50c4f3d12114e2a0ea2b5846292fb7194f86143e0f83554ee594848f8761b810

Analysis

max time kernel
91s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 11:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

9837500a3ac40b793d6265ffb799cf90N.exe
Size

134KB
MD5

9837500a3ac40b793d6265ffb799cf90
SHA1

381919df987fdf7a26e2de95c7b9965b1b137a96
SHA256

50c4f3d12114e2a0ea2b5846292fb7194f86143e0f83554ee594848f8761b810
SHA512

a8ac184da7f455336ba985b33580cdbf619015c2d355a2449ee94334276cb77dcfd9c6938b4d7561be7ffc97e3fcf3991d6d3fdfa228abf6cd5da005fae65c99
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QfQ:riAyLN9aa+9U2rW1ip6pr2At7NZuQo

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3928	WwanSvc.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1996-0-0x0000000000460000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3928-4-0x0000000000470000-0x0000000000498000-memory.dmp	upx
behavioral2/files/0x000800000002344a-3.dat	upx
behavioral2/memory/1996-6-0x0000000000460000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3928-7-0x0000000000470000-0x0000000000498000-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\Window Update = "\"C:\\ProgramData\\Update\\WwanSvc.exe\" /run"	9837500a3ac40b793d6265ffb799cf90N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9837500a3ac40b793d6265ffb799cf90N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 3928	1996	9837500a3ac40b793d6265ffb799cf90N.exe	83
PID 1996 wrote to memory of 3928	1996	9837500a3ac40b793d6265ffb799cf90N.exe	83
PID 1996 wrote to memory of 3928	1996	9837500a3ac40b793d6265ffb799cf90N.exe	83

C:\Users\Admin\AppData\Local\Temp\9837500a3ac40b793d6265ffb799cf90N.exe
"C:\Users\Admin\AppData\Local\Temp\9837500a3ac40b793d6265ffb799cf90N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3928

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Update\WwanSvc.exe

Filesize
134KB

MD5
148b1864628f0ad1be6290d2ef9748ab

SHA1
6be666092b8dfbb13b439b6596e418a794c6e213

SHA256
13ccee6ba52d3df0f972cc10268c838d5deababe293da2a211f7cc5471cbf754

SHA512
3ae8230ea944c1eaeb8d5d8df4ba389f55a3d7371a2ad98ab9d760ef372e3ac5c3c8f0e0a23abcf8dc2f654e02acef3b46bc5194ad83afba363b9dc92663ed26

Download Submit
memory/1996-0-0x0000000000460000-0x0000000000488000-memory.dmp

Filesize
160KB

Download
memory/1996-6-0x0000000000460000-0x0000000000488000-memory.dmp

Filesize
160KB

Download
memory/3928-4-0x0000000000470000-0x0000000000498000-memory.dmp

Filesize
160KB

Download
memory/3928-7-0x0000000000470000-0x0000000000498000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads