75fdfab7d4c629aa0a57392c89ffbee3d9502ad6204622e2247d564345b3b7ad

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 07:28

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General

Target

5c8c735108b6771bc6be3f3f13b6d24c.exe
Size

51KB
MD5

5c8c735108b6771bc6be3f3f13b6d24c
SHA1

e5dc207235f98c83b48060dfca021b6b3c36aa37
SHA256

75fdfab7d4c629aa0a57392c89ffbee3d9502ad6204622e2247d564345b3b7ad
SHA512

94f6445cbcfa0e05029456911fb2ae9bc9161810a1c126b5ba7d852339e0f84a78118bf1a48583d76377bf052609f6bd48fcfc3fef5a7dfea934be447bb3b16f
SSDEEP

768:Hw+F8XmROl6xrczvQ45jtNZ4UTpuklKfwpTWXqYSsPMNynD+KCgdNDb/Xaln:Hw+F8XmC6xrQxTkWTSKsbX/XA

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\userinit.exe,c:\\WINDOWS\\5c8c735108b6771bc6be3f3f13b6d24c.exe"	5c8c735108b6771bc6be3f3f13b6d24c.exe

Enumerates connected drives 3 TTPs 7 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\h:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\i:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\k:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\l:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\m:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\e:	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened (read-only)	\??\g:	5c8c735108b6771bc6be3f3f13b6d24c.exe

Drops autorun.inf file 1 TTPs 16 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	\??\i:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\m:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\m:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\f:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\i:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\k:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\f:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\g:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\g:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\l:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\e:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\e:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\k:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\l:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\h:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\h:\Autorun.inf	5c8c735108b6771bc6be3f3f13b6d24c.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\WINDOWS\concmd.dll	5c8c735108b6771bc6be3f3f13b6d24c.exe
File created	\??\c:\WINDOWS\5c8c735108b6771bc6be3f3f13b6d24c.exe	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\c:\WINDOWS\5c8c735108b6771bc6be3f3f13b6d24c.exe	5c8c735108b6771bc6be3f3f13b6d24c.exe
File opened for modification	\??\c:\WINDOWS\netcom.dll	5c8c735108b6771bc6be3f3f13b6d24c.exe

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000025ba558cff15364f83b59eef6d4e53a4000000000200000000001066000000010000200000009dd7fd7a5a9c82096c45a3039fbb3d3093c12a34bc773667ed796873a096f7fd000000000e8000000002000020000000cced527a4a08e88c27fc066c8d0b14d698909e62d28bd6c99517ba5b3f3461192000000037f19099d197e5acee938135437618d2d841ceed12274929c9469d7c90ad72414000000033d1109f1a775c4698806ca63f592555929099dd03af44cbdbf86555d052d2b78c7f1a7b651cf96857fdcdbbb68d00e09c8fc6fcd52ffabdce2a1d5acf9a4983	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5B09504D-A4B0-11EE-9963-CE055DF4442A} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000025ba558cff15364f83b59eef6d4e53a40000000002000000000010660000000100002000000068a858a806095ea5d172dac7841215373f34723d1c531c6eea26f1accea433cf000000000e800000000200002000000083fa9f7708de1ce0d50758cef2de631d3f8787f53d8b4192ef4a7653db7a50b020000000bdcee74b64b229c80c6add4f049f545b1c7a4164b312a72e91b4a9b7da687f6b4000000034e2511abeb69306be3e124f8e201b4bcd4405d2f0fa30f143251dfcd4735f806293c89511ee1554e46ed5cc97f36c8f793d05b724b34cd44221e7d9d1a09882	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 5032b230bd38da01	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078589"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "847462678"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "847931668"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 5014b730bd38da01	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410443759"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078589"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "847931668"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "847462678"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078589"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078589"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2096	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2096	IEXPLORE.EXE
2096	IEXPLORE.EXE
4996	IEXPLORE.EXE
4996	IEXPLORE.EXE
4996	IEXPLORE.EXE
4996	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 2096	3716	5c8c735108b6771bc6be3f3f13b6d24c.exe	89
PID 3716 wrote to memory of 2096	3716	5c8c735108b6771bc6be3f3f13b6d24c.exe	89
PID 2096 wrote to memory of 4996	2096	IEXPLORE.EXE	90
PID 2096 wrote to memory of 4996	2096	IEXPLORE.EXE	90
PID 2096 wrote to memory of 4996	2096	IEXPLORE.EXE	90

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveTypeAutoRun = 95000000	5c8c735108b6771bc6be3f3f13b6d24c.exe

C:\Users\Admin\AppData\Local\Temp\5c8c735108b6771bc6be3f3f13b6d24c.exe
"C:\Users\Admin\AppData\Local\Temp\5c8c735108b6771bc6be3f3f13b6d24c.exe"
1⤵
- Modifies WinLogon for persistence
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3716
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://mimi.48du.com/power.asp?myid=6006648101811
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2096
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2096 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
471B

MD5
e8dc8277914241e3ca6e1ae951dff064

SHA1
b37790b78dd0e2163186e9e4465688b1f38f0b6e

SHA256
6d779af1307e63eb593cf176e8e4d1dbe8a0b1b892b48b4d624c5262b3a4ff3c

SHA512
719e87c365d474629d33679b588358022f304f29e5b062bfa4641238b3dd47b188ee15a574601e99eaf8ad37ae844db4f160b8be6009c732b51db9cdb6d450b9

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

Filesize
404B

MD5
154d36e313c96bd0093eede28397e5c2

SHA1
6d26e27f431ac6b06f73f4b843aa304e2698e99a

SHA256
a79c32a2988e4aa50f06ed4eb657eb71366ced34efba4f38471861060a2ce390

SHA512
5e5810cb9bb6800f521412e3878824e4afa591762b8dc8b1ab1d14b9f325c93c5acf9c6899e7d0b90cd9a3e680d0795ab3d2cf41d34899fcea314816e5ff82fe

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verD476.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0A013ETK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/3716-0-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/3716-1-0x0000000000590000-0x0000000000592000-memory.dmp

Filesize
8KB

Download
memory/3716-8-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads