9e771d397008052c95fae64714155e918d5d9852d068529b260a36c943df7c85

Analysis

max time kernel
102s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 07:03

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General

Target

a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe
Size

135KB
MD5

a1fb1b1f841bf841cfe0b027ff6f6bc0
SHA1

20d6d228328b67ec4d6d924b3b8102a3e803f0e0
SHA256

9e771d397008052c95fae64714155e918d5d9852d068529b260a36c943df7c85
SHA512

62e37f0c34699845218f835b0953dc1475f8d5ce4782da74f9739dbf8570cdfe1658bd6061c81ed7efdb5aec3b277f9dad7321a88685f4587233246247944f00
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Qb:riAyLN9aa+9U2rW1ip6pr2At7NZuQb

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2780	WwanSvc.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/780-0-0x0000000000790000-0x00000000007B8000-memory.dmp	upx
behavioral2/files/0x00080000000234bb-3.dat	upx
behavioral2/memory/2780-4-0x00000000000E0000-0x0000000000108000-memory.dmp	upx
behavioral2/memory/780-5-0x0000000000790000-0x00000000007B8000-memory.dmp	upx
behavioral2/memory/2780-7-0x00000000000E0000-0x0000000000108000-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"	a1fb1b1f841bf841cfe0b027ff6f6bc0N.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	a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 2780	780	a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe	84
PID 780 wrote to memory of 2780	780	a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe	84
PID 780 wrote to memory of 2780	780	a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe	84

C:\Users\Admin\AppData\Local\Temp\a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe
"C:\Users\Admin\AppData\Local\Temp\a1fb1b1f841bf841cfe0b027ff6f6bc0N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:780
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2780

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
135KB

MD5
9be2ce6a0e385c46a72625361eed02fb

SHA1
36b4c896f65643f9f60e75dc8ce84f9f68c12869

SHA256
5accbc148d2196245279af1e5bd579247cadbcdbdec8ab35c3f999120bd13c6b

SHA512
2643a2b3166801c87d1d312fa6804fdaba6a0da0f932a7cfbe7212709d980e42bcc6e565d16850cd02662ff4313bdfcc33f93debaa7da9697dd05da018125160

Download Submit
memory/780-0-0x0000000000790000-0x00000000007B8000-memory.dmp

Filesize
160KB

Download
memory/780-5-0x0000000000790000-0x00000000007B8000-memory.dmp

Filesize
160KB

Download
memory/2780-4-0x00000000000E0000-0x0000000000108000-memory.dmp

Filesize
160KB

Download
memory/2780-7-0x00000000000E0000-0x0000000000108000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads