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Analysis
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max time kernel
269s -
max time network
303s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2022, 12:10
Static task
static1
Behavioral task
behavioral1
Sample
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Resource
win10v2004-20221111-en
General
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Target
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
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Size
1.6MB
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MD5
c5845949f95c5b713b9a76d5211c835f
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SHA1
71c49204f8666bd2d54daf8bd0eabe0a4b145de7
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SHA256
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
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SHA512
35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad
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SSDEEP
24576:W+zHdFeYR0iGkwFgc6BQSmtl0UrQbchemdY2GDMCbItNWf:WgW0AYySY0A3dYDA1tNWf
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2400 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Adds Run key to start application 2 TTPs 2 IoCs
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.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2400 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 2400 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3832 wrote to memory of 2400 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 80 PID 3832 wrote to memory of 2400 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 80 PID 3832 wrote to memory of 2400 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 80 PID 3832 wrote to memory of 4592 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 85 PID 3832 wrote to memory of 4592 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 85 PID 3832 wrote to memory of 4592 3832 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 85 PID 2884 wrote to memory of 540 2884 explorer.exe 88 PID 2884 wrote to memory of 540 2884 explorer.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe" C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2400
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" http://jc.110160.com/ad.htm2⤵PID:4592
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://jc.110160.com/ad.htm2⤵PID:540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Filesize1.6MB
MD5c5845949f95c5b713b9a76d5211c835f
SHA171c49204f8666bd2d54daf8bd0eabe0a4b145de7
SHA256c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
SHA51235efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad
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C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Filesize1.6MB
MD5c5845949f95c5b713b9a76d5211c835f
SHA171c49204f8666bd2d54daf8bd0eabe0a4b145de7
SHA256c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
SHA51235efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad