asyncrat | 9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242

General

Target
9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
Size 45KB
Sample260530-ykppqaex4k
SHA256 9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242
MD5 4009eb0fdfa1f13a4c8d593b6171490e
SHA1 fd95468531f7f68b904a776dcde060fe5357baed
SHA512 cabf6a84a511c1275d2433b88d67e2c7ec9f9d3438f9592a4444d5b007971e161cbcb6588262b66c7f9206bd26809441251153aee0a2bc8cc5d7783af9c1f103
SSDEEP 768:xuRXNT9gGHBWUZohrmo2q9K9YikqHztOPIUzjbQgP3i1smf7S2uzs0rdBDZzx:xuRXNT9Bw23alK3U3bXPS1Q2uznfdzx
TLSH
T170232B003BE8813BF2BE9F78ADF26105867AF1672603D6491CC452D75713BC69A426FD
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

phimsexkche.vip:443
phimsexkche.vip:80
phimsexkche.vip:7797
phimsexkche.vip:8707
phimsexkche.vip:6620
www.phimsexkche.vip:443
www.phimsexkche.vip:80
www.phimsexkche.vip:7797
www.phimsexkche.vip:8707
www.phimsexkche.vip:6620
socgholish.phimsexkche.vip:443
socgholish.phimsexkche.vip:80
socgholish.phimsexkche.vip:7797
socgholish.phimsexkche.vip:8707
socgholish.phimsexkche.vip:6620
sobig.phimsexkche.vip:443
sobig.phimsexkche.vip:80
sobig.phimsexkche.vip:7797
sobig.phimsexkche.vip:8707
sobig.phimsexkche.vip:6620

Mutex

8u9uEL1RaaNd

Attributes

delay
0
install
true
install_file
q21sa6h.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/0x001a00000002b571-8.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3344	q21sa6h.exe
852	q21sa6h.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	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	q21sa6h.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	q21sa6h.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
656	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
5620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
Token: SeDebugPrivilege	3344	q21sa6h.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 4228	5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe	80
PID 5096 wrote to memory of 4960	5096	9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe	82
PID 4228 wrote to memory of 5620	4228	cmd.exe	84
PID 4960 wrote to memory of 656	4960	cmd.exe	85
PID 4960 wrote to memory of 852	4960	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe
"C:\Users\Admin\AppData\Local\Temp\9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "q21sa6h" /tr '"C:\Users\Admin\AppData\Roaming\q21sa6h.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4228
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "q21sa6h" /tr '"C:\Users\Admin\AppData\Roaming\q21sa6h.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5620
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2565.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4960
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:656
- - C:\Users\Admin\AppData\Roaming\q21sa6h.exe
    "C:\Users\Admin\AppData\Roaming\q21sa6h.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:852

C:\Users\Admin\AppData\Roaming\q21sa6h.exe
"C:\Users\Admin\AppData\Roaming\q21sa6h.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3344

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

tmp2565.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2565.tmp.bat
Size 151B
SHA256 16e43c556ffa050a6bf52c7ed91b68794fb1ed3c61f6ee4dd2b6888d7b1db0e1
MD5 a0ef99867f5693f13774431e47e53517
SHA1 aa988e73d694f1fa438c21d13755cb3ab47b4726
SHA512 c459a4829d038c41b75e98b4fd7df342e59bc2911028af66b25a15684db3e1fb183de20d120b7a8adefeb406f89bb9b8f5eaef4a40201dcb317de23ed69ae090
TLSH
T186C08C5266C5AA5E2805581312BAD48CA1B67C293E80AB00C3448049A280898F299282
MD5 SHA1 SHA512 TLSH

Submit Download

q21sa6h.exe

Path C:\Users\Admin\AppData\Roaming\q21sa6h.exe
Size 45KB
SHA256 9892b3339959c460e6babf5863635d0f70e5a6fe5a421c067d5437d2cd54d242
MD5 4009eb0fdfa1f13a4c8d593b6171490e
SHA1 fd95468531f7f68b904a776dcde060fe5357baed
SHA512 cabf6a84a511c1275d2433b88d67e2c7ec9f9d3438f9592a4444d5b007971e161cbcb6588262b66c7f9206bd26809441251153aee0a2bc8cc5d7783af9c1f103
SSDEEP 768:xuRXNT9gGHBWUZohrmo2q9K9YikqHztOPIUzjbQgP3i1smf7S2uzs0rdBDZzx:xuRXNT9Bw23alK3U3bXPS1Q2uznfdzx
TLSH
T170232B003BE8813BF2BE9F78ADF26105867AF1672603D6491CC452D75713BC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5096-0-0x0000000000BE0000-0x0000000000BF2000-memory.dmp

Download

memory/5096-1-0x0000000005640000-0x0000000005650000-memory.dmp

Download

memory/5096-2-0x00000000056F0000-0x000000000578C000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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