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 6 IoCs

resource	yara_rule
behavioral1/memory/2660-22-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2660-24-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2660-26-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2660-30-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2660-34-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2660-38-0x0000000010000000-0x000000001004E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2936-1-0x0000000000400000-0x000000000047301D-memory.dmp	UPX
behavioral1/files/0x000c000000012240-2.dat	UPX
behavioral1/memory/2536-11-0x0000000000400000-0x000000000047301D-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2536	hnhcodzti.exe

Executes dropped EXE 2 IoCs

pid	Process
2536	hnhcodzti.exe
2660	coqkzfh.exe

Loads dropped DLL 7 IoCs

pid	Process
2748	cmd.exe
2748	cmd.exe
2536	hnhcodzti.exe
2660	coqkzfh.exe
2660	coqkzfh.exe
2660	coqkzfh.exe
2660	coqkzfh.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
behavioral1/memory/2936-1-0x0000000000400000-0x000000000047301D-memory.dmp	upx
behavioral1/files/0x000c000000012240-2.dat	upx
behavioral1/memory/2536-11-0x0000000000400000-0x000000000047301D-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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\wfl = "c:\\Program Files\\pyvtdnskt\\coqkzfh.exe \"c:\\Program Files\\pyvtdnskt\\coqkzfh.dll\",WriteErrorLog"	coqkzfh.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)	\??\h:	coqkzfh.exe
File opened (read-only)	\??\p:	coqkzfh.exe
File opened (read-only)	\??\q:	coqkzfh.exe
File opened (read-only)	\??\r:	coqkzfh.exe
File opened (read-only)	\??\v:	coqkzfh.exe
File opened (read-only)	\??\z:	coqkzfh.exe
File opened (read-only)	\??\b:	coqkzfh.exe
File opened (read-only)	\??\g:	coqkzfh.exe
File opened (read-only)	\??\i:	coqkzfh.exe
File opened (read-only)	\??\j:	coqkzfh.exe
File opened (read-only)	\??\s:	coqkzfh.exe
File opened (read-only)	\??\t:	coqkzfh.exe
File opened (read-only)	\??\x:	coqkzfh.exe
File opened (read-only)	\??\a:	coqkzfh.exe
File opened (read-only)	\??\k:	coqkzfh.exe
File opened (read-only)	\??\l:	coqkzfh.exe
File opened (read-only)	\??\m:	coqkzfh.exe
File opened (read-only)	\??\o:	coqkzfh.exe
File opened (read-only)	\??\u:	coqkzfh.exe
File opened (read-only)	\??\w:	coqkzfh.exe
File opened (read-only)	\??\e:	coqkzfh.exe
File opened (read-only)	\??\n:	coqkzfh.exe
File opened (read-only)	\??\y:	coqkzfh.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	coqkzfh.exe

Drops file in Program Files directory 4 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2248	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2660	coqkzfh.exe
2660	coqkzfh.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	coqkzfh.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2936	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe
2536	hnhcodzti.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2748	2936	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	28
PID 2936 wrote to memory of 2748	2936	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	28
PID 2936 wrote to memory of 2748	2936	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	28
PID 2936 wrote to memory of 2748	2936	9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe	28
PID 2748 wrote to memory of 2248	2748	cmd.exe	30
PID 2748 wrote to memory of 2248	2748	cmd.exe	30
PID 2748 wrote to memory of 2248	2748	cmd.exe	30
PID 2748 wrote to memory of 2248	2748	cmd.exe	30
PID 2748 wrote to memory of 2536	2748	cmd.exe	31
PID 2748 wrote to memory of 2536	2748	cmd.exe	31
PID 2748 wrote to memory of 2536	2748	cmd.exe	31
PID 2748 wrote to memory of 2536	2748	cmd.exe	31
PID 2536 wrote to memory of 2660	2536	hnhcodzti.exe	32
PID 2536 wrote to memory of 2660	2536	hnhcodzti.exe	32
PID 2536 wrote to memory of 2660	2536	hnhcodzti.exe	32
PID 2536 wrote to memory of 2660	2536	hnhcodzti.exe	32

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:2936
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hnhcodzti.exe "C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:2248
- - C:\Users\Admin\AppData\Local\Temp\hnhcodzti.exe
    C:\Users\Admin\AppData\Local\Temp\\hnhcodzti.exe "C:\Users\Admin\AppData\Local\Temp\9f374c06a147db8596e113ffa63cf972457b6e9bc0879e24627fd726a39515e3.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - \??\c:\Program Files\pyvtdnskt\coqkzfh.exe
      "c:\Program Files\pyvtdnskt\coqkzfh.exe" "c:\Program Files\pyvtdnskt\coqkzfh.dll",WriteErrorLog C:\Users\Admin\AppData\Local\Temp\hnhcodzti.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:2660

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

Replay Monitor

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Downloads

\Program Files\pyvtdnskt\coqkzfh.dll

Filesize
181KB

MD5
3900694f864c3362f844d9e421e73f54

SHA1
0574f66c1e18d2ff839ccf445bf6105bf9e3a549

SHA256
ad9349597bd99f5bdc897f997fe86a440d4c5342480be855ff201e9e7df76999

SHA512
36348c24589b56e70cf478265ee58ce1d16c6f784aa453574b51396df0dc6e0c865ad7565cf3e98899e39cceb3c01ef4b352a0ad55b900445ea761f171eb5049

Download Submit
\Program Files\pyvtdnskt\coqkzfh.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\hnhcodzti.exe

Filesize
246KB

MD5
c20ca105d29366c2356fb1aaab9b83eb

SHA1
4320e78502dbfc522c93d18acb06c33bbfeb27a5

SHA256
f67cd74ab5305ef7a720acd81fc2d80dafe88d81816c9f0b0a5ed4ee9569fb01

SHA512
88f4092df95eaf1d7f1625ae779206f33e0197ddca63371c8cb29fbb32a3ab638eca40402b8a20f1df5ff7a37e396a735cd457c6a002fea635d6ff232f73af1f

Download Submit
memory/2536-11-0x0000000000400000-0x000000000047301D-memory.dmp

Filesize
460KB

Download
memory/2660-20-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-19-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-21-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/2660-22-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-24-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-26-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-28-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/2660-30-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-34-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2660-38-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2936-1-0x0000000000400000-0x000000000047301D-memory.dmp

Filesize
460KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads