Analysis
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max time kernel
152s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 01:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
3.4MB
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MD5
365c04e9edcfb735f44314ef8b4646a7
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SHA1
7928a871f296edcc0fdb1ce09aeb7ef453c4df8e
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SHA256
e861439a18107599c91e5a38a66d6f0f81eff2a7286900c3ed16e27d59f87536
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SHA512
4d244bf743b4f5e38d914031b7af95fe68aee1eed655daeb3514b70b0d9b3a7e89724b0ca94602265cb0f052fbcb6911dc4d5462cf4768b46721b900bb39c06b
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SSDEEP
98304:QGrPEMIaS6rn3wGcZAnNP/EEYJG5SeuykOVbqFeZ87jXcyb:rjfIaS6r3wGcZwDKGweuylVb0087jXcY
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4916 is-1VDU0.tmp 3964 PrintFolders.exe 2000 QWnFFP.exe -
Loads dropped DLL 1 IoCs
pid Process 4916 is-1VDU0.tmp -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 9 IoCs
description ioc Process File created C:\Program Files (x86)\PrintFolders\unins000.dat is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-OMO8Q.tmp is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-4P686.tmp is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-533NS.tmp is-1VDU0.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-1VDU0.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-604PP.tmp is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-A7US7.tmp is-1VDU0.tmp File created C:\Program Files (x86)\PrintFolders\is-NF26G.tmp is-1VDU0.tmp -
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 6 IoCs
pid Process 3964 PrintFolders.exe 3964 PrintFolders.exe 3964 PrintFolders.exe 3964 PrintFolders.exe 3964 PrintFolders.exe 3964 PrintFolders.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3964 PrintFolders.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4940 wrote to memory of 4916 4940 file.exe 83 PID 4940 wrote to memory of 4916 4940 file.exe 83 PID 4940 wrote to memory of 4916 4940 file.exe 83 PID 4916 wrote to memory of 3964 4916 is-1VDU0.tmp 85 PID 4916 wrote to memory of 3964 4916 is-1VDU0.tmp 85 PID 4916 wrote to memory of 3964 4916 is-1VDU0.tmp 85 PID 3964 wrote to memory of 2000 3964 PrintFolders.exe 88 PID 3964 wrote to memory of 2000 3964 PrintFolders.exe 88 PID 3964 wrote to memory of 2000 3964 PrintFolders.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Users\Admin\AppData\Local\Temp\is-EOUVK.tmp\is-1VDU0.tmp"C:\Users\Admin\AppData\Local\Temp\is-EOUVK.tmp\is-1VDU0.tmp" /SL4 $40044 "C:\Users\Admin\AppData\Local\Temp\file.exe" 3354322 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\QWnFFP.exe4⤵
- Executes dropped EXE
PID:2000
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
5.7MB
MD555c4dd603526b3675cd8095bcec017d8
SHA1138101a2e415050b00f870ad3fef89ff837fe6a0
SHA2563d374f8c8f9909ce3abdfff44416ec33ac77dfa1a6910f1532f09a9beea4a126
SHA5123624df4d2b28575e217a06f3d941c86b4ac8051525e724007b1c4b872aed3c7bb9e87d0a16e3775c0d5976a5c6cb20adc653ae5c07e1eb28503da993a3125e6d
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Filesize
5.7MB
MD555c4dd603526b3675cd8095bcec017d8
SHA1138101a2e415050b00f870ad3fef89ff837fe6a0
SHA2563d374f8c8f9909ce3abdfff44416ec33ac77dfa1a6910f1532f09a9beea4a126
SHA5123624df4d2b28575e217a06f3d941c86b4ac8051525e724007b1c4b872aed3c7bb9e87d0a16e3775c0d5976a5c6cb20adc653ae5c07e1eb28503da993a3125e6d
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c