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Analysis
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max time kernel
81s -
max time network
84s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
30/10/2022, 03:46
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
2.4MB
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MD5
4c11b9e111f2446b24c2521ce5ce21f8
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SHA1
0c9e990bdb6fcf644e22b49b7609a49590df6050
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SHA256
bc1a565d38179945379a88be3c1124090e72db026260b97290b21ab4b970caed
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SHA512
c70999c401398a2d76898927617705bd4acba65aed81d1aff17bb17ea3b2e91bdae1dcffac0ab0945d384c3568be2515b8964f9a6abb4a40ad1de85a3a636647
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SSDEEP
49152:Z2bcilxlTK5WAwoCf14oyYNkAzQ1QHH1pB4thzOYzxrzQjrlA5hq:MYMDdpboQ7qhzzVr8eDq
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1800 is-L21RN.tmp 1936 ffsearcher64.exe 612 pE42yi.exe -
Loads dropped DLL 6 IoCs
pid Process 1184 file.exe 1800 is-L21RN.tmp 1800 is-L21RN.tmp 1800 is-L21RN.tmp 1800 is-L21RN.tmp 1936 ffsearcher64.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 12 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\ffSearcher\ffsearcher64.exe is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\unins000.dat is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-GDVRR.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-TUA7R.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-565V6.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-3DLM8.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-3J020.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-0UFD8.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-NFM3F.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-IVVS5.tmp is-L21RN.tmp File created C:\Program Files (x86)\ffSearcher\is-02G70.tmp is-L21RN.tmp File opened for modification C:\Program Files (x86)\ffSearcher\unins000.dat is-L21RN.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 1984 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1936 ffsearcher64.exe 1936 ffsearcher64.exe 1936 ffsearcher64.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1984 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1184 wrote to memory of 1800 1184 file.exe 26 PID 1800 wrote to memory of 1936 1800 is-L21RN.tmp 27 PID 1800 wrote to memory of 1936 1800 is-L21RN.tmp 27 PID 1800 wrote to memory of 1936 1800 is-L21RN.tmp 27 PID 1800 wrote to memory of 1936 1800 is-L21RN.tmp 27 PID 1936 wrote to memory of 612 1936 ffsearcher64.exe 30 PID 1936 wrote to memory of 612 1936 ffsearcher64.exe 30 PID 1936 wrote to memory of 612 1936 ffsearcher64.exe 30 PID 1936 wrote to memory of 612 1936 ffsearcher64.exe 30 PID 1936 wrote to memory of 1368 1936 ffsearcher64.exe 31 PID 1936 wrote to memory of 1368 1936 ffsearcher64.exe 31 PID 1936 wrote to memory of 1368 1936 ffsearcher64.exe 31 PID 1936 wrote to memory of 1368 1936 ffsearcher64.exe 31 PID 1368 wrote to memory of 1984 1368 cmd.exe 33 PID 1368 wrote to memory of 1984 1368 cmd.exe 33 PID 1368 wrote to memory of 1984 1368 cmd.exe 33 PID 1368 wrote to memory of 1984 1368 cmd.exe 33
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:1184 -
C:\Users\Admin\AppData\Local\Temp\is-8PN9N.tmp\is-L21RN.tmp"C:\Users\Admin\AppData\Local\Temp\is-8PN9N.tmp\is-L21RN.tmp" /SL4 $60122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2318152 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Program Files (x86)\ffSearcher\ffsearcher64.exe"C:\Program Files (x86)\ffSearcher\ffsearcher64.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\pE42yi.exe
- Executes dropped EXE
PID:612
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "ffsearcher64.exe" /f & erase "C:\Program Files (x86)\ffSearcher\ffsearcher64.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "ffsearcher64.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1984
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.7MB
MD52b2ce3411d7f5a3002b1b469db74b67d
SHA146cc7ce29a65fc655088ba6e21698e501a8335b1
SHA256df15a5996d51b68b02a6a1e417b0555a7f1df6bb7982b250d0e30dc85c611de1
SHA5122c78594449913bedaeeb7c8d64ed8dad3c3c2dc8665a5565ddd7e16f57328e84ad73ef250ec64f6df0d5f9c353e32b4d332499cde45dec5c4cc74f577f339902
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Filesize
3.7MB
MD52b2ce3411d7f5a3002b1b469db74b67d
SHA146cc7ce29a65fc655088ba6e21698e501a8335b1
SHA256df15a5996d51b68b02a6a1e417b0555a7f1df6bb7982b250d0e30dc85c611de1
SHA5122c78594449913bedaeeb7c8d64ed8dad3c3c2dc8665a5565ddd7e16f57328e84ad73ef250ec64f6df0d5f9c353e32b4d332499cde45dec5c4cc74f577f339902
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Filesize
657KB
MD57cd12c54a9751ca6eee6ab0c85fb68f5
SHA176562e9b7888b6d20d67addb5a90b68b54a51987
SHA256e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f
SHA51227ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc
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Filesize
657KB
MD57cd12c54a9751ca6eee6ab0c85fb68f5
SHA176562e9b7888b6d20d67addb5a90b68b54a51987
SHA256e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f
SHA51227ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
3.7MB
MD52b2ce3411d7f5a3002b1b469db74b67d
SHA146cc7ce29a65fc655088ba6e21698e501a8335b1
SHA256df15a5996d51b68b02a6a1e417b0555a7f1df6bb7982b250d0e30dc85c611de1
SHA5122c78594449913bedaeeb7c8d64ed8dad3c3c2dc8665a5565ddd7e16f57328e84ad73ef250ec64f6df0d5f9c353e32b4d332499cde45dec5c4cc74f577f339902
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Filesize
657KB
MD57cd12c54a9751ca6eee6ab0c85fb68f5
SHA176562e9b7888b6d20d67addb5a90b68b54a51987
SHA256e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f
SHA51227ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc
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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
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c