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Analysis
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max time kernel
112s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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 3144 is-3LGPH.tmp 4744 ffsearcher64.exe 2208 9BKpbriAf9aLkR.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation ffsearcher64.exe -
Loads dropped DLL 1 IoCs
pid Process 3144 is-3LGPH.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 12 IoCs
description ioc Process File created C:\Program Files (x86)\ffSearcher\is-90K30.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-I1NP1.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-REHP8.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-39BL0.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-GJNRL.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-CJUD5.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-PSVOV.tmp is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-SM9P4.tmp is-3LGPH.tmp File opened for modification C:\Program Files (x86)\ffSearcher\unins000.dat is-3LGPH.tmp File opened for modification C:\Program Files (x86)\ffSearcher\ffsearcher64.exe is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\unins000.dat is-3LGPH.tmp File created C:\Program Files (x86)\ffSearcher\is-G9Q36.tmp is-3LGPH.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 372 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4744 ffsearcher64.exe 4744 ffsearcher64.exe 4744 ffsearcher64.exe 4744 ffsearcher64.exe 4744 ffsearcher64.exe 4744 ffsearcher64.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 372 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2836 wrote to memory of 3144 2836 file.exe 83 PID 2836 wrote to memory of 3144 2836 file.exe 83 PID 2836 wrote to memory of 3144 2836 file.exe 83 PID 3144 wrote to memory of 4744 3144 is-3LGPH.tmp 84 PID 3144 wrote to memory of 4744 3144 is-3LGPH.tmp 84 PID 3144 wrote to memory of 4744 3144 is-3LGPH.tmp 84 PID 4744 wrote to memory of 2208 4744 ffsearcher64.exe 85 PID 4744 wrote to memory of 2208 4744 ffsearcher64.exe 85 PID 4744 wrote to memory of 2208 4744 ffsearcher64.exe 85 PID 4744 wrote to memory of 4344 4744 ffsearcher64.exe 92 PID 4744 wrote to memory of 4344 4744 ffsearcher64.exe 92 PID 4744 wrote to memory of 4344 4744 ffsearcher64.exe 92 PID 4344 wrote to memory of 372 4344 cmd.exe 94 PID 4344 wrote to memory of 372 4344 cmd.exe 94 PID 4344 wrote to memory of 372 4344 cmd.exe 94
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:2836 -
C:\Users\Admin\AppData\Local\Temp\is-8LHVT.tmp\is-3LGPH.tmp"C:\Users\Admin\AppData\Local\Temp\is-8LHVT.tmp\is-3LGPH.tmp" /SL4 $A005E "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:3144 -
C:\Program Files (x86)\ffSearcher\ffsearcher64.exe"C:\Program Files (x86)\ffSearcher\ffsearcher64.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4744 -
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\9BKpbriAf9aLkR.exe
- Executes dropped EXE
PID:2208
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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:4344 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "ffsearcher64.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:372
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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
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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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
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c