Analysis
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max time kernel
178s -
max time network
186s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
19-07-2022 09:26
Static task
static1
Behavioral task
behavioral1
Sample
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe
Resource
win10v2004-20220414-en
General
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Target
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe
-
Size
943KB
-
MD5
8e048607275f42adff61e4adfee9df0c
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SHA1
e371fddeb36b88381a7670a5fd32f6a0567d9124
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SHA256
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944
-
SHA512
0841226e5ed67a608047404b56f1ec97192bc446a06757b2bdc2c3bf9f7cfa3b9325bb9eb56cc81a30d289ce8624980ef752d1612a1ada53182575e404b1c00f
Malware Config
Extracted
sendsafe
UNREGISTERED
91.220.131.43:50003
91.220.131.43:50004
-
service_name
Enterprise Mailing Service
Signatures
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SendSafe payload 8 IoCs
Processes:
resource yara_rule behavioral1/memory/952-63-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-65-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-66-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-68-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-69-0x0000000000545951-mapping.dmp sendsafe behavioral1/memory/952-71-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-72-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe behavioral1/memory/952-73-0x0000000000400000-0x00000000005C9000-memory.dmp sendsafe -
Loads dropped DLL 2 IoCs
Processes:
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exepid process 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exedescription pid process target process PID 748 set thread context of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exepid process 952 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exedescription pid process target process PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe PID 748 wrote to memory of 952 748 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe 502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe"C:\Users\Admin\AppData\Local\Temp\502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe"C:\Users\Admin\AppData\Local\Temp\502a0e685078b5c44fd566ea2f14c7f998fbb1d04f6527a5c289bc661e6b9944.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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\Users\Admin\AppData\Local\Temp\nsj9E54.tmp\System.dllFilesize
11KB
MD5883eff06ac96966270731e4e22817e11
SHA1523c87c98236cbc04430e87ec19b977595092ac8
SHA25644e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
SHA51260333253342476911c84bbc1d9bf8a29f811207787fdd6107dce8d2b6e031669303f28133ffc811971ed7792087fe90fb1faabc0af4e91c298ba51e28109a390
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\Users\Admin\AppData\Roaming\SFhelper.dllFilesize
54KB
MD5742b299f76eeffe057a63574c295ce75
SHA1b7ab39b8c0958885b55ff6ca4bce31d077445596
SHA256887634e1ad732a47bb0823144957b18e5376dac6dc228c4e69c8bf1dc99de34a
SHA512ad539f025dbd38fcb8dcc3ba8cb571a51fc7c94ef833ee1e4f980338e6f0ef9a3cada0cf8707b2cefaeee15ba35f35a75822f8c85e34052ce5ba44af3abbbef2
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memory/748-54-0x0000000075211000-0x0000000075213000-memory.dmpFilesize
8KB
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memory/952-63-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-59-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-61-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-58-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-65-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-66-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-68-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-69-0x0000000000545951-mapping.dmp
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memory/952-71-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-72-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB
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memory/952-73-0x0000000000400000-0x00000000005C9000-memory.dmpFilesize
1.8MB