27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1

Analysis

max time kernel
148s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 04:25

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General

Target
27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe
Size 134KB
Sample240610-e16tdsca81
SHA256 27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1
MD5 990f22831d926266ea60fc313f9534a1
SHA1 5e2687b3c46aac42fca92a7ba4d009f12b86e1a9
SHA512 12af81fb69bd167848cd7f8bb5a71b2076f8e2237d3c3981c76cea3a3e4dd65475f166af66d97c78eaf934997f3059b9abe5b1f053f2c2c3db28fde1c415f09c
SSDEEP 1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Qr:riAyLN9aa+9U2rW1ip6pr2At7NZuQr
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/3644-0-0x0000000000AE0000-0x0000000000B08000-memory.dmp	UPX
behavioral2/files/0x00090000000233ed-3.dat	UPX
behavioral2/memory/780-6-0x0000000000C10000-0x0000000000C38000-memory.dmp	UPX
behavioral2/memory/3644-5-0x0000000000AE0000-0x0000000000B08000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
780	WwanSvc.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3644-0-0x0000000000AE0000-0x0000000000B08000-memory.dmp	upx
behavioral2/files/0x00090000000233ed-3.dat	upx
behavioral2/memory/780-6-0x0000000000C10000-0x0000000000C38000-memory.dmp	upx
behavioral2/memory/3644-5-0x0000000000AE0000-0x0000000000B08000-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"	27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 780	3644	27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe	81
PID 3644 wrote to memory of 780	3644	27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe	81
PID 3644 wrote to memory of 780	3644	27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe	81

C:\Users\Admin\AppData\Local\Temp\27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe
"C:\Users\Admin\AppData\Local\Temp\27c3c3332858f987703c95ebe6ee05929acb306f4358afab4432230a497dbeb1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3644
- C:\ProgramData\Update\WwanSvc.exe
  "C:\ProgramData\Update\WwanSvc.exe" /run
  2⤵
  - Executes dropped EXE
  PID:780

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 4fb66f6260a73dbdc417a52ef9dd000aecd16b02e1c1f6cf8741ff2b4a8f1385
MD5 6044f64411e0ac9798ff8a2309b796af
SHA1 d5fa187d428af0e096faf6e421ab8d04f2ef8d8d
SHA512 579b6d9249d63b954eb015f6a68494ce241434f7e37c3f2ca23e4037ae0a6d548c936e671c6776028c37e264c62c472659f9fb47853880a718b328c96e7d81b1
SSDEEP 1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38Qp:riAyLN9aa+9U2rW1ip6pr2At7NZuQp
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/780-6-0x0000000000C10000-0x0000000000C38000-memory.dmp

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memory/3644-0-0x0000000000AE0000-0x0000000000B08000-memory.dmp

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memory/3644-5-0x0000000000AE0000-0x0000000000B08000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads