3d520333c062cd604b56557d35621f619b4d977db508ad341dd58787f1de26c5

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 23:58

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General

Target

1b3d6761c4d5a29ba06662bcfb948f79.exe
Size

153KB
MD5

1b3d6761c4d5a29ba06662bcfb948f79
SHA1

353c0da8a89592377c5e3aed876360de3a5e23df
SHA256

3d520333c062cd604b56557d35621f619b4d977db508ad341dd58787f1de26c5
SHA512

d3375467b7cafe0e3da6dde7f24b87c8c744720b0ec9c6ad8ad98a4a2ca57a037ec8d866988135504ff14ad1b603ec0be0b24a9875a7d0abf83f585ec102ba73
SSDEEP

3072:/pAn63wDSVI+XDdqAztqlpCL1CrsJFHEKQ/wyYHKuizxaZD1kZO+qJc+C:/pAnLDSVB5ZqlpCL1CekDwFq3zihcO+1

Score

7^/10

adware stealer upx

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2348	1b3d6761c4d5a29ba06662bcfb948f79.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2348-8-0x0000000000530000-0x0000000000570000-memory.dmp	upx
behavioral1/memory/2348-7-0x0000000000530000-0x0000000000570000-memory.dmp	upx
behavioral1/memory/2348-6-0x0000000000530000-0x0000000000570000-memory.dmp	upx
behavioral1/memory/2348-3-0x0000000000530000-0x0000000000570000-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\{236CCD34-09CA-4D85-A384-13FA351A45B2}	1b3d6761c4d5a29ba06662bcfb948f79.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\api-ms-win-core-libraryloader-l1-1-.dll	1b3d6761c4d5a29ba06662bcfb948f79.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main	1b3d6761c4d5a29ba06662bcfb948f79.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Main\TabProcGrowth = "1"	1b3d6761c4d5a29ba06662bcfb948f79.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{236CCD34-09CA-4D85-A384-13FA351A45B2}	1b3d6761c4d5a29ba06662bcfb948f79.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{236CCD34-09CA-4D85-A384-13FA351A45B2}\InprocServer32\ = "C:\\Windows\\SysWow64\\api-ms-win-core-libraryloader-l1-1-.dll"	1b3d6761c4d5a29ba06662bcfb948f79.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{236CCD34-09CA-4D85-A384-13FA351A45B2}\InprocServer32\ThreadingModel = "apartment"	1b3d6761c4d5a29ba06662bcfb948f79.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{236CCD34-09CA-4D85-A384-13FA351A45B2}\InprocServer32	1b3d6761c4d5a29ba06662bcfb948f79.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	1b3d6761c4d5a29ba06662bcfb948f79.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	1b3d6761c4d5a29ba06662bcfb948f79.exe

C:\Users\Admin\AppData\Local\Temp\1b3d6761c4d5a29ba06662bcfb948f79.exe
"C:\Users\Admin\AppData\Local\Temp\1b3d6761c4d5a29ba06662bcfb948f79.exe"
1⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies Internet Explorer settings
- Modifies registry class
PID:2348

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

\Windows\SysWOW64\api-ms-win-core-libraryloader-l1-1-.dll

Filesize
26KB

MD5
c8eadbb7d5943c70e75fc77684615db1

SHA1
cdcef3adb908790fe6eea3f6cbcddb0eab38db46

SHA256
16461c50cb6e573ca3a74522c98b20a2a8fcb3965069dc26a6895fdeb7d19669

SHA512
108dc4ace586dc550777e6945a078ff33ec1d019079e8ec4b1c5547f99f09bbdecb23b28d4af3790d30d9cd68de33ed071c1c30e28fc346f0a9bd9caa85e74ed

Download Submit
memory/2348-8-0x0000000000530000-0x0000000000570000-memory.dmp

Filesize
256KB

Download
memory/2348-7-0x0000000000530000-0x0000000000570000-memory.dmp

Filesize
256KB

Download
memory/2348-6-0x0000000000530000-0x0000000000570000-memory.dmp

Filesize
256KB

Download
memory/2348-3-0x0000000000530000-0x0000000000570000-memory.dmp

Filesize
256KB

Download
memory/2348-1-0x00000000003A0000-0x00000000003C4000-memory.dmp

Filesize
144KB

Download
memory/2348-10-0x00000000003A0000-0x00000000003C4000-memory.dmp

Filesize
144KB

Download
memory/2348-9-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads