240fc1bf7931cc1b5368a0f85035f505f8f4db5ffe6a3d1f4348ed8280ca0f16

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-07-2024 13:14

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General

Target

b5b35f2d87dbdb4d521336f5d8918e70N.exe
Size

134KB
MD5

b5b35f2d87dbdb4d521336f5d8918e70
SHA1

69b38fbbe7e4892f54fd17ce5c8efed7ecf6af3b
SHA256

240fc1bf7931cc1b5368a0f85035f505f8f4db5ffe6a3d1f4348ed8280ca0f16
SHA512

45839214bb4e076d57a5eb811e6c169bbd4e878bcdfecfa2295423b2e665a4b8f3a9a721aadb23e337f14b2737969e912172cf4d55107ad2f889ab68ec57c580
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QJ:riAyLN9aa+9U2rW1ip6pr2At7NZuQJ

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2348	WwanSvc.exe

Loads dropped DLL 1 IoCs

pid	Process
388	b5b35f2d87dbdb4d521336f5d8918e70N.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/388-1-0x0000000000FC0000-0x0000000000FE8000-memory.dmp	upx
behavioral1/files/0x0007000000018741-2.dat	upx
behavioral1/memory/2348-7-0x0000000000ED0000-0x0000000000EF8000-memory.dmp	upx
behavioral1/memory/388-9-0x0000000000FC0000-0x0000000000FE8000-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"	b5b35f2d87dbdb4d521336f5d8918e70N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 2348	388	b5b35f2d87dbdb4d521336f5d8918e70N.exe	31
PID 388 wrote to memory of 2348	388	b5b35f2d87dbdb4d521336f5d8918e70N.exe	31
PID 388 wrote to memory of 2348	388	b5b35f2d87dbdb4d521336f5d8918e70N.exe	31
PID 388 wrote to memory of 2348	388	b5b35f2d87dbdb4d521336f5d8918e70N.exe	31

C:\Users\Admin\AppData\Local\Temp\b5b35f2d87dbdb4d521336f5d8918e70N.exe
"C:\Users\Admin\AppData\Local\Temp\b5b35f2d87dbdb4d521336f5d8918e70N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:388
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2348

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

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Downloads

\ProgramData\Update\WwanSvc.exe

Filesize
134KB

MD5
151a8acb5e06f97312f447b47b1d1f71

SHA1
1533bb21bf7f5a6880a16e2e44207a103c1fc802

SHA256
a24eef8d396ab6de434ae9566aad996720594a9b092dfe656dfdc4e1d70825d2

SHA512
78d06bf1a382679be7950b5f0d9a2674da44d6ed5086c832825b0af71c405988b888c1b5bb654b5f70c9b6f9e28525fb082fd0b499e341b26550d8422492491a

Download Submit
memory/388-1-0x0000000000FC0000-0x0000000000FE8000-memory.dmp

Filesize
160KB

Download
memory/388-6-0x0000000000ED0000-0x0000000000EF8000-memory.dmp

Filesize
160KB

Download
memory/388-8-0x0000000000ED0000-0x0000000000EF8000-memory.dmp

Filesize
160KB

Download
memory/388-9-0x0000000000FC0000-0x0000000000FE8000-memory.dmp

Filesize
160KB

Download
memory/2348-7-0x0000000000ED0000-0x0000000000EF8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads