Analysis
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max time kernel
28s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20230621-en -
resource tags
arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system -
submitted
01-07-2023 10:08
Behavioral task
behavioral1
Sample
oreki.exe
Resource
win7-20230621-en
General
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Target
oreki.exe
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Size
673KB
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MD5
2284c315e2528e666ade79b75a0371cd
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SHA1
47e5af85d7ee5f3742837fbfe7f088f954e4ccac
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SHA256
ec36faf4a4d8329b10ac75b3b6c815cd041c62918eb1c9efb7adeea8e88e8744
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SHA512
cc0b76f20e36fe8425742715f87a0364c371ca6b4557ad754a9b802cbaa556f59fa8d3adabdba0081f8ae64cdfe402104fa56822c5e76d06517c58fce28426a0
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SSDEEP
12288:w4cVWcj9yXy13MiG6UvbZ61pccDFT0iqgsI8em8O+1qI:w4apyCOZuCc9LHm8O+
Malware Config
Signatures
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Detect Blackmoon payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1716-56-0x0000000010000000-0x0000000010066000-memory.dmp family_blackmoon behavioral1/memory/1716-60-0x0000000002850000-0x0000000003250000-memory.dmp family_blackmoon -
Modifies RDP port number used by Windows 1 TTPs
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Drops startup file 1 IoCs
Processes:
oreki.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SYSTEM_START.lnk oreki.exe -
Executes dropped EXE 1 IoCs
Processes:
mjcqepid process 580 mjcqe -
Loads dropped DLL 2 IoCs
Processes:
oreki.exemjcqepid process 1716 oreki.exe 580 mjcqe -
Processes:
resource yara_rule behavioral1/memory/1716-54-0x0000000000400000-0x000000000055F000-memory.dmp upx behavioral1/memory/1716-55-0x0000000000400000-0x000000000055F000-memory.dmp upx behavioral1/memory/1716-82-0x0000000000400000-0x000000000055F000-memory.dmp upx -
Processes:
resource yara_rule C:\Users\Public\Videos\VSTelem\pbswc\scrnshot.dll vmprotect \Users\Public\Videos\VSTelem\pbswc\Scrnshot.dll vmprotect behavioral1/memory/580-71-0x0000000010000000-0x000000001005F000-memory.dmp vmprotect behavioral1/memory/580-80-0x0000000010000000-0x000000001005F000-memory.dmp vmprotect -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
oreki.exemjcqepid process 1716 oreki.exe 580 mjcqe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
mjcqedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 mjcqe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz mjcqe -
Suspicious behavior: EnumeratesProcesses 29 IoCs
Processes:
oreki.exemjcqepid process 1716 oreki.exe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe 580 mjcqe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
oreki.exedescription pid process target process PID 1716 wrote to memory of 580 1716 oreki.exe mjcqe PID 1716 wrote to memory of 580 1716 oreki.exe mjcqe PID 1716 wrote to memory of 580 1716 oreki.exe mjcqe PID 1716 wrote to memory of 580 1716 oreki.exe mjcqe
Processes
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C:\Users\Admin\AppData\Local\Temp\oreki.exe"C:\Users\Admin\AppData\Local\Temp\oreki.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Public\Videos\VSTelem\pbswc\mjcqeC:\Users\Public\Videos\VSTelem\pbswc\mjcqe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:580
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
73KB
MD5f2756d32dec5f018dcef55d8b7b5662e
SHA1cbde904b5a8a6da3df2e83ea3112c0e0aa8ebed8
SHA256a3c23667f4801304183cd4c328d49cd0e4dedd552cf61c2a7be313403eddb189
SHA5127f2978d94d316894a3de4e7e482adbfee18ef4691128536a27673927ab5a773dd54ba66e5e5bbb7da87b6a38b0040f65e52b048d85971d4427a6c97b159bbe49
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Filesize
183KB
MD57c8270f9d0106ffaf862790f527737ce
SHA1beab49677deb4ef1188294ef13b91f0b571f83c0
SHA2560b87153beed1a7ac3f743f5117eea3f6c594774d77e7e0e36d82d9cc41dd9c87
SHA51264da62c8ae3783349f85e27389f5596e925f5485b02f4290e85fae38bbb4aab4ee593dcb44738050bb7cfa43c5df70b65bb93a3aafc498c15ca163e03896c605
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Filesize
212KB
MD517114379bd336feaea221c091973516a
SHA11db8bc886e793b84ee6bd9d354c3253938c46b56
SHA25663d5ff25d23bef01bd9717a6e5d203d59385d32e2518999ae4e20f9b7b283044
SHA512ccf84b331ec713e6391407a17fb48a5e1cbc568840dccb0754dbd48997f911343bd0924ada844753c6787ec65271b00549c3e4e89d93c101677e18dfd40a79ee
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Filesize
212KB
MD517114379bd336feaea221c091973516a
SHA11db8bc886e793b84ee6bd9d354c3253938c46b56
SHA25663d5ff25d23bef01bd9717a6e5d203d59385d32e2518999ae4e20f9b7b283044
SHA512ccf84b331ec713e6391407a17fb48a5e1cbc568840dccb0754dbd48997f911343bd0924ada844753c6787ec65271b00549c3e4e89d93c101677e18dfd40a79ee
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Filesize
183KB
MD57c8270f9d0106ffaf862790f527737ce
SHA1beab49677deb4ef1188294ef13b91f0b571f83c0
SHA2560b87153beed1a7ac3f743f5117eea3f6c594774d77e7e0e36d82d9cc41dd9c87
SHA51264da62c8ae3783349f85e27389f5596e925f5485b02f4290e85fae38bbb4aab4ee593dcb44738050bb7cfa43c5df70b65bb93a3aafc498c15ca163e03896c605