Analysis
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max time kernel
153s -
max time network
178s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
30-08-2021 21:09
Static task
static1
Behavioral task
behavioral1
Sample
Quotation_562626263667.pdf.js
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Quotation_562626263667.pdf.js
Resource
win10v20210408
General
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Target
Quotation_562626263667.pdf.js
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Size
205KB
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MD5
0f8ef908f483815d049a4c34433b89a0
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SHA1
2179ad62490090265247159dc8fe485c15df971f
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SHA256
31f5c289daf8c7fa2c8652f1686e208f6d25784bc9bed2a166c906031e70d449
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SHA512
cce76b71dfb9537b3489ed921ccd9e610f43c1c047df44f0a10252f78b6484df7aa0a49eb193ebb11c9c388dffe89901f10a8bcaebfad57824eb102f5a5c7de1
Malware Config
Signatures
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Blocklisted process makes network request 18 IoCs
Processes:
WScript.exeflow pid process 7 1920 WScript.exe 8 1920 WScript.exe 9 1920 WScript.exe 11 1920 WScript.exe 12 1920 WScript.exe 13 1920 WScript.exe 15 1920 WScript.exe 16 1920 WScript.exe 17 1920 WScript.exe 19 1920 WScript.exe 20 1920 WScript.exe 21 1920 WScript.exe 23 1920 WScript.exe 24 1920 WScript.exe 25 1920 WScript.exe 27 1920 WScript.exe 28 1920 WScript.exe 29 1920 WScript.exe -
Drops startup file 2 IoCs
Processes:
WScript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mtdbwLCheS.js WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mtdbwLCheS.js WScript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
WScript.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run WScript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\mtdbwLCheS.js\"" WScript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1756 1476 WerFault.exe javaw.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
WerFault.exepid process 1756 WerFault.exe 1756 WerFault.exe 1756 WerFault.exe 1756 WerFault.exe 1756 WerFault.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
WerFault.exepid process 1756 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
WerFault.exedescription pid process Token: SeDebugPrivilege 1756 WerFault.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
wscript.exejavaw.exedescription pid process target process PID 1812 wrote to memory of 1920 1812 wscript.exe WScript.exe PID 1812 wrote to memory of 1920 1812 wscript.exe WScript.exe PID 1812 wrote to memory of 1920 1812 wscript.exe WScript.exe PID 1812 wrote to memory of 1476 1812 wscript.exe javaw.exe PID 1812 wrote to memory of 1476 1812 wscript.exe javaw.exe PID 1812 wrote to memory of 1476 1812 wscript.exe javaw.exe PID 1476 wrote to memory of 1756 1476 javaw.exe WerFault.exe PID 1476 wrote to memory of 1756 1476 javaw.exe WerFault.exe PID 1476 wrote to memory of 1756 1476 javaw.exe WerFault.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\Quotation_562626263667.pdf.js1⤵
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\mtdbwLCheS.js"2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1920 -
C:\Program Files\Java\jre7\bin\javaw.exe"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\nnduvbgnqf.txt"2⤵
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1476 -s 1403⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1756
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\mtdbwLCheS.jsMD5
3b69300c20db18e2d4ac0cf12d54dd6f
SHA1326fa9803bede447183b84699e07ab6061796923
SHA25692740ff3dd79b56800fbefc0963f3cda86855445d2e2e7250d362bf9ca91ddca
SHA5128f331d7d3540a2e3b7a63a8f12e331b9a1ca210bd22b61d4318d5e4556d1f242dfe350e613b467d80fb69de2dd2354c06e9b9fdddb3d2fe48c4117312607c159
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C:\Users\Admin\AppData\Roaming\nnduvbgnqf.txtMD5
2e458a59025b390fbdf7d3717314b507
SHA1d5a84f501bfa81682ebde5e31a68794140141785
SHA2566b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b
SHA5122b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22
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memory/1476-63-0x0000000000000000-mapping.dmp
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memory/1756-66-0x0000000000000000-mapping.dmp
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memory/1756-68-0x0000000000620000-0x0000000000621000-memory.dmpFilesize
4KB
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memory/1812-60-0x000007FEFB631000-0x000007FEFB633000-memory.dmpFilesize
8KB
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memory/1920-61-0x0000000000000000-mapping.dmp