f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f | Triage

Analysis

max time kernel
21s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
01/05/2024, 04:56 UTC

Sharing

Report Analysis Logs

General

Target

f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe
Size

497KB
MD5

1302a044621104433f3c50b46648d898
SHA1

162750d2fc2491c113ab85c5e8dd2e3ce773c9ee
SHA256

f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f
SHA512

9d43417f19e7a10b2d719ab9a97a055da1214d801651754b5bba136bb968174987c14d16bb39365b8ec689e0db09424e9ff860ba9c79c6b207ed27de9c38ec29
SSDEEP

6144:J89MAPjz1gL5pRTMTTjMkId/BynSx7dEe6XwzRaktNP08NhKs39zo43fTtl1fayu:+b1gL5pRTcAkS/3hzN8qE43fm78V6

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 8 IoCs

resource	yara_rule
behavioral1/memory/2924-29-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/memory/2528-26-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/files/0x00080000000122bf-24.dat	UPX
behavioral1/memory/2108-21-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/memory/2924-20-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/memory/2748-12-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/memory/2748-0-0x0000000000400000-0x0000000000418000-memory.dmp	UPX
behavioral1/memory/2108-30-0x0000000000400000-0x0000000000418000-memory.dmp	UPX

Executes dropped EXE 4 IoCs

pid	Process
2924	MSWDM.EXE
2108	MSWDM.EXE
2636	F21CCF98DC32F79B995858AEF6396F60D678865717597E699C8BE1FB920ADB5F.EXE
2528	MSWDM.EXE

Loads dropped DLL 2 IoCs

pid	Process
2924	MSWDM.EXE
2544	Process not Found

UPX packed file 8 IoCs

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

resource	yara_rule
behavioral1/memory/2924-29-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2528-26-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/files/0x00080000000122bf-24.dat	upx
behavioral1/memory/2108-21-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2924-20-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2748-12-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2748-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2108-30-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE"	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE"	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE"	MSWDM.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE"	MSWDM.EXE

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\MSWDM.EXE	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe
File opened for modification	C:\Windows\dev1239.tmp	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2924	MSWDM.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 2108	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	28
PID 2748 wrote to memory of 2108	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	28
PID 2748 wrote to memory of 2108	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	28
PID 2748 wrote to memory of 2108	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	28
PID 2748 wrote to memory of 2924	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	29
PID 2748 wrote to memory of 2924	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	29
PID 2748 wrote to memory of 2924	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	29
PID 2748 wrote to memory of 2924	2748	f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe	29
PID 2924 wrote to memory of 2636	2924	MSWDM.EXE	30
PID 2924 wrote to memory of 2636	2924	MSWDM.EXE	30
PID 2924 wrote to memory of 2636	2924	MSWDM.EXE	30
PID 2924 wrote to memory of 2636	2924	MSWDM.EXE	30
PID 2924 wrote to memory of 2528	2924	MSWDM.EXE	32
PID 2924 wrote to memory of 2528	2924	MSWDM.EXE	32
PID 2924 wrote to memory of 2528	2924	MSWDM.EXE	32
PID 2924 wrote to memory of 2528	2924	MSWDM.EXE	32

C:\Users\Admin\AppData\Local\Temp\f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe
"C:\Users\Admin\AppData\Local\Temp\f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2748
- C:\WINDOWS\MSWDM.EXE
  "C:\WINDOWS\MSWDM.EXE"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:2108
- C:\WINDOWS\MSWDM.EXE
  -r!C:\Windows\dev1239.tmp!C:\Users\Admin\AppData\Local\Temp\f21ccf98dc32f79b995858aef6396f60d678865717597e699c8be1fb920adb5f.exe! !
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Users\Admin\AppData\Local\Temp\F21CCF98DC32F79B995858AEF6396F60D678865717597E699C8BE1FB920ADB5F.EXE
    3⤵
    - Executes dropped EXE
    PID:2636
- - C:\WINDOWS\MSWDM.EXE
    -e!C:\Windows\dev1239.tmp!C:\Users\Admin\AppData\Local\Temp\F21CCF98DC32F79B995858AEF6396F60D678865717597E699C8BE1FB920ADB5F.EXE!
    3⤵
    - Executes dropped EXE
    PID:2528

Network

No results found

No results found

10.127.255.255:78

MSWDM.EXE

46 B
1
10.255.255.255:78

MSWDM.EXE

46 B
1
10.127.0.255:78

MSWDM.EXE

46 B
1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\MSWDM.EXE

Filesize
39KB

MD5
8b4aef2d7b10876bedfc2d94d5bd152f

SHA1
a1017d53dcb9407659fc70c27ced4da77d01f33f

SHA256
c23788b417a47f7862bca534efe90ca6f2240f34063dc570e32da8bc7083fc93

SHA512
5ce19e078e0826f064b224f7e40cc6eca7b65e10bff51fd7bca316efa7b764a9ce208f3a3b86d20bed7f4d682db2c685b4f57508cd7392957dc5473e6068048c

Download Submit
C:\Windows\dev1239.tmp

Filesize
458KB

MD5
619f7135621b50fd1900ff24aade1524

SHA1
6c7ea8bbd435163ae3945cbef30ef6b9872a4591

SHA256
344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2

SHA512
2c7293c084d09bc2e3ae2d066dd7b331c810d9e2eeca8b236a8e87fdeb18e877b948747d3491fcaff245816507685250bd35f984c67a43b29b0ae31ecb2bd628

Download Submit
memory/2108-21-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2108-30-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-26-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2748-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2748-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2924-29-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2924-20-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download