d56c7f02875c741b23b9c45448e9910d972f14da0be7faaa84339fa6a0cde6f6

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-12-2023 09:59

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General

Target

6592f54c24f1a54cd7c4b746af2334e7.exe
Size

33KB
MD5

6592f54c24f1a54cd7c4b746af2334e7
SHA1

8969ee224c50ac868ec4473096691eeea61862b5
SHA256

d56c7f02875c741b23b9c45448e9910d972f14da0be7faaa84339fa6a0cde6f6
SHA512

04817c834b0f65dfeab038cba0f9e098dc4720850c254fe309d17db7aedd9002ca53b6e35ab8d74ff1b7c56979de2034be584778f9ca0bb4afc130fd868213a8
SSDEEP

768:SUi8TihEzr2RajA7c0S80YplZFHPZzFBjsrzVCRi:SNvSGgj+ctiPHlzMzz

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2648-0-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2648-1-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2940-2-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/2940-3-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 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\{9963387B-212E-4643-B207-82DAEA0E713D}	6592f54c24f1a54cd7c4b746af2334e7.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp	6592f54c24f1a54cd7c4b746af2334e7.exe
File created	C:\Program Files\Internet Explorer\PLUGINS\Wn_Sys8x.Sys	6592f54c24f1a54cd7c4b746af2334e7.exe
File created	C:\Program Files\Internet Explorer\PLUGINS\Sy_Win7k.Jmp	6592f54c24f1a54cd7c4b746af2334e7.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32	6592f54c24f1a54cd7c4b746af2334e7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ = "C:\\Program Files\\Internet Explorer\\PLUGINS\\Wn_Sys8x.Sys"	6592f54c24f1a54cd7c4b746af2334e7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\InProcServer32\ThreadingModel = "Apartment"	6592f54c24f1a54cd7c4b746af2334e7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}	6592f54c24f1a54cd7c4b746af2334e7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9963387B-212E-4643-B207-82DAEA0E713D}\	6592f54c24f1a54cd7c4b746af2334e7.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2940	2648	6592f54c24f1a54cd7c4b746af2334e7.exe	28
PID 2648 wrote to memory of 2940	2648	6592f54c24f1a54cd7c4b746af2334e7.exe	28
PID 2648 wrote to memory of 2940	2648	6592f54c24f1a54cd7c4b746af2334e7.exe	28
PID 2648 wrote to memory of 2940	2648	6592f54c24f1a54cd7c4b746af2334e7.exe	28

C:\Users\Admin\AppData\Local\Temp\6592f54c24f1a54cd7c4b746af2334e7.exe
"C:\Users\Admin\AppData\Local\Temp\6592f54c24f1a54cd7c4b746af2334e7.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\6592f54c24f1a54cd7c4b746af2334e7.exe
  "C:\Users\Admin\AppData\Local\Temp\6592f54c24f1a54cd7c4b746af2334e7.exe" Z
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Modifies registry class
  PID:2940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2648-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2648-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2940-2-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2940-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download