asyncrat | f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb

General

Target
f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
Size 45KB
Sample260531-py4alaaz6m
SHA256 f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb
MD5 e67e2ff0f2b38da0c3a9fd49253f4070
SHA1 281be82ebbddeea3590fafd195d8e554635f434d
SHA512 99ee71e89ffa1f572ec80ca352fb31f6c1e44d6b73356e1fc53e2635c4cd8171ab781d375765514c316632f59ff9035f4a939392d32995ebf53d609e4c80b274
SSDEEP 768:wuZ5pT1Uu4/cWUeT66mo2q1H0eUNEARViZPI6zjb7g83ixgGhYBDZMx:wuZ5pT1tc2uUe+iW63bE8SxhhedMx
TLSH
T156233B003BE9812BF2BE4F7869F26145867AF5637603D54A1CC441D75623FC68A43AFD
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

sexhiihi.blog:443
sexhiihi.blog:80
sexhiihi.blog:7797
sexhiihi.blog:8707
sexhiihi.blog:6620
www.sexhiihi.blog:443
www.sexhiihi.blog:80
www.sexhiihi.blog:7797
www.sexhiihi.blog:8707
www.sexhiihi.blog:6620
qbot.sexhiihi.blog:443
qbot.sexhiihi.blog:80
qbot.sexhiihi.blog:7797
qbot.sexhiihi.blog:8707
qbot.sexhiihi.blog:6620
revil.sexhiihi.blog:443
revil.sexhiihi.blog:80
revil.sexhiihi.blog:7797
revil.sexhiihi.blog:8707
revil.sexhiihi.blog:6620
blaster.sexhiihi.blog:443
blaster.sexhiihi.blog:80
blaster.sexhiihi.blog:7797
blaster.sexhiihi.blog:8707
blaster.sexhiihi.blog:6620
socgholish.sexhiihi.blog:443
socgholish.sexhiihi.blog:80
socgholish.sexhiihi.blog:7797
socgholish.sexhiihi.blog:8707
socgholish.sexhiihi.blog:6620

Mutex

HIums0le8QKT

Attributes

delay
0
install
true
install_file
x28i.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/0x001f00000002b3c4-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4728	x28i.exe
2280	x28i.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x28i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x28i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
804	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
3572	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
Token: SeDebugPrivilege	4728	x28i.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1600	1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe	80
PID 1964 wrote to memory of 5008	1964	f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe	82
PID 5008 wrote to memory of 804	5008	cmd.exe	84
PID 1600 wrote to memory of 3572	1600	cmd.exe	85
PID 5008 wrote to memory of 2280	5008	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe
"C:\Users\Admin\AppData\Local\Temp\f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "x28i" /tr '"C:\Users\Admin\AppData\Roaming\x28i.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1600
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "x28i" /tr '"C:\Users\Admin\AppData\Roaming\x28i.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3572
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp340B.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:804
- - C:\Users\Admin\AppData\Roaming\x28i.exe
    "C:\Users\Admin\AppData\Roaming\x28i.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2280

C:\Users\Admin\AppData\Roaming\x28i.exe
"C:\Users\Admin\AppData\Roaming\x28i.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4728

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp340B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp340B.tmp.bat
Size 148B
SHA256 86a82bb885e6f5b3e788366edc6cbda7dbc2c5c4b08f00526257ecb258c4d2ea
MD5 49f9c1420a92ceea4f9e9d058701deaa
SHA1 a3e59972605b900a198ddc831a13fcce7973ea66
SHA512 99787ff993158c64cdf19f0a9c4ebb36564ce025cbea36c594bc1ff8c9188301b14e7896fd4e6eefa99e12a713740bc6350fc6ef2835e3618935b5795dd67f2d
TLSH
T1A4C08C42A1C5AA0E2A0614130AFAD48C91A26C293E40AB008384440D6281848E099285
MD5 SHA1 SHA512 TLSH

Submit Download

x28i.exe

Path C:\Users\Admin\AppData\Roaming\x28i.exe
Size 45KB
SHA256 f43a569827173198dfa66aa59b6111f823907024e8b803719f22e4d6bdeea6bb
MD5 e67e2ff0f2b38da0c3a9fd49253f4070
SHA1 281be82ebbddeea3590fafd195d8e554635f434d
SHA512 99ee71e89ffa1f572ec80ca352fb31f6c1e44d6b73356e1fc53e2635c4cd8171ab781d375765514c316632f59ff9035f4a939392d32995ebf53d609e4c80b274
SSDEEP 768:wuZ5pT1Uu4/cWUeT66mo2q1H0eUNEARViZPI6zjb7g83ixgGhYBDZMx:wuZ5pT1tc2uUe+iW63bE8SxhhedMx
TLSH
T156233B003BE9812BF2BE4F7869F26145867AF5637603D54A1CC441D75623FC68A43AFD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1964-0-0x0000000000280000-0x0000000000292000-memory.dmp

Download

memory/1964-1-0x0000000004E60000-0x0000000004E70000-memory.dmp

Download

memory/1964-2-0x0000000004D40000-0x0000000004DDC000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads