296becf74a7989ff8f63a1c572b8b01ff0a7e8472d4d59f31bf9167ed195b2f6

Resubmissions

16/02/2023, 08:23

230216-kacqhsgf66 7

14/02/2023, 13:14

230214-qg2acach6z 7

14/02/2023, 13:10

230214-qetsgsde72 7

Analysis

max time kernel
81s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2023, 13:10

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Report Analysis Logs

General

Target

67cf719a695ae1b769da9253901c26d8.exe
Size

5.1MB
MD5

67cf719a695ae1b769da9253901c26d8
SHA1

c148e7823e4bd98060f1b1d402aed070f99b5902
SHA256

296becf74a7989ff8f63a1c572b8b01ff0a7e8472d4d59f31bf9167ed195b2f6
SHA512

52a82db982f67f78558933c2ea5d2df8a88a20fdbedd71fcb0cd367b7c88b91a5388aec1bf5f305b1a0e8c610d489c93149599ee0fe3136d201e2522d50a5a48
SSDEEP

98304:MspkzuYnHDsB7V7UsE/8EI79WFynJih6/BG:M2Su7VSk7wQJc60

Score

7^/10

bootkit persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	67cf719a695ae1b769da9253901c26d8.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	67cf719a695ae1b769da9253901c26d8.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 45 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\360.cn	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1095226610"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6C552B12-AC71-11ED-B5DD-621DF61BAEF5} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31015038"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31015038"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1097099387"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000001dde435aba9a9d49a58cbfc3fe46698a000000000200000000001066000000010000200000007b10e7bdfa106ae1a2bd8a0e816f6d0adc33514ad1d9f93ebcc49decf6859b51000000000e80000000020000200000002221010f90e4bd9dca7e14359da1367fedad6582184c4095400c543052e3e9ae200000007579c17a0754c6dc226f27ac64a0706841dedf2dc99c889c2bae314f3a19a11e40000000793cf67e9eb1819c4b9e9aaa18179e6627661e78e63dcf1dd10eb7b6937cca3b63c9c3f84e205444e0913ceca281d322e13d567be9e4131d2511d3fe0eb3d34f	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\DOMStorage\360.cn	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1095226610"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31015038"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31015038"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1097099387"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000001dde435aba9a9d49a58cbfc3fe46698a00000000020000000000106600000001000020000000cebfae56962962929d95085c4fa6d225ae1b68cc1d2702ffcbaab3dc00a13d49000000000e8000000002000020000000d6373c1ff8ad42eca3039a1753bbb2ebe721e1fc96363163967c371280af4a04200000000353100ac00cf932c5ede6d731c5011ae5c3436e458ba103778fd3411df0c3d14000000044d3ccf0a78da3f91d653ac1c21869de086536f0acde5db92d5b9d9f134bdba672aa634ca07c99cc83cbc1b34395babe83fa970593d92737f3d38bad8dfc304c	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 4014d2587e40d901	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 7090bc587e40d901	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\360.cn\NumberOfSubdomains = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "383148841"	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2208	IEXPLORE.EXE
2208	IEXPLORE.EXE
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 2224	4936	67cf719a695ae1b769da9253901c26d8.exe	82
PID 4936 wrote to memory of 2224	4936	67cf719a695ae1b769da9253901c26d8.exe	82
PID 4936 wrote to memory of 2224	4936	67cf719a695ae1b769da9253901c26d8.exe	82
PID 2224 wrote to memory of 2208	2224	iexplore.exe	83
PID 2224 wrote to memory of 2208	2224	iexplore.exe	83
PID 2208 wrote to memory of 1696	2208	IEXPLORE.EXE	86
PID 2208 wrote to memory of 1696	2208	IEXPLORE.EXE	86
PID 2208 wrote to memory of 1696	2208	IEXPLORE.EXE	86

C:\Users\Admin\AppData\Local\Temp\67cf719a695ae1b769da9253901c26d8.exe
"C:\Users\Admin\AppData\Local\Temp\67cf719a695ae1b769da9253901c26d8.exe"
1⤵
- Checks computer location settings
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe" http://bbs.360.cn/thread-15667307-1-1.html
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://bbs.360.cn/thread-15667307-1-1.html
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2208
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2208 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1696

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
dd3762c0e3e884c5b1810e000d348bae

SHA1
a5c25fc58e5f1ab11c2eae9fb8fd640b35ea6e1f

SHA256
513f96d78d0b4e87981ab4764943bc623fbb5bd28afc86fa8c259c590aa42514

SHA512
df20a18964229e3101d4769cd8696e92cb9246e91538d6b0ecf66363e55f1466370613074cb98a28c00b478087d594f247591e1988ccbb25f5d331b4157cb245

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
9e4b7f50cd6ecfab8740bbe899bfbf26

SHA1
85dca3099fec8cc340b18060d7e1ff04adcf2c86

SHA256
16ab78516de862884b71924ab5709f91f90a2ae74b1a318e5f4479d580260737

SHA512
e87a9945afe40d5cd9c672dfc82e41fff320c2baff8182b25a4d789ce95862a8d1d9af31347096c4c647bec01d6e5aa24ac66b829d81ccdcacee28374d5bec3a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\3mhxqpl\imagestore.dat

Filesize
9KB

MD5
f9f0eb8d65112c3a3a85e3914ab7265e

SHA1
4c9a86a7c17b7ab9a4827e839a0c652ab89586ac

SHA256
f1497b9d3c7ca8a888a293f810a8bcc60dad9be4b8ed60325eda6cf8c8eb9b64

SHA512
d9a689ac0dad61ecd8e31121d7046d06a18ceff7771c0e199b8bb0e5f92db1f299aaec0fa9d588b4609c48fada6b7dc13d968964cbd732229c2e2d3b2fc74466

Download Submit
memory/4936-132-0x0000000000400000-0x0000000000B20000-memory.dmp

Filesize
7.1MB

Download
memory/4936-133-0x0000000000400000-0x0000000000B20000-memory.dmp

Filesize
7.1MB

Download