Analysis
- max time kernel
153s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
27/08/2022, 06:27
General
- Target file.exe
- Size 184KB
- Sample220827-g7rddsfbck
- SHA256 e93e3129169cbe63005928b40e06a8f4e1087779fda9f221867e6f3ffebd73e9
Malware Config
Extracted
-
djvu
-
http://acacaca.org/lancer/get.php
-
extension
.qqkk
-
offline_id
0MVuBxT6o3dUivEUdhCKPfN5ljxbYptbzrFZvst1
-
payload_url
http://rgyui.top/dl/build2.exe
http://acacaca.org/files/1/build3.exe
-
ransomnote
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Signatures
- Detected Djvu ransomware 5 IoCs
- Detects Smokeloader packer 1 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\6A81.exeC:\Users\Admin\AppData\Local\Temp\6A81.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\6A81.exeC:\Users\Admin\AppData\Local\Temp\6A81.exe2⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Temp\8936.exeC:\Users\Admin\AppData\Local\Temp\8936.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
6A81.exe
6A81.exe
6A81.exe
8936.exe
8936.exe
memory/3068-146-0x0000000000400000-0x0000000000870000-memory.dmp
memory/3068-152-0x00000000009F9000-0x0000000000A25000-memory.dmp
memory/3068-160-0x0000000005080000-0x00000000050BC000-memory.dmp
memory/3068-159-0x0000000005D20000-0x0000000005E2A000-memory.dmp
memory/3068-158-0x0000000005030000-0x0000000005042000-memory.dmp
memory/3068-157-0x0000000005700000-0x0000000005D18000-memory.dmp
memory/3068-144-0x00000000009F9000-0x0000000000A25000-memory.dmp
memory/3068-145-0x0000000002480000-0x00000000024B9000-memory.dmp
memory/3068-156-0x0000000005150000-0x00000000056F4000-memory.dmp
memory/3068-154-0x0000000000400000-0x0000000000870000-memory.dmp
memory/3068-153-0x0000000002480000-0x00000000024B9000-memory.dmp
memory/3512-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3512-151-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3512-150-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3512-155-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4080-133-0x00000000006A0000-0x00000000006A9000-memory.dmp
memory/4080-132-0x00000000006CD000-0x00000000006DE000-memory.dmp
memory/4080-134-0x0000000000400000-0x000000000048D000-memory.dmp
memory/4080-135-0x0000000000400000-0x000000000048D000-memory.dmp
memory/4292-143-0x0000000000A30000-0x0000000000B4B000-memory.dmp
memory/4292-142-0x00000000024F6000-0x0000000002588000-memory.dmp