4f5e41254147d87d56bada78cc319c8a8eaeb1ae8ef7b2d31dfc645c05a07009

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 17:13

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General

Target

7f8351c90a9210d7426d79e7698589a4.exe
Size

250KB
MD5

7f8351c90a9210d7426d79e7698589a4
SHA1

fb9ff0c05b19ebcaf6cf2104e995624d591e0475
SHA256

4f5e41254147d87d56bada78cc319c8a8eaeb1ae8ef7b2d31dfc645c05a07009
SHA512

eaafe46293960db90faad9fad101b53c6eea89e85bf3f2c1aa0739ac411b0d52a7e37e682663aaa406ad5bb794d0de5ff3bed95a072bf5f2496172ec7c9bdc89
SSDEEP

6144:h1OgDPdkBAFZWjadD4s5EPlc7BdArSfIVP6qgpJM+tdaPjk:h1OgLdaOmc7vfIVP6fIjjk

Score

7^/10

adware discovery spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4520	50f965e8c0403.exe

Loads dropped DLL 3 IoCs

pid	Process
4520	50f965e8c0403.exe
4520	50f965e8c0403.exe
4520	50f965e8c0403.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4520-78-0x0000000074830000-0x000000007483A000-memory.dmp	upx

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops Chrome extension 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\abkjfblcgbkkephofbokpginkgpdjejo\1\manifest.json	50f965e8c0403.exe

Installs/modifies Browser Helper Object 2 TTPs 3 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\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\ = "Browse2save"	50f965e8c0403.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\NoExplorer = "1"	50f965e8c0403.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x0006000000023240-32.dat	nsis_installer_1
behavioral2/files/0x0006000000023240-32.dat	nsis_installer_2

Modifies registry class 45 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\ProgramData\\Browse2save\\50f965e8c043c.tlb"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\InProcServer32\ThreadingModel = "Apartment"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib\Version = "1.0"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ = "IIEPluginMain"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ProxyStubClsid32	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ProxyStubClsid32	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\ = "Browse2save"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ = "ILocalStorage"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ = "IIEPluginMain"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib\Version = "1.0"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib\Version = "1.0"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ProxyStubClsid32	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\ProgramData\\Browse2save"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}\ProxyStubClsid32	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\InProcServer32	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\ProgID	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\ProgID\ = "Browse2save.1"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{C66F0B7A-BD67-4982-AF71-C6CA6E7F016F}	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ = "ILocalStorage"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\TypeLib\Version = "1.0"	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}\InProcServer32\ = "C:\\ProgramData\\Browse2save\\50f965e8c043c.dll"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{31E3BC75-2A09-4CFF-9C92-8D0ED8D1DC0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	50f965e8c0403.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA}	50f965e8c0403.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4124 wrote to memory of 4520	4124	7f8351c90a9210d7426d79e7698589a4.exe	19
PID 4124 wrote to memory of 4520	4124	7f8351c90a9210d7426d79e7698589a4.exe	19
PID 4124 wrote to memory of 4520	4124	7f8351c90a9210d7426d79e7698589a4.exe	19

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID	50f965e8c0403.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{ECA72D66-25DC-17B3-4967-73F68EB21CFA} = "1"	50f965e8c0403.exe

C:\Users\Admin\AppData\Local\Temp\7f8351c90a9210d7426d79e7698589a4.exe
"C:\Users\Admin\AppData\Local\Temp\7f8351c90a9210d7426d79e7698589a4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4124
- C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\50f965e8c0403.exe
  .\50f965e8c0403.exe /s
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops Chrome extension
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - System policy modification
  PID:4520

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\[email protected]\bootstrap.js

Filesize
2KB

MD5
99c9b9c75ecfce366ca9149dffea2c22

SHA1
44aab102a9ca45409ee98119a360db5928a14381

SHA256
4584cc3e38935d408aee845e5fa39b420be9b7c8174c9dca022e589a4ca425d7

SHA512
c61c71d4335a2fed2af328db9cb6b2c16f628297f48a09bf2ed6e7d1d9c3680684c0529feb2a793dba0ab772e0c952dc53e8bca07a8e70585df4fcf058313473

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\[email protected]\chrome.manifest

Filesize
116B

MD5
8fa9d066b321644714aab77c3f3c22e6

SHA1
331c6cdd7f6ff934a0e46e978b387fc6089509db

SHA256
4d6ebf312e2f38617140245916cc3df8049e31649839d2f24f4bf18f198891ba

SHA512
0da769aceaf9d8b2c453e46e06796263ad8372af81e5290bc917f98a72c2cbdda2068d1126bd3d11cfc96ccdc41546246fb9f8b796cb014b84ff81faddc761e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\[email protected]\content\bg.js

Filesize
8KB

MD5
5f5ad132114cdff702c931decd0a521e

SHA1
8bb40aa5df9c64726fe7b3b4d574bf8d5d843ac1

SHA256
59c73edd4e4081046c16c434abb53845b60aa39fe07a7c5d6371296dcd4cfe75

SHA512
cce9f797e917fbdf9ee629bc1e137abda0e1b2bf35ff7bb61724f1917a24480841b116af7ff2ecf300e2b8f7d0456025b77987e7d12d9c8ddb1d8f4206f95cdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\[email protected]\content\zy.xul

Filesize
225B

MD5
175b824e80d93d0a1aa5c7182904aca5

SHA1
a341478429ed861d16a8f01be264f39709762cc2

SHA256
a8b31c5b4f74701ebc60ac215c71b735b33098c4da2fe8e7005ab7c306714020

SHA512
241d1a9e853c21912d1c6b00fef134d54c1269089fb2f8af800bb72a1dcb4bd12db70f3da9f1146ec103325d618bb8f344326861dcbacabb7988de5dba8f7b69

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\[email protected]\install.rdf

Filesize
718B

MD5
28574c791770130a63c5d64089640a32

SHA1
4d291d2a7b7eac1b0a899eefa70c5b1e88f24d82

SHA256
c6275e5d8e0c036ac5d297bbfcefb18be3dbbb2e024ba904c363a7680d4bcab2

SHA512
76f98aa692766e04c0766a55e81d22ca9c3b8c4103d8b3c1c7a27f32fce7969dda1d357d9305a573155b0acfc2993b4049d04ff0ec7dd62b0571b085d2bca10f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\50f965e8c0403.exe

Filesize
71KB

MD5
b78633fae8aaf5f7e99e9c736f44f9c5

SHA1
26fc60e29c459891ac0909470ac6c61a1eca1544

SHA256
d205693516dbaf34cfbd216e825190de4de1412e861bc9cb30ce863907b30d22

SHA512
3885b609269b26918ccfcd9069181168c12f4271b6bdfcc51afe176b2dd242d4c0953ac1a4ddaf25abcfaf28a0b694a6269d96ae39bb7b2db2f0140d2d60cd43

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS55A2.tmp\settings.ini

Filesize
6KB

MD5
b3e6519d61c307eef163ef8090425de7

SHA1
5098840374b155305fa14377a6ee2760f7f9e3f9

SHA256
48bba7eeac214157d4a381e205169a33e28e478fc4d92795093bb0936e5253ea

SHA512
46408a5d21f95aa294f9481ae915775b1c41d2ad43a7fe0e365cd7b9d90085fe88ac88e4e33cac79f141531c9a7fd3ccbd82b2b47e3e9cae2b47899bd6c7259d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsw564F.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
memory/4520-78-0x0000000074830000-0x000000007483A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads