c1a4493e45d1e8ebb3e0c04edf1819b775603ecaaddbaf0458599006e3a9e291

Analysis

max time kernel
103s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 03:13

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General

Target

621e2ad93526c2e77898744517944400N.exe
Size

134KB
MD5

621e2ad93526c2e77898744517944400
SHA1

73c018b3802f1c409a0e0c69275a2c7fa6068624
SHA256

c1a4493e45d1e8ebb3e0c04edf1819b775603ecaaddbaf0458599006e3a9e291
SHA512

aa242d1c312f5e25f786ed19401a605f4bf0374737086a919bb745af0921f35b2acc60ffb373459e0233df1bdfb40f19cd4d7733ed1f00ac4edcd9d8fb6b39dc
SSDEEP

1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QN:riAyLN9aa+9U2rW1ip6pr2At7NZuQN

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2720	WwanSvc.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1496-0-0x0000000000700000-0x0000000000728000-memory.dmp	upx
behavioral2/files/0x00080000000234a9-3.dat	upx
behavioral2/memory/1496-5-0x0000000000700000-0x0000000000728000-memory.dmp	upx
behavioral2/memory/2720-6-0x0000000000770000-0x0000000000798000-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"	621e2ad93526c2e77898744517944400N.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	621e2ad93526c2e77898744517944400N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WwanSvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2720	1496	621e2ad93526c2e77898744517944400N.exe	84
PID 1496 wrote to memory of 2720	1496	621e2ad93526c2e77898744517944400N.exe	84
PID 1496 wrote to memory of 2720	1496	621e2ad93526c2e77898744517944400N.exe	84

C:\Users\Admin\AppData\Local\Temp\621e2ad93526c2e77898744517944400N.exe
"C:\Users\Admin\AppData\Local\Temp\621e2ad93526c2e77898744517944400N.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1496
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2720

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
8e4339186eee5a3511a0391a6a696b46

SHA1
731bdaa9b40d4a090a9b19333afd7ce99db39f85

SHA256
27e529e1569ec04b1cde2a90dcf06dc234090afb7896acb4bde6cc4c2223d1a2

SHA512
a58aaabeb20a81028715486f81d38cfa49be7c75998fed6afa9deac6e1b18bf5d8a9d7b5f36c63f04be16cbb75620d3a7b239b7b08aa33a247a26e2fd791fba3

Download Submit
memory/1496-0-0x0000000000700000-0x0000000000728000-memory.dmp

Filesize
160KB

Download
memory/1496-5-0x0000000000700000-0x0000000000728000-memory.dmp

Filesize
160KB

Download
memory/2720-6-0x0000000000770000-0x0000000000798000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads