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Analysis
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max time kernel
81s -
max time network
85s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 10:03
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
3.7MB
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MD5
e7fa81fb245b3897eadc1724cf439b7b
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SHA1
375b87cfeb71f8dbddcfa2169710add49501841c
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SHA256
e3a84dfbb3c7738d7cd178852094b341df4382c8dd180764f8be572b5d6bc734
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SHA512
7f1e4dc3df3fe3ba4f7d3bbd22810ae9a0e6bfd036129c8dc23e4ad6501061ef2d615b22983b8d280be1131aaa8443502f90b1afc73b2a60c1fc93dc309cc218
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SSDEEP
98304:w8UnghPfNuP37lWLb5Uq3WYE4BTH/wbRjcY/5:wgRfNu46q3b7TQRjcY/5
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1956 is-S6CH3.tmp 944 PrintFolders.exe 1528 aJcIc4LOOMXk.exe -
Loads dropped DLL 10 IoCs
pid Process 1652 file.exe 1956 is-S6CH3.tmp 1956 is-S6CH3.tmp 1956 is-S6CH3.tmp 1956 is-S6CH3.tmp 944 PrintFolders.exe 944 PrintFolders.exe 944 PrintFolders.exe 1528 aJcIc4LOOMXk.exe 1528 aJcIc4LOOMXk.exe -
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\is-5N825.tmp is-S6CH3.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\is-4V09D.tmp is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\is-N15UH.tmp is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\is-4QRT0.tmp is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\is-32397.tmp is-S6CH3.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\unins000.dat is-S6CH3.tmp File created C:\Program Files (x86)\PrintFolders\is-N48ED.tmp is-S6CH3.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 1964 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 944 PrintFolders.exe 944 PrintFolders.exe 944 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1964 taskkill.exe Token: SeRestorePrivilege 1956 is-S6CH3.tmp Token: SeBackupPrivilege 1956 is-S6CH3.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1652 wrote to memory of 1956 1652 file.exe 28 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 1956 wrote to memory of 944 1956 is-S6CH3.tmp 29 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 1528 944 PrintFolders.exe 30 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 944 wrote to memory of 580 944 PrintFolders.exe 33 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35 PID 580 wrote to memory of 1964 580 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1652 -
C:\Users\Admin\AppData\Local\Temp\is-M3KP6.tmp\is-S6CH3.tmp"C:\Users\Admin\AppData\Local\Temp\is-M3KP6.tmp\is-S6CH3.tmp" /SL4 $60126 "C:\Users\Admin\AppData\Local\Temp\file.exe" 3616853 2088962⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\aJcIc4LOOMXk.exe
- Executes dropped EXE
- Loads dropped DLL
PID:1528
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:580 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1964
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
6.0MB
MD57617ae4ac0c2bc90e9f1e8de099f618b
SHA1e955700e42f83de2359e33e718894c0c75db82ea
SHA256740617ab4f33ec6691baf8fd161402129a0f68b3ab37dc4a8b8886a13207a5e9
SHA512a88204f279439d9a82503a250dcda21302658f74e39ad13ac0f4cb649d29e4788e75b0001c4e1c7c0a2e0842ee374e715c1dacebc1123244ca0f3b2c58750afc
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Filesize
6.0MB
MD57617ae4ac0c2bc90e9f1e8de099f618b
SHA1e955700e42f83de2359e33e718894c0c75db82ea
SHA256740617ab4f33ec6691baf8fd161402129a0f68b3ab37dc4a8b8886a13207a5e9
SHA512a88204f279439d9a82503a250dcda21302658f74e39ad13ac0f4cb649d29e4788e75b0001c4e1c7c0a2e0842ee374e715c1dacebc1123244ca0f3b2c58750afc
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Filesize
797KB
MD510c841b0221d6870de7c951eaf5b1da9
SHA17cd2baa89144371033d8d7bebf947da886cd8795
SHA2564252858d9c6d8d55f829d7e418ea8357fd26fbdf8c0fce1fed23a8c720a8807e
SHA512e2330231d6056cf8f395e1b884e136ee29161f9b9afb4492e9057aaa254c8a9b89b95be8bd11dc6d83fdc2147b864529ce49ef072015f9f40f677a0f8d12555e
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Filesize
797KB
MD510c841b0221d6870de7c951eaf5b1da9
SHA17cd2baa89144371033d8d7bebf947da886cd8795
SHA2564252858d9c6d8d55f829d7e418ea8357fd26fbdf8c0fce1fed23a8c720a8807e
SHA512e2330231d6056cf8f395e1b884e136ee29161f9b9afb4492e9057aaa254c8a9b89b95be8bd11dc6d83fdc2147b864529ce49ef072015f9f40f677a0f8d12555e
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
6.0MB
MD57617ae4ac0c2bc90e9f1e8de099f618b
SHA1e955700e42f83de2359e33e718894c0c75db82ea
SHA256740617ab4f33ec6691baf8fd161402129a0f68b3ab37dc4a8b8886a13207a5e9
SHA512a88204f279439d9a82503a250dcda21302658f74e39ad13ac0f4cb649d29e4788e75b0001c4e1c7c0a2e0842ee374e715c1dacebc1123244ca0f3b2c58750afc
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Filesize
6.0MB
MD57617ae4ac0c2bc90e9f1e8de099f618b
SHA1e955700e42f83de2359e33e718894c0c75db82ea
SHA256740617ab4f33ec6691baf8fd161402129a0f68b3ab37dc4a8b8886a13207a5e9
SHA512a88204f279439d9a82503a250dcda21302658f74e39ad13ac0f4cb649d29e4788e75b0001c4e1c7c0a2e0842ee374e715c1dacebc1123244ca0f3b2c58750afc
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Filesize
6.0MB
MD57617ae4ac0c2bc90e9f1e8de099f618b
SHA1e955700e42f83de2359e33e718894c0c75db82ea
SHA256740617ab4f33ec6691baf8fd161402129a0f68b3ab37dc4a8b8886a13207a5e9
SHA512a88204f279439d9a82503a250dcda21302658f74e39ad13ac0f4cb649d29e4788e75b0001c4e1c7c0a2e0842ee374e715c1dacebc1123244ca0f3b2c58750afc
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
797KB
MD510c841b0221d6870de7c951eaf5b1da9
SHA17cd2baa89144371033d8d7bebf947da886cd8795
SHA2564252858d9c6d8d55f829d7e418ea8357fd26fbdf8c0fce1fed23a8c720a8807e
SHA512e2330231d6056cf8f395e1b884e136ee29161f9b9afb4492e9057aaa254c8a9b89b95be8bd11dc6d83fdc2147b864529ce49ef072015f9f40f677a0f8d12555e
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c