31a8efcc0e430b3709620a3f039383456ead0d9138670b5b637108d728038d0d

Analysis

max time kernel
99s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 07:09

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General

Target

9b428e692ec4559e8e9cd0389eca1c60N.exe
Size

134KB
MD5

9b428e692ec4559e8e9cd0389eca1c60
SHA1

34f0a5b7a41420eb1eaa2a82ddf182c293de4379
SHA256

31a8efcc0e430b3709620a3f039383456ead0d9138670b5b637108d728038d0d
SHA512

3022e3ebf7c9d442338217979da0b8ebbc68c6e2b5fffb07d38c98d103178fd2c892f5fff2948dffd2b02f86fdb0bc8af772c1f629334fc0764d3abe822e47ea
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Qc:riAyLN9aa+9U2rW1ip6pr2At7NZuQc

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
980	WwanSvc.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4652-0-0x0000000000EF0000-0x0000000000F18000-memory.dmp	upx
behavioral2/files/0x0009000000023438-3.dat	upx
behavioral2/memory/980-6-0x0000000000410000-0x0000000000438000-memory.dmp	upx
behavioral2/memory/4652-4-0x0000000000EF0000-0x0000000000F18000-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"	9b428e692ec4559e8e9cd0389eca1c60N.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	9b428e692ec4559e8e9cd0389eca1c60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 980	4652	9b428e692ec4559e8e9cd0389eca1c60N.exe	83
PID 4652 wrote to memory of 980	4652	9b428e692ec4559e8e9cd0389eca1c60N.exe	83
PID 4652 wrote to memory of 980	4652	9b428e692ec4559e8e9cd0389eca1c60N.exe	83

C:\Users\Admin\AppData\Local\Temp\9b428e692ec4559e8e9cd0389eca1c60N.exe
"C:\Users\Admin\AppData\Local\Temp\9b428e692ec4559e8e9cd0389eca1c60N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4652
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:980

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

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Downloads

C:\ProgramData\Update\WwanSvc.exe

Filesize
134KB

MD5
a6901d37d4bc5585ea49148413cc630e

SHA1
329a41e62f23c53802cf40cb0e788b51a95a2f6d

SHA256
49602cd5c4af466caca03746badfb3583a2cdd70874d1c0313e727f9ccd80b61

SHA512
4c3e3674695140dfbd0e806ed77bfaa8966a85d4837e58df28d851dabcd6608367e4c0610bcf27ce14730b5b1aaa5ee5d8e0fb4d4f6ff9798618f0bb272d61ee

Download Submit
memory/980-6-0x0000000000410000-0x0000000000438000-memory.dmp

Filesize
160KB

Download
memory/4652-0-0x0000000000EF0000-0x0000000000F18000-memory.dmp

Filesize
160KB

Download
memory/4652-4-0x0000000000EF0000-0x0000000000F18000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads