Analysis
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max time kernel
91s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2022, 22:02
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
2.5MB
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MD5
35c82d586f59bb4e0072a8a085efff47
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SHA1
089024610b0991b00ff314962af4652756cf3628
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SHA256
9b85176a686d741d54e05e0f63cc4b9223bf0d43da5c58f919546e0ecd1952e1
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SHA512
841f93c1535b5454085728dcc19080fa2c77122fa85eeff55e7483dfc5262948abb9e948b2e23f2d9b0e630a907bcc12241bf2da1764591b0ce51b5b3caf191b
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SSDEEP
49152:Z2Y3Hd2PQRigqrImQ5cdbH67+dbyP4Tr70RN7OXWQB9GJXC4+61IuTA5hq:M89aQRTqcmQ5cpaj4TA4mQTGJXCH61IE
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 3884 is-UNI09.tmp 4864 fhsearcher65.exe 4004 5IZ60mS7.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation fhsearcher65.exe -
Loads dropped DLL 1 IoCs
pid Process 3884 is-UNI09.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)\fhSearcher\is-14R52.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-US3JA.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\unins000.dat is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-9IKL0.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-S6QAF.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-M2LBH.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-PFFM2.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-EQ1AM.tmp is-UNI09.tmp File opened for modification C:\Program Files (x86)\fhSearcher\unins000.dat is-UNI09.tmp File opened for modification C:\Program Files (x86)\fhSearcher\fhsearcher65.exe is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-NQ31G.tmp is-UNI09.tmp File created C:\Program Files (x86)\fhSearcher\is-OBMKN.tmp is-UNI09.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 3896 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4864 fhsearcher65.exe 4864 fhsearcher65.exe 4864 fhsearcher65.exe 4864 fhsearcher65.exe 4864 fhsearcher65.exe 4864 fhsearcher65.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3896 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2372 wrote to memory of 3884 2372 file.exe 81 PID 2372 wrote to memory of 3884 2372 file.exe 81 PID 2372 wrote to memory of 3884 2372 file.exe 81 PID 3884 wrote to memory of 4864 3884 is-UNI09.tmp 82 PID 3884 wrote to memory of 4864 3884 is-UNI09.tmp 82 PID 3884 wrote to memory of 4864 3884 is-UNI09.tmp 82 PID 4864 wrote to memory of 4004 4864 fhsearcher65.exe 85 PID 4864 wrote to memory of 4004 4864 fhsearcher65.exe 85 PID 4864 wrote to memory of 4004 4864 fhsearcher65.exe 85 PID 4864 wrote to memory of 2068 4864 fhsearcher65.exe 91 PID 4864 wrote to memory of 2068 4864 fhsearcher65.exe 91 PID 4864 wrote to memory of 2068 4864 fhsearcher65.exe 91 PID 2068 wrote to memory of 3896 2068 cmd.exe 93 PID 2068 wrote to memory of 3896 2068 cmd.exe 93 PID 2068 wrote to memory of 3896 2068 cmd.exe 93
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:2372 -
C:\Users\Admin\AppData\Local\Temp\is-UNPHS.tmp\is-UNI09.tmp"C:\Users\Admin\AppData\Local\Temp\is-UNPHS.tmp\is-UNI09.tmp" /SL4 $A0048 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2369099 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Program Files (x86)\fhSearcher\fhsearcher65.exe"C:\Program Files (x86)\fhSearcher\fhsearcher65.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4864 -
C:\Users\Admin\AppData\Roaming\{1ca2f389-1ab8-11ed-aebb-806e6f6e6963}\5IZ60mS7.exe4⤵
- Executes dropped EXE
PID:4004
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "fhsearcher65.exe" /f & erase "C:\Program Files (x86)\fhSearcher\fhsearcher65.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "fhsearcher65.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3896
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.6MB
MD58f5f63517718422f797122b415a12f84
SHA10f39d193f11d161997d14355024840cec94cecf8
SHA256cd0053feb4c9d74501447e7bea0f46527cbf1300fbfd9b7c402c55e028cc3df6
SHA512089d9d56c2fb59609b66814dd29a1546f9b2f87836288addb0d90cb74689070c5e9dee65ae8dca555b8776717983efc49ce2e1bc6d6646fe0a867a19e7d245ed
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Filesize
3.6MB
MD58f5f63517718422f797122b415a12f84
SHA10f39d193f11d161997d14355024840cec94cecf8
SHA256cd0053feb4c9d74501447e7bea0f46527cbf1300fbfd9b7c402c55e028cc3df6
SHA512089d9d56c2fb59609b66814dd29a1546f9b2f87836288addb0d90cb74689070c5e9dee65ae8dca555b8776717983efc49ce2e1bc6d6646fe0a867a19e7d245ed
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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