562e0b55bee4c627106e2c5ba0940ac7bdd81d1865ff9eb58f77e8d42
SSDEEP 768:QulLJTEs+EgWUKJTGmo2q94DEbHBqj2OPI/pzjbDgX3iIOOsq8SlyVmCmdDUTfBH:QulLJTE9X2XyoK3/p3bcXSFOAS8oDgdN
TLSH
T149230A003BE8C13BF27E4F7899F26145867AF6633603D6891CC451975623FC6DA42AEE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3948-0-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

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memory/3948-1-0x0000000005460000-0x0000000005470000-memory.dmp

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memory/3948-2-0x0000000005470000-0x000000000550C000-memory.dmp

Download

memory/4384-10-0x00000000051D0000-0x00000000051E0000-memory.dmp

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memory/4384-13-0x00000000051D0000-0x00000000051E0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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