c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

Analysis

max time kernel
148s
max time network
159s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 12:10

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General

Target

c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Size

1.6MB
MD5

c5845949f95c5b713b9a76d5211c835f
SHA1

71c49204f8666bd2d54daf8bd0eabe0a4b145de7
SHA256

c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
SHA512

35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad
SSDEEP

24576:W+zHdFeYR0iGkwFgc6BQSmtl0UrQbchemdY2GDMCbItNWf:WgW0AYySY0A3dYDA1tNWf

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1260	copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

Loads dropped DLL 1 IoCs

pid	Process
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\windows\CurrentVersion\Run	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TimeHint = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.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 35 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000002957eedd8fa5ce41a564742adecf8381000000000200000000001066000000010000200000002903115196180bd2571899e97fb7623d224184a2bf274ecfff61f343ae08c6e0000000000e800000000200002000000076f4f97dacb63dcf3365948ee1dbd67267a213b4ed9fc84004dea87df2a45996200000008be93af2fb2273cf48fad10d419079b51b142b660a2204784c1d6920b072772340000000ce0d854dfd86edf19c00273ac706f4b33beb7fc347a79ecb2f457db3df6a75678af731faf20056072a9b2a0b996fa4d985da7eaed3d287c0bdeb6fbfe13570a5	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E91E36E1-6F00-11ED-99B1-EA25B6F29539} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376393502"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 900afec10d03d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1812	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1260	copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1260	copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
1812	iexplore.exe
1812	iexplore.exe
756	IEXPLORE.EXE
756	IEXPLORE.EXE
756	IEXPLORE.EXE
756	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 1260	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	27
PID 1436 wrote to memory of 1260	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	27
PID 1436 wrote to memory of 1260	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	27
PID 1436 wrote to memory of 1260	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	27
PID 1436 wrote to memory of 1944	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	31
PID 1436 wrote to memory of 1944	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	31
PID 1436 wrote to memory of 1944	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	31
PID 1436 wrote to memory of 1944	1436	c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe	31
PID 1824 wrote to memory of 1812	1824	explorer.exe	33
PID 1824 wrote to memory of 1812	1824	explorer.exe	33
PID 1824 wrote to memory of 1812	1824	explorer.exe	33
PID 1812 wrote to memory of 756	1812	iexplore.exe	35
PID 1812 wrote to memory of 756	1812	iexplore.exe	35
PID 1812 wrote to memory of 756	1812	iexplore.exe	35
PID 1812 wrote to memory of 756	1812	iexplore.exe	35

C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
"C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
  "C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe" C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1260
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\System32\explorer.exe" http://jc.110160.com/ad.htm
  2⤵
  PID:1944

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://jc.110160.com/ad.htm
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1812 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

Filesize
1.6MB

MD5
c5845949f95c5b713b9a76d5211c835f

SHA1
71c49204f8666bd2d54daf8bd0eabe0a4b145de7

SHA256
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

SHA512
35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\TL6SPMKS.txt

Filesize
603B

MD5
a7a1efd1d9b0b46a169f126aa35e821e

SHA1
bfa575f96730c9a554328e614d04a63233d209a1

SHA256
53ad6db844137d1e62cac07f38f51de612757214dc744697bb2058b9e14b706d

SHA512
a4fa003af37fbe7deb9db8c7d27bb8f9cfc8b66c146a4cdc20dc052ed3a4e11f92f216bbaf2fa84e06e8df91ba9089ed41e9218a14aed2ecd9f5a37da1303d53

Download Submit
\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

Filesize
1.6MB

MD5
c5845949f95c5b713b9a76d5211c835f

SHA1
71c49204f8666bd2d54daf8bd0eabe0a4b145de7

SHA256
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

SHA512
35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad

Download Submit
memory/1436-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1824-62-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download
memory/1944-61-0x0000000071361000-0x0000000071363000-memory.dmp

Filesize
8KB

Download