Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
13/01/2023, 16:56
General
- Target TNT Express eInvoice_pdf.exe
- Size 448KB
- Sample230113-vfpblsed8z
- SHA256 27092cac933ddf8f3790ad2cfdd8bb8ffa80adec09f96f4acb2b3ee24ee2157e
Malware Config
Signatures
- Blocklisted process makes network request 1 IoCs
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 16 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TNT Express eInvoice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\TNT Express eInvoice_pdf.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cmjoekkw.exe"C:\Users\Admin\AppData\Local\Temp\cmjoekkw.exe" C:\Users\Admin\AppData\Local\Temp\wkvwc.bzi3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cmjoekkw.exe"C:\Users\Admin\AppData\Local\Temp\cmjoekkw.exe"4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autochk.exe"C:\Windows\SysWOW64\autochk.exe"2⤵
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C:\Windows\SysWOW64\autochk.exe"C:\Windows\SysWOW64\autochk.exe"2⤵
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4744 -s 1844⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 476 -p 4744 -ip 47441⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
cmjoekkw.exe
cmjoekkw.exe
cmjoekkw.exe
tzwdpa.ac
wkvwc.bzi
memory/1960-145-0x0000000000AA0000-0x0000000000AB2000-memory.dmp
memory/1960-148-0x00000000025F0000-0x000000000267F000-memory.dmp
memory/1960-147-0x00000000027B0000-0x0000000002AFA000-memory.dmp
memory/1960-146-0x0000000000890000-0x00000000008BD000-memory.dmp
memory/2764-174-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-180-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-215-0x00000000029B0000-0x00000000029C0000-memory.dmp
memory/2764-214-0x00000000029B0000-0x00000000029C0000-memory.dmp
memory/2764-213-0x00000000029B0000-0x00000000029C0000-memory.dmp
memory/2764-212-0x0000000000980000-0x0000000000990000-memory.dmp
memory/2764-149-0x0000000007B70000-0x0000000007C02000-memory.dmp
memory/2764-150-0x0000000007B70000-0x0000000007C02000-memory.dmp
memory/2764-151-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-152-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-153-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-154-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-155-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-156-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-157-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-158-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-159-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-160-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-161-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-162-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-163-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-164-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-165-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-166-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-167-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-168-0x00000000024A0000-0x00000000024B0000-memory.dmp
memory/2764-169-0x00000000029C0000-0x00000000029D0000-memory.dmp
memory/2764-170-0x00000000029C0000-0x00000000029D0000-memory.dmp
memory/2764-171-0x00000000029C0000-0x00000000029D0000-memory.dmp
memory/2764-172-0x00000000029C0000-0x00000000029D0000-memory.dmp
memory/2764-173-0x00000000029C0000-0x00000000029D0000-memory.dmp
memory/2764-142-0x0000000002880000-0x00000000029AA000-memory.dmp
memory/2764-175-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-176-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-177-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-178-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-179-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-211-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-181-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-182-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-183-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-184-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-185-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-186-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-187-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-188-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-189-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-190-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-191-0x0000000002450000-0x0000000002460000-memory.dmp
memory/2764-192-0x00000000029B0000-0x00000000029C0000-memory.dmp
memory/2764-193-0x0000000002450000-0x0000000002460000-memory.dmp
memory/2764-194-0x00000000029B0000-0x00000000029C0000-memory.dmp
memory/2764-195-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-196-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-197-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-198-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-199-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-200-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-201-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-202-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-203-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-204-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-205-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-206-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-207-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-208-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-209-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/2764-210-0x00000000009D0000-0x00000000009E0000-memory.dmp
memory/4840-144-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4840-139-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4840-140-0x00000000009C0000-0x0000000000D0A000-memory.dmp
memory/4840-141-0x0000000000470000-0x0000000000480000-memory.dmp