9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3

General

Target

9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe
Size

246KB
MD5

57b7f75667fb705abd2cad5a8cc90f49
SHA1

bea3465bc1c783b413d9b01d300bcaf175a8c00b
SHA256

9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3
SHA512

240f7009e205048bfc2b2c459b3506353013c701b74f9b7efa34c7d25b4ef0ba1f18cdb11534aa15b347547b397e9f564c46ad0354081d4a7104be943c545775
SSDEEP

6144:6lez2ssftlVN+zBfGrSWm+omDAgQsSygGG2SzA9u:H6silNoGSJ+omDAdsWGLS8k

Score

9^/10

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/2620-14-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2620-17-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2620-19-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2620-25-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/memory/4552-1-0x0000000000400000-0x000000000047301D-memory.dmp	UPX
behavioral2/files/0x0007000000023205-3.dat	UPX
behavioral2/memory/3644-9-0x0000000000400000-0x000000000047301D-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
3644	owkfkmce.exe

Executes dropped EXE 2 IoCs

pid	Process
3644	owkfkmce.exe
2620	asa.exe

Loads dropped DLL 1 IoCs

pid	Process
2620	asa.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

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4552-1-0x0000000000400000-0x000000000047301D-memory.dmp	upx
behavioral2/files/0x0007000000023205-3.dat	upx
behavioral2/memory/3644-9-0x0000000000400000-0x000000000047301D-memory.dmp	upx

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-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wfl = "c:\\Program Files\\pqhlw\\asa.exe \"c:\\Program Files\\pqhlw\\asawb.dll\",WriteErrorLog"	asa.exe

Enumerates connected drives 3 TTPs 2 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:	asa.exe
File opened (read-only)	\??\b:	asa.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	asa.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\pqhlw	owkfkmce.exe
File created	\??\c:\Program Files\pqhlw\asawb.dll	owkfkmce.exe
File created	\??\c:\Program Files\pqhlw\asa.exe	owkfkmce.exe
File opened for modification	\??\c:\Program Files\pqhlw\asa.exe	owkfkmce.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	asa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	asa.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4876	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2620	asa.exe
2620	asa.exe
2620	asa.exe
2620	asa.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	asa.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4552	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe
3644	owkfkmce.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 3164	4552	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	88
PID 4552 wrote to memory of 3164	4552	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	88
PID 4552 wrote to memory of 3164	4552	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	88
PID 3164 wrote to memory of 4876	3164	cmd.exe	90
PID 3164 wrote to memory of 4876	3164	cmd.exe	90
PID 3164 wrote to memory of 4876	3164	cmd.exe	90
PID 3164 wrote to memory of 3644	3164	cmd.exe	92
PID 3164 wrote to memory of 3644	3164	cmd.exe	92
PID 3164 wrote to memory of 3644	3164	cmd.exe	92
PID 3644 wrote to memory of 2620	3644	owkfkmce.exe	93
PID 3644 wrote to memory of 2620	3644	owkfkmce.exe	93
PID 3644 wrote to memory of 2620	3644	owkfkmce.exe	93

C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe
"C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\owkfkmce.exe "C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3164
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:4876
- - C:\Users\Admin\AppData\Local\Temp\owkfkmce.exe
    C:\Users\Admin\AppData\Local\Temp\\owkfkmce.exe "C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3644
  - - \??\c:\Program Files\pqhlw\asa.exe
      "c:\Program Files\pqhlw\asa.exe" "c:\Program Files\pqhlw\asawb.dll",WriteErrorLog C:\Users\Admin\AppData\Local\Temp\owkfkmce.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2620

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

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\pqhlw\asa.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

Filesize
246KB

MD5
eaf5a7656a327a054434bee953eb1a30

SHA1
f20595c4c9e9b3e02e989582a7b3879e2493320d

SHA256
fb352deac99a2916f5078644a5207c9bf4a1b370615a5db4b2c3bf6c603f58af

SHA512
639f9da84667b077a3c9d8aefe2d5c00bde5b4bd5f4bbc6b3b7b3b1ed658d21484efdeafc538bce88c8bce8272f8877143df5172aaaa065c06a005c534238f3a

Download Submit
\??\c:\Program Files\pqhlw\asawb.dll

Filesize
181KB

MD5
6e2da01c637db2bde6b7dbd577eb00bd

SHA1
05ffcc54e23d3f6c8348d066071a2179f53ce5c1

SHA256
90e5303fbe5a871fcdae6cbdfc0a6e882323a7bced2538627c6fbd760a951143

SHA512
26307b2eddfcdbfeb6a409a9026e18bc285c518d60c5fc52f582ac3af92b7ad5b85a8c194323d5e818edee02af27a07537717bfc7eed1090747a192e7e5344c2

Download Submit
memory/2620-13-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2620-14-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2620-15-0x00000000023F0000-0x00000000023F2000-memory.dmp

Filesize
8KB

Download
memory/2620-17-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2620-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2620-25-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/3644-9-0x0000000000400000-0x000000000047301D-memory.dmp

Filesize
460KB

Download
memory/4552-1-0x0000000000400000-0x000000000047301D-memory.dmp

Filesize
460KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads