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Analysis
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max time kernel
146s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
14/01/2023, 23:02
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
1.4MB
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MD5
7bf3e054d1d4e7c0c6607444cba38191
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SHA1
5b2ae9be4c0370d0e80ef13f421a46dc2fd219c2
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SHA256
71c1eb652d1caf9c3f99843026fafba182f1d084b40564ece5915a46d864f015
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SHA512
99b0ad876704c4e66db41377d6a3e91bf86f61eeb21623560e319f790c2ba080c90f6acd25f9c862b6d45c5dd0d371b528b99716e32ba018ce00937566bbc6bd
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SSDEEP
24576:r20h5ljOYtHBWW2lONM9Krbe06fpiTKRHiuyrqA8mo1XTQB6iKBKhwCbr:r2wBOIBX+r9Ue06BiGhvyrhMxTQBF6C/
Malware Config
Extracted
gcleaner
45.139.105.171
85.31.46.167
107.182.129.235
171.22.30.106
Signatures
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Executes dropped EXE 3 IoCs
pid Process 3536 file.tmp 4804 OitFiles450.exe 4932 XEsdQAn.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation OitFiles450.exe -
Loads dropped DLL 1 IoCs
pid Process 3536 file.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 17 IoCs
description ioc Process File created C:\Program Files (x86)\Oit Files\language\is-G418H.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-K7C0K.tmp file.tmp File opened for modification C:\Program Files (x86)\Oit Files\unins000.dat file.tmp File created C:\Program Files (x86)\Oit Files\language\is-4I5TA.tmp file.tmp File created C:\Program Files (x86)\Oit Files\is-JKLV7.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-TKHHB.tmp file.tmp File created C:\Program Files (x86)\Oit Files\is-JCN94.tmp file.tmp File created C:\Program Files (x86)\Oit Files\is-T1A81.tmp file.tmp File created C:\Program Files (x86)\Oit Files\unins000.dat file.tmp File created C:\Program Files (x86)\Oit Files\is-BC00N.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-MMNF1.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-5H9ID.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-SVQU2.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-HJDNV.tmp file.tmp File created C:\Program Files (x86)\Oit Files\language\is-1048P.tmp file.tmp File created C:\Program Files (x86)\Oit Files\is-MPKKS.tmp file.tmp File opened for modification C:\Program Files (x86)\Oit Files\OitFiles450.exe file.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 3488 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4804 OitFiles450.exe 4804 OitFiles450.exe 4804 OitFiles450.exe 4804 OitFiles450.exe 4804 OitFiles450.exe 4804 OitFiles450.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3488 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4616 wrote to memory of 3536 4616 file.exe 81 PID 4616 wrote to memory of 3536 4616 file.exe 81 PID 4616 wrote to memory of 3536 4616 file.exe 81 PID 3536 wrote to memory of 4804 3536 file.tmp 82 PID 3536 wrote to memory of 4804 3536 file.tmp 82 PID 3536 wrote to memory of 4804 3536 file.tmp 82 PID 4804 wrote to memory of 4932 4804 OitFiles450.exe 83 PID 4804 wrote to memory of 4932 4804 OitFiles450.exe 83 PID 4804 wrote to memory of 4932 4804 OitFiles450.exe 83 PID 4804 wrote to memory of 3568 4804 OitFiles450.exe 91 PID 4804 wrote to memory of 3568 4804 OitFiles450.exe 91 PID 4804 wrote to memory of 3568 4804 OitFiles450.exe 91 PID 3568 wrote to memory of 3488 3568 cmd.exe 93 PID 3568 wrote to memory of 3488 3568 cmd.exe 93 PID 3568 wrote to memory of 3488 3568 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:4616 -
C:\Users\Admin\AppData\Local\Temp\is-EO12R.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-EO12R.tmp\file.tmp" /SL5="$701F8,1194351,229888,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3536 -
C:\Program Files (x86)\Oit Files\OitFiles450.exe"C:\Program Files (x86)\Oit Files\OitFiles450.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\XEsdQAn.exe
- Executes dropped EXE
PID:4932
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "OitFiles450.exe" /f & erase "C:\Program Files (x86)\Oit Files\OitFiles450.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:3568 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "OitFiles450.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3488
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
2.0MB
MD5ade723475c2dab13347fe98721cb14ae
SHA19a355c9836d936bddc29a35cd9e5eb59509d02f4
SHA2562c54c0310c8f3b19b1862364c9a67a35ad09b10aee4cbf71ce4054982f37249d
SHA512041f633538420346e76d2dc28fe7ce0ba6e8f7cb104ea500ea537ce32207696db95f599a0eb952587c05bc8190a01ad30bac5f6fc32a23377336674ea0b19268
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Filesize
2.0MB
MD5ade723475c2dab13347fe98721cb14ae
SHA19a355c9836d936bddc29a35cd9e5eb59509d02f4
SHA2562c54c0310c8f3b19b1862364c9a67a35ad09b10aee4cbf71ce4054982f37249d
SHA512041f633538420346e76d2dc28fe7ce0ba6e8f7cb104ea500ea537ce32207696db95f599a0eb952587c05bc8190a01ad30bac5f6fc32a23377336674ea0b19268
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
779KB
MD570f2afb7b9313b21cd852a33bebe23d8
SHA16d17a890977a7434fed0ab6f75f125335af36687
SHA2563f7c916efbd1fae45d696f00791a93d9ad2adf18b2ee66daddb30a9d431dfe18
SHA512dd00d319a17ee6eed692aa80426ce5004be98e550fe567c3b5d725d931e258107eb7fe2a2a181ba97b90093674bb50880b78de10ec4e64b75ecde3b303cdc447
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Filesize
779KB
MD570f2afb7b9313b21cd852a33bebe23d8
SHA16d17a890977a7434fed0ab6f75f125335af36687
SHA2563f7c916efbd1fae45d696f00791a93d9ad2adf18b2ee66daddb30a9d431dfe18
SHA512dd00d319a17ee6eed692aa80426ce5004be98e550fe567c3b5d725d931e258107eb7fe2a2a181ba97b90093674bb50880b78de10ec4e64b75ecde3b303cdc447
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c