e89ee57f1fae46360238aabba747781e317e39145fa8c335434b03f41072a031

Analysis

max time kernel
131s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 11:34

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General

Target

1b27967ee681db027fbe0a5f64f99a88.exe
Size

241KB
MD5

1b27967ee681db027fbe0a5f64f99a88
SHA1

3c458cab4a6aaaa913917cca8291a70ccd2cb7ae
SHA256

e89ee57f1fae46360238aabba747781e317e39145fa8c335434b03f41072a031
SHA512

e93c8c6a066a8f52de8ef9358594bf103b2173e4c8b6c97d3c9d986fea8300d7bbfc0146c5fb6af42be98cb974cae2600b8c98dda942b9775206d723a09dcc34
SSDEEP

6144:/qX8cOQHmxVDprCwBrfazfsRj8LZsxbzSNmbofyL11s:iX8jQGxjLwkRj8FsxbzSNqo6LY

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	1b27967ee681db027fbe0a5f64f99a88.exe

Loads dropped DLL 3 IoCs

pid	Process
1004	1b27967ee681db027fbe0a5f64f99a88.exe
1004	1b27967ee681db027fbe0a5f64f99a88.exe
1004	1b27967ee681db027fbe0a5f64f99a88.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1004-3-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/1004-10-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/1004-9-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/1004-5-0x0000000000400000-0x000000000049A000-memory.dmp	upx
behavioral2/memory/1004-4-0x0000000000400000-0x000000000049A000-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\\1b27967ee681db027fbe0a5f64f99a88.exe"	1b27967ee681db027fbe0a5f64f99a88.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Packet.dll	1b27967ee681db027fbe0a5f64f99a88.exe
File created	C:\Windows\SysWOW64\wpcap.dll	1b27967ee681db027fbe0a5f64f99a88.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4748	1004	WerFault.exe	16

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1004	1b27967ee681db027fbe0a5f64f99a88.exe
1004	1b27967ee681db027fbe0a5f64f99a88.exe

C:\Users\Admin\AppData\Local\Temp\1b27967ee681db027fbe0a5f64f99a88.exe
"C:\Users\Admin\AppData\Local\Temp\1b27967ee681db027fbe0a5f64f99a88.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:1004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1004 -s 488
  2⤵
  - Program crash
  PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1004 -ip 1004
1⤵
PID:1472

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/1004-3-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1004-17-0x0000000002120000-0x0000000002139000-memory.dmp

Filesize
100KB

Download
memory/1004-10-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1004-9-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1004-5-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1004-4-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1004-1-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/1004-0-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download