a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f

General

Target

a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe
Size

155KB
MD5

8f3995a8206087b49c768d11e764f549
SHA1

3b2646b52ce19ef290748b9463c2c6c005c05dae
SHA256

a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f
SHA512

c7a01f936d0906c026e56dfb32f2a975ce43bbfb2c2f2613a2608f2027f37d26623773ddeeac0f1137e5acd4d4ad52c69d056d02ac47fb31ab50f7c59f3487d5
SSDEEP

3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dI:OPjEl6jLiQ1JW+Oy3p/

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0002000000022d14-12.dat	acprotect

Deletes itself 1 IoCs

pid	Process
1828	qomxntuq.exe

Executes dropped EXE 2 IoCs

pid	Process
1828	qomxntuq.exe
4288	yyw.exe

Loads dropped DLL 1 IoCs

pid	Process
4288	yyw.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Linycpy = "c:\\Program Files\\acqta\\yyw.exe \"c:\\Program Files\\acqta\\yywkr.dll\",SetHandle"	yyw.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\a:	yyw.exe
File opened (read-only)	\??\b:	yyw.exe
File opened (read-only)	\??\m:	yyw.exe
File opened (read-only)	\??\o:	yyw.exe
File opened (read-only)	\??\w:	yyw.exe
File opened (read-only)	\??\g:	yyw.exe
File opened (read-only)	\??\i:	yyw.exe
File opened (read-only)	\??\n:	yyw.exe
File opened (read-only)	\??\r:	yyw.exe
File opened (read-only)	\??\x:	yyw.exe
File opened (read-only)	\??\y:	yyw.exe
File opened (read-only)	\??\e:	yyw.exe
File opened (read-only)	\??\p:	yyw.exe
File opened (read-only)	\??\s:	yyw.exe
File opened (read-only)	\??\v:	yyw.exe
File opened (read-only)	\??\z:	yyw.exe
File opened (read-only)	\??\u:	yyw.exe
File opened (read-only)	\??\h:	yyw.exe
File opened (read-only)	\??\j:	yyw.exe
File opened (read-only)	\??\k:	yyw.exe
File opened (read-only)	\??\l:	yyw.exe
File opened (read-only)	\??\q:	yyw.exe
File opened (read-only)	\??\t:	yyw.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	yyw.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\acqta\yyw.exe	qomxntuq.exe
File opened for modification	\??\c:\Program Files\acqta\yyw.exe	qomxntuq.exe
File opened for modification	\??\c:\Program Files\acqta	qomxntuq.exe
File created	\??\c:\Program Files\acqta\yywkr.dll	qomxntuq.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qomxntuq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yyw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4020	PING.EXE
2288	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	yyw.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	yyw.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4020	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4288	yyw.exe
4288	yyw.exe
4288	yyw.exe
4288	yyw.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4288	yyw.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2524	a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe
1828	qomxntuq.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2288	2524	a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe	85
PID 2524 wrote to memory of 2288	2524	a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe	85
PID 2524 wrote to memory of 2288	2524	a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe	85
PID 2288 wrote to memory of 4020	2288	cmd.exe	88
PID 2288 wrote to memory of 4020	2288	cmd.exe	88
PID 2288 wrote to memory of 4020	2288	cmd.exe	88
PID 2288 wrote to memory of 1828	2288	cmd.exe	90
PID 2288 wrote to memory of 1828	2288	cmd.exe	90
PID 2288 wrote to memory of 1828	2288	cmd.exe	90
PID 1828 wrote to memory of 4288	1828	qomxntuq.exe	91
PID 1828 wrote to memory of 4288	1828	qomxntuq.exe	91
PID 1828 wrote to memory of 4288	1828	qomxntuq.exe	91

C:\Users\Admin\AppData\Local\Temp\a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe
"C:\Users\Admin\AppData\Local\Temp\a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qomxntuq.exe "C:\Users\Admin\AppData\Local\Temp\a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4020
- - C:\Users\Admin\AppData\Local\Temp\qomxntuq.exe
    C:\Users\Admin\AppData\Local\Temp\\qomxntuq.exe "C:\Users\Admin\AppData\Local\Temp\a636883703bd364b2c9b69d6ed619036b88ed58355c77ed9ab50a207b0b4cc6f.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1828
  - - \??\c:\Program Files\acqta\yyw.exe
      "c:\Program Files\acqta\yyw.exe" "c:\Program Files\acqta\yywkr.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\qomxntuq.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\acqta\yyw.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Users\Admin\AppData\Local\Temp\qomxntuq.exe

Filesize
156KB

MD5
b5f38a857c2531afab93498d8a818920

SHA1
f2d3fe86366891b20e014d0df484327dc79f8f6d

SHA256
ad92621a11d55d9c94674792c6e732a3bf2cea2b60069bea16ceba894f41e256

SHA512
b4cf05bbf31cc9120ae71c66278ff553441c9ae4f3537f2610ca0cd7787ef443369c5c81cf428d6e54b428f89a86ca78428ac6b5f0c2a752ff4ad14e8e1157e8

Download Submit
\??\c:\Program Files\acqta\yywkr.dll

Filesize
128KB

MD5
8d53d981bbb94a32cd1163be89b686b5

SHA1
dcdcea19612dac9b6fcd683ea58fbedc1e0f1210

SHA256
3a091ce11712a53e5dd3741f3b8be8065f7e1dcfd7c57ac0e39fd1ba38f39201

SHA512
a4aa75ffcbb8a06381baef56f7567b1fcd7f7c3fcca95e8e065989941d73b7e395be1b68cc6186e58d1d6a9e8e36305b17604cbe5ca39ac668c4f82b530b0a5f

Download Submit
memory/1828-11-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2524-0-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/2524-2-0x0000000000400000-0x000000000042F036-memory.dmp

Filesize
188KB

Download
memory/4288-15-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4288-17-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4288-19-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4288-21-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads