Analysis
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max time kernel
208s -
max time network
279s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
05-04-2023 11:05
Static task
static1
Behavioral task
behavioral1
Sample
b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe
Resource
win7-20230220-en
General
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Target
b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe
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Size
2.8MB
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MD5
77b5fc3a6fa011dcd4ce255ef17a7e0e
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SHA1
3ee0cce647963d106a1a883a7de8b7fdccba9a82
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SHA256
b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac
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SHA512
c5c6fb58032184bab9f272beb314879bc8e6a1856f18de29ef882368ef7673e934207e43e587f6a2d8b2b9e25fcaa6dfb2be21e262b4edce7801d6edd461d113
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SSDEEP
49152:AG+V7ALQ/AYAFxfBP5H6ChYM0jrwTzecwvIcxLQV8tH6aSPgZU9MTt4ZeOKz:d+VQFLfBQCSwTCczcKVIHmNqWZeOKz
Malware Config
Extracted
gcleaner
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Signatures
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Executes dropped EXE 3 IoCs
Processes:
is-G3063.tmpFRec37.exeyfwArqCoea9.exepid process 1080 is-G3063.tmp 1332 FRec37.exe 672 yfwArqCoea9.exe -
Loads dropped DLL 7 IoCs
Processes:
b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exeis-G3063.tmpFRec37.exepid process 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe 1080 is-G3063.tmp 1080 is-G3063.tmp 1080 is-G3063.tmp 1080 is-G3063.tmp 1080 is-G3063.tmp 1332 FRec37.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
Processes:
is-G3063.tmpdescription ioc process File opened for modification C:\Program Files (x86)\FIOsoftFR\FRec37\unins000.dat is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\is-C90OG.tmp is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\is-3GUSI.tmp is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\is-OM3TG.tmp is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\data\is-DMTHN.tmp is-G3063.tmp File opened for modification C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exe is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\unins000.dat is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\is-B6A5K.tmp is-G3063.tmp File created C:\Program Files (x86)\FIOsoftFR\FRec37\is-0SAPG.tmp is-G3063.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
Processes:
taskkill.exepid process 688 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
FRec37.exepid process 1332 FRec37.exe 1332 FRec37.exe 1332 FRec37.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 688 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exeis-G3063.tmpFRec37.execmd.exedescription pid process target process PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1152 wrote to memory of 1080 1152 b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe is-G3063.tmp PID 1080 wrote to memory of 1332 1080 is-G3063.tmp FRec37.exe PID 1080 wrote to memory of 1332 1080 is-G3063.tmp FRec37.exe PID 1080 wrote to memory of 1332 1080 is-G3063.tmp FRec37.exe PID 1080 wrote to memory of 1332 1080 is-G3063.tmp FRec37.exe PID 1332 wrote to memory of 672 1332 FRec37.exe yfwArqCoea9.exe PID 1332 wrote to memory of 672 1332 FRec37.exe yfwArqCoea9.exe PID 1332 wrote to memory of 672 1332 FRec37.exe yfwArqCoea9.exe PID 1332 wrote to memory of 672 1332 FRec37.exe yfwArqCoea9.exe PID 1332 wrote to memory of 580 1332 FRec37.exe cmd.exe PID 1332 wrote to memory of 580 1332 FRec37.exe cmd.exe PID 1332 wrote to memory of 580 1332 FRec37.exe cmd.exe PID 1332 wrote to memory of 580 1332 FRec37.exe cmd.exe PID 580 wrote to memory of 688 580 cmd.exe taskkill.exe PID 580 wrote to memory of 688 580 cmd.exe taskkill.exe PID 580 wrote to memory of 688 580 cmd.exe taskkill.exe PID 580 wrote to memory of 688 580 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe"C:\Users\Admin\AppData\Local\Temp\b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-MV19F.tmp\is-G3063.tmp"C:\Users\Admin\AppData\Local\Temp\is-MV19F.tmp\is-G3063.tmp" /SL4 $B0124 "C:\Users\Admin\AppData\Local\Temp\b17162f897bd018c87b3ae454dfb04c43f3921c0cba9f8ef56f237da9f0e18ac.exe" 2693031 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exe"C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\yfwArqCoea9.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec37.exe" /f & erase "C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec37.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exeFilesize
3.1MB
MD5c13f78a237b0e52a2b43e53149b0bff4
SHA149be6e83af974bae64696e03da17ca27f3fe8da9
SHA2561d1ecd4d16571872231b165c2165e00ca92ac7d5594924af81daceb38c783ee5
SHA5127e30a670d5c25082c740a9773072b3b448bf94373f1a847833dc2a9aa94178643c7058e714e0311656c5019f19b2aa49f3dac4e28d535689d1fbde5b42068344
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C:\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exeFilesize
3.1MB
MD5c13f78a237b0e52a2b43e53149b0bff4
SHA149be6e83af974bae64696e03da17ca27f3fe8da9
SHA2561d1ecd4d16571872231b165c2165e00ca92ac7d5594924af81daceb38c783ee5
SHA5127e30a670d5c25082c740a9773072b3b448bf94373f1a847833dc2a9aa94178643c7058e714e0311656c5019f19b2aa49f3dac4e28d535689d1fbde5b42068344
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\TOS3MI7U\dll[2].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-MV19F.tmp\is-G3063.tmpFilesize
658KB
MD571c654797ffa6853389354687dde286b
SHA1edd7178ab9043acc4a05dddb9dad972ede2f7748
SHA25697d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04
SHA512d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a
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C:\Users\Admin\AppData\Local\Temp\is-MV19F.tmp\is-G3063.tmpFilesize
658KB
MD571c654797ffa6853389354687dde286b
SHA1edd7178ab9043acc4a05dddb9dad972ede2f7748
SHA25697d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04
SHA512d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\yfwArqCoea9.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Program Files (x86)\FIOsoftFR\FRec37\FRec37.exeFilesize
3.1MB
MD5c13f78a237b0e52a2b43e53149b0bff4
SHA149be6e83af974bae64696e03da17ca27f3fe8da9
SHA2561d1ecd4d16571872231b165c2165e00ca92ac7d5594924af81daceb38c783ee5
SHA5127e30a670d5c25082c740a9773072b3b448bf94373f1a847833dc2a9aa94178643c7058e714e0311656c5019f19b2aa49f3dac4e28d535689d1fbde5b42068344
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\Users\Admin\AppData\Local\Temp\is-5UGMN.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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\Users\Admin\AppData\Local\Temp\is-5UGMN.tmp\_isetup\_isdecmp.dllFilesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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\Users\Admin\AppData\Local\Temp\is-5UGMN.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-5UGMN.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-MV19F.tmp\is-G3063.tmpFilesize
658KB
MD571c654797ffa6853389354687dde286b
SHA1edd7178ab9043acc4a05dddb9dad972ede2f7748
SHA25697d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04
SHA512d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\yfwArqCoea9.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/1080-105-0x0000000003190000-0x00000000042A7000-memory.dmpFilesize
17.1MB
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memory/1080-62-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1080-89-0x0000000000400000-0x00000000004B3000-memory.dmpFilesize
716KB
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memory/1080-100-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1080-158-0x0000000000400000-0x00000000004B3000-memory.dmpFilesize
716KB
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memory/1080-94-0x0000000003190000-0x00000000042A7000-memory.dmpFilesize
17.1MB
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memory/1080-98-0x0000000000400000-0x00000000004B3000-memory.dmpFilesize
716KB
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memory/1152-159-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/1152-88-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/1152-54-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/1332-113-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB
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memory/1332-126-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB
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memory/1332-121-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1332-157-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB
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memory/1332-104-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB
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memory/1332-101-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB
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memory/1332-99-0x0000000000400000-0x0000000001517000-memory.dmpFilesize
17.1MB