b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12

Analysis

max time kernel
133s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 02:03

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General

Target
b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe
Size 134KB
Sample240530-cgy84abe96
SHA256 b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12
MD5 42dd58be6680db47a911d55ad3280142
SHA1 97f4846e15e75e1e46065a53f9ac60b5d06dc219
SHA512 8a4c132b6dfb920c7fb8d82a4fb491e65f8970d78b68462346ec704da39640ec2907fa45cf940051213726a7ff51f625fa6d6889778a8b845c76ba4227aadfaa
SSDEEP 1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QI:riAyLN9aa+9U2rW1ip6pr2At7NZuQI
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/1416-0-0x0000000000DC0000-0x0000000000DE8000-memory.dmp	UPX
behavioral2/files/0x00090000000233ed-3.dat	UPX
behavioral2/memory/620-6-0x0000000000930000-0x0000000000958000-memory.dmp	UPX
behavioral2/memory/1416-5-0x0000000000DC0000-0x0000000000DE8000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
620	WwanSvc.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1416-0-0x0000000000DC0000-0x0000000000DE8000-memory.dmp	upx
behavioral2/files/0x00090000000233ed-3.dat	upx
behavioral2/memory/620-6-0x0000000000930000-0x0000000000958000-memory.dmp	upx
behavioral2/memory/1416-5-0x0000000000DC0000-0x0000000000DE8000-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"	b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 620	1416	b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe	83
PID 1416 wrote to memory of 620	1416	b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe	83
PID 1416 wrote to memory of 620	1416	b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe	83

C:\Users\Admin\AppData\Local\Temp\b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe
"C:\Users\Admin\AppData\Local\Temp\b5d23fda8d1dd20490ce073a76609943bcadb8b89c81fbf09289627190492b12.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1416
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  PID:620

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

WwanSvc.exe

Path C:\ProgramData\Update\WwanSvc.exe
Size 134KB
SHA256 16057be9b318bbed45b64434b5d0ec3eb80bf2a24d912617aa01659498e90b78
MD5 06b37e3a5b9cd7fc2650fb8b04cade9a
SHA1 3510a2fd3886cfa62f4296bc1c0796a6bb655eb1
SHA512 93e70bca598cefa6af7e00291ef0d2f4e79e3f1d2f2bb27ee8ab2656fd31ac323430ad73d52f144f51a2c523dd704f63462359732833245c1a2d62d4f7333c64
SSDEEP 1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QN:riAyLN9aa+9U2rW1ip6pr2At7NZuQN
MD5 SHA1 SHA512 SSDEEP

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memory/620-6-0x0000000000930000-0x0000000000958000-memory.dmp

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memory/1416-0-0x0000000000DC0000-0x0000000000DE8000-memory.dmp

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memory/1416-5-0x0000000000DC0000-0x0000000000DE8000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads