71f2090aa6bf7d3a01ee849d171ea53fdc78e04e128eeee81792929290bce062

General

Target

131cb4bac07a6c0bb62b99c3436e9ed7.exe
Size

1003KB
MD5

131cb4bac07a6c0bb62b99c3436e9ed7
SHA1

b6c462824f587a84c42552f62e47d9c8c245d738
SHA256

71f2090aa6bf7d3a01ee849d171ea53fdc78e04e128eeee81792929290bce062
SHA512

00664bc86960ba26e3034e3313951f836b0eda855e49c77e3aee868f792335e1df2814caac3a11aae54024d1dfd3d65f73f63b850534f13ce07ecec474040952
SSDEEP

12288:Iv/HDkCCLbxmUwRT+k2+qyhhvIm/2YoSHUabaiVqJqlTwkzp/h3GX:kgVbxmBRL2lIvLkanVd/tu

Score

7^/10

adware stealer upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000002321f-7.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
376	131cb4bac07a6c0bb62b99c3436e9ed7.exe
376	131cb4bac07a6c0bb62b99c3436e9ed7.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/376-0-0x0000000000400000-0x00000000004FC000-memory.dmp	upx
behavioral2/files/0x000600000002321f-7.dat	upx
behavioral2/memory/376-10-0x0000000003F10000-0x0000000003FE0000-memory.dmp	upx
behavioral2/memory/376-11-0x0000000003F10000-0x0000000003FE0000-memory.dmp	upx
behavioral2/memory/376-14-0x0000000000400000-0x00000000004FC000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}	131cb4bac07a6c0bb62b99c3436e9ed7.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\myspace~1.dll	131cb4bac07a6c0bb62b99c3436e9ed7.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Internet Explorer\SearchScopes	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key created	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}	131cb4bac07a6c0bb62b99c3436e9ed7.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}\ = "Myspace cn"	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}\InprocServer32	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}\InprocServer32\ = "C:\\Windows\\SysWow64\\myspace~1.dll"	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}\InprocServer32\ThreadingModel = "Apartment"	131cb4bac07a6c0bb62b99c3436e9ed7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BFC20B75-2264-48E0-9D9E-94C0A6A2D360}	131cb4bac07a6c0bb62b99c3436e9ed7.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 3800	376	131cb4bac07a6c0bb62b99c3436e9ed7.exe	91
PID 376 wrote to memory of 3800	376	131cb4bac07a6c0bb62b99c3436e9ed7.exe	91
PID 376 wrote to memory of 3800	376	131cb4bac07a6c0bb62b99c3436e9ed7.exe	91

C:\Users\Admin\AppData\Local\Temp\131cb4bac07a6c0bb62b99c3436e9ed7.exe
"C:\Users\Admin\AppData\Local\Temp\131cb4bac07a6c0bb62b99c3436e9ed7.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\_delme.bat
  2⤵
  PID:3800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_delme.bat

Filesize
184B

MD5
e76c3d6924ed4d86887170463d4f3f41

SHA1
523929a190aadbde21368a9cd9c3f577190ff72a

SHA256
233522b8440c206520cf2cf27eee5fc83c90f42559eea0c4349a15af55191110

SHA512
b6f8463aaece12be2d9261938ba2de9d4d2421cc58467cfdde8eb1355f52b2aebed8375a7a828cfd9eb04bcf373d193612322decbf989236354cd52d026a99bd

Download Submit
C:\Windows\SysWOW64\myspace~1.dll

Filesize
335KB

MD5
dc56093798a32fbdeef4dd083fbefd7c

SHA1
fa00cbf59110184c042cff4138886ae3b91fefe9

SHA256
03dd8ba935931ea50b147d937609ee6cc585ab1786620a4532e3992bfae5da14

SHA512
83933edab4034a9398b6285f95a004b216f04ca1c828d1994d5d54ffc9db7e7b66d7edf016dd8eac6e585bf08e8e46448f575e7fefb31b68db0c9f2f5ad951f1

Download Submit
memory/376-0-0x0000000000400000-0x00000000004FC000-memory.dmp

Filesize
1008KB

Download
memory/376-1-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

Filesize
4KB

Download
memory/376-10-0x0000000003F10000-0x0000000003FE0000-memory.dmp

Filesize
832KB

Download
memory/376-11-0x0000000003F10000-0x0000000003FE0000-memory.dmp

Filesize
832KB

Download
memory/376-14-0x0000000000400000-0x00000000004FC000-memory.dmp

Filesize
1008KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads