b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 23:09

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General

Target

b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Size

693KB
MD5

02b75e96d9b1ade54981ac2d077c9aef
SHA1

76f9d2aa57ef9837dfa94b92463f545dbe4fc8d4
SHA256

b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7
SHA512

e31f6a1e42a9daefbceb986ba2bef96c3db907e99c83c9b23ea806fc2711a6da4685200db751a323c4ae1112b23c4ce2591eed4da6efffd280eb556e1418a3a5
SSDEEP

12288:l8kxNhOZElO5kkWjhD4AcGsGtAtScw3qEKB:WqEkfFN145

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4704	PVKML.EXE

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	PVKML.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Program Files\\KVMCN.EXE \"%1\" %*"	PVKML.EXE

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WJVPF.EXE = "C:\\Program Files\\WJVPF.EXE"	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe

Enumerates connected drives 3 TTPs 34 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)	\??\R:	PVKML.EXE
File opened (read-only)	\??\M:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\Q:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\E:	PVKML.EXE
File opened (read-only)	\??\I:	PVKML.EXE
File opened (read-only)	\??\N:	PVKML.EXE
File opened (read-only)	\??\L:	PVKML.EXE
File opened (read-only)	\??\T:	PVKML.EXE
File opened (read-only)	\??\E:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\J:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\O:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\U:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\H:	PVKML.EXE
File opened (read-only)	\??\U:	PVKML.EXE
File opened (read-only)	\??\G:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\V:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\M:	PVKML.EXE
File opened (read-only)	\??\P:	PVKML.EXE
File opened (read-only)	\??\S:	PVKML.EXE
File opened (read-only)	\??\I:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\N:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\R:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\S:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\O:	PVKML.EXE
File opened (read-only)	\??\V:	PVKML.EXE
File opened (read-only)	\??\H:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\K:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\J:	PVKML.EXE
File opened (read-only)	\??\L:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\T:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\G:	PVKML.EXE
File opened (read-only)	\??\Q:	PVKML.EXE
File opened (read-only)	\??\P:	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened (read-only)	\??\K:	PVKML.EXE

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\PVKML.EXE	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File created	C:\Program Files\ILPWM.EXE	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File opened for modification	C:\Program Files\ILPWM.EXE	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File created	C:\Program Files\WJVPF.EXE	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
File created	C:\Program Files\KVMCN.EXE	PVKML.EXE
File created	C:\Program Files (x86)\PVKML.EXE	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe

Modifies registry class 18 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "F:\\$RECYCLE.BIN\\WHNWUYG.EXE \"%1\""	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Program Files\\KVMCN.EXE \"%1\" %*"	PVKML.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "F:\\$RECYCLE.BIN\\PXSFVCU.EXE \"%1\" %*"	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command\ = "C:\\Program Files\\ILPWM.EXE %1"	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	PVKML.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "F:\\$RECYCLE.BIN\\WHNWUYG.EXE %1"	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command\ = "F:\\$RECYCLE.BIN\\WHNWUYG.EXE %1"	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Program Files\\ILPWM.EXE \"%1\""	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4704	PVKML.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 4704	1264	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe	87
PID 1264 wrote to memory of 4704	1264	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe	87
PID 1264 wrote to memory of 4704	1264	b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe	87

C:\Users\Admin\AppData\Local\Temp\b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe
"C:\Users\Admin\AppData\Local\Temp\b6a8f43ecaf81a020478e315954f4d65d9bce0e1d98635b350ac3fa1335b3df7.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Program Files (x86)\PVKML.EXE
  "C:\Program Files (x86)\PVKML.EXE"
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:4704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\PVKML.EXE

Filesize
693KB

MD5
956a126a2ba05939872fb856d9f616b6

SHA1
eb711d5534426d7166a1a235ce236294173bfdc0

SHA256
eede4a86690564e942cc16482520d8dcb79851cbd078c5ed480a71ffc9e99125

SHA512
8788ae51956be0e641e457371e90d92cb3849184a1b1462dfdbfff6e7798cea294b40f3b4987489f76fcbafeb4ea4c3247c9ffb42d6cfd68c67fb213e5e6eaae

Download Submit
F:\$RECYCLE.BIN\WHNWUYG.EXE

Filesize
694KB

MD5
a6113815cefbcf09f387bb5486ad03d3

SHA1
b07f2e521d5924057dae81e2d5c63ff808e73edf

SHA256
59b7b67864e72632e1971c2f97b4870a1c1ca05f9442f40f9af297e0f87d591a

SHA512
1378c5d401c308078a383c2316fa89c6ec48b8e0c62898e9836f12f32b4cd918f3db404ea4e69c1b1e89e0a0c75bc25a8e206cbab35afa263d8fe3f5ba4aca8b

Download Submit
\??\c:\filedebug

Filesize
296B

MD5
c72fd472503871dd1bcc78651eb1b7a4

SHA1
aae6546f997f6c1d830d468badf8284ff76da54c

SHA256
cc6b00d19c664b1539ec7327c7dc93053c5176445e283d200210a16db8be864c

SHA512
5ffa0668065abd53a6ff2f0ba71ec4f1c88bfa01d666364d8ca1954c74adb6ad12dd0888d0bc57ad66881fe3818aac751a5be21498a650952b50a2cae90b768e

Download Submit
memory/1264-4-0x0000000002320000-0x0000000002321000-memory.dmp

Filesize
4KB

Download
memory/1264-23-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-29-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/4704-24-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-28-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-22-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/4704-30-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-32-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-33-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-34-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-36-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-37-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-38-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-40-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4704-41-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads