dd17e98c06fd2b90e68eacf2f77dec5336d2484193aa879a023bdddbc126ec2e

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 08:24

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General

Target

5f8c55cd36d4fcaa3ff461ac5145c2df.exe
Size

242KB
MD5

5f8c55cd36d4fcaa3ff461ac5145c2df
SHA1

ed4d970224d3478a477593f7bf2d7323444431da
SHA256

dd17e98c06fd2b90e68eacf2f77dec5336d2484193aa879a023bdddbc126ec2e
SHA512

94cd34c7fe4e80c89684f965b29f2955e498ed85bbffed8e5f97d0fa02af3c0f7658e3f1232b024f9876a4bb8c9699730487dc4fb709d47f4ca4abe2cd82e91e
SSDEEP

6144:4cm3+GoihAffSA2wk7pMOhBdq7IlTkYNk7aEQq4Mfum:4DFoihqffYMOvdq7IIYZEaM/

Score

8^/10

persistence upx

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\npf.sys	5f8c55cd36d4fcaa3ff461ac5145c2df.exe

Loads dropped DLL 3 IoCs

pid	Process
3516	5f8c55cd36d4fcaa3ff461ac5145c2df.exe
3516	5f8c55cd36d4fcaa3ff461ac5145c2df.exe
3516	5f8c55cd36d4fcaa3ff461ac5145c2df.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3516-7-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/3516-6-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/3516-5-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/3516-4-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/3516-3-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/3516-20-0x0000000000400000-0x000000000049A000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sniffer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5f8c55cd36d4fcaa3ff461ac5145c2df.exe"	5f8c55cd36d4fcaa3ff461ac5145c2df.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Packet.dll	5f8c55cd36d4fcaa3ff461ac5145c2df.exe
File created	C:\Windows\SysWOW64\wpcap.dll	5f8c55cd36d4fcaa3ff461ac5145c2df.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4500	3516	WerFault.exe	15

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3516	5f8c55cd36d4fcaa3ff461ac5145c2df.exe
3516	5f8c55cd36d4fcaa3ff461ac5145c2df.exe

C:\Users\Admin\AppData\Local\Temp\5f8c55cd36d4fcaa3ff461ac5145c2df.exe
"C:\Users\Admin\AppData\Local\Temp\5f8c55cd36d4fcaa3ff461ac5145c2df.exe"
1⤵
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:3516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3516 -s 400
  2⤵
  - Program crash
  PID:4500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3516 -ip 3516
1⤵
PID:4464

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3516-1-0x0000000000740000-0x0000000000741000-memory.dmp

Filesize
4KB

Download
memory/3516-0-0x0000000000740000-0x0000000000741000-memory.dmp

Filesize
4KB

Download
memory/3516-7-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3516-17-0x0000000002260000-0x0000000002279000-memory.dmp

Filesize
100KB

Download
memory/3516-6-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3516-5-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3516-4-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3516-3-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3516-20-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download