Analysis
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max time kernel
57s -
max time network
59s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
11-04-2023 18:50
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
General
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Target
file.exe
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Size
2.7MB
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MD5
56da98a60b906b22a756798f409b57c1
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SHA1
3ade96a40816aebb558e6f51e2eaba59a5926629
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SHA256
f62fe6646047d7c5a7b445793ab595c3f747c0daba16b2f6c1942f28067b2247
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SHA512
da7477bcc6a583fefb90692ca5a631510391d32cbb4a64546e9c8be68847b3550a842859185ecf6d71054ed41864446ae6dc1a412401d3e40f957a11f5abf5d8
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SSDEEP
49152:zGlJfs+UG6UfiLqT8IscGsQ8/EIh3I5YOrvcDc2AeilbKBRd32WHygU:qlU9UqL48IJdQ8/EIhY5TQgCilb7WSt
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-K7GCR.tmpRec411.exelbcaX0p4.exepid process 1576 is-K7GCR.tmp 836 Rec411.exe 844 lbcaX0p4.exe -
Loads dropped DLL 7 IoCs
Processes:
file.exeis-K7GCR.tmpRec411.exepid process 1768 file.exe 1576 is-K7GCR.tmp 1576 is-K7GCR.tmp 1576 is-K7GCR.tmp 1576 is-K7GCR.tmp 1576 is-K7GCR.tmp 836 Rec411.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-K7GCR.tmpdescription ioc process File created C:\Program Files (x86)\FJVsoftFR\Rec411\unins000.dat is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\is-ANPHP.tmp is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\is-S940J.tmp is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\data\is-N85HT.tmp is-K7GCR.tmp File opened for modification C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\is-H1LSM.tmp is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\is-IEANB.tmp is-K7GCR.tmp File created C:\Program Files (x86)\FJVsoftFR\Rec411\is-KDC4S.tmp is-K7GCR.tmp File opened for modification C:\Program Files (x86)\FJVsoftFR\Rec411\unins000.dat is-K7GCR.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 1724 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Rec411.exepid process 836 Rec411.exe 836 Rec411.exe 836 Rec411.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1724 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exeis-K7GCR.tmpRec411.execmd.exedescription pid process target process PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1768 wrote to memory of 1576 1768 file.exe is-K7GCR.tmp PID 1576 wrote to memory of 836 1576 is-K7GCR.tmp Rec411.exe PID 1576 wrote to memory of 836 1576 is-K7GCR.tmp Rec411.exe PID 1576 wrote to memory of 836 1576 is-K7GCR.tmp Rec411.exe PID 1576 wrote to memory of 836 1576 is-K7GCR.tmp Rec411.exe PID 836 wrote to memory of 844 836 Rec411.exe lbcaX0p4.exe PID 836 wrote to memory of 844 836 Rec411.exe lbcaX0p4.exe PID 836 wrote to memory of 844 836 Rec411.exe lbcaX0p4.exe PID 836 wrote to memory of 844 836 Rec411.exe lbcaX0p4.exe PID 836 wrote to memory of 888 836 Rec411.exe cmd.exe PID 836 wrote to memory of 888 836 Rec411.exe cmd.exe PID 836 wrote to memory of 888 836 Rec411.exe cmd.exe PID 836 wrote to memory of 888 836 Rec411.exe cmd.exe PID 888 wrote to memory of 1724 888 cmd.exe taskkill.exe PID 888 wrote to memory of 1724 888 cmd.exe taskkill.exe PID 888 wrote to memory of 1724 888 cmd.exe taskkill.exe PID 888 wrote to memory of 1724 888 cmd.exe taskkill.exe
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
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C:\Users\Admin\AppData\Local\Temp\is-RTFU7.tmp\is-K7GCR.tmp"C:\Users\Admin\AppData\Local\Temp\is-RTFU7.tmp\is-K7GCR.tmp" /SL4 $70128 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2613035 563202⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe"C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.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}\lbcaX0p4.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "Rec411.exe" /f & erase "C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "Rec411.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)\FJVsoftFR\Rec411\Rec411.exeFilesize
3.0MB
MD52ba6bb5080526019a5bf290e9977c235
SHA1a380e4e6146193c85b91a8f85690fcd2f9fc8aa8
SHA2569f5f4d9148de1496c222c36251e31a4dcc53498d985bfc16014044c9d7361b53
SHA512e5ef9d29c26b6f124ad9f1648d83c9fa225d5af8cc186d4fa1a95c635e3effd71e31e3d48a14bb5e7d4246043c45e7990f671c3317488d4c431915373ca82196
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C:\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exeFilesize
3.0MB
MD52ba6bb5080526019a5bf290e9977c235
SHA1a380e4e6146193c85b91a8f85690fcd2f9fc8aa8
SHA2569f5f4d9148de1496c222c36251e31a4dcc53498d985bfc16014044c9d7361b53
SHA512e5ef9d29c26b6f124ad9f1648d83c9fa225d5af8cc186d4fa1a95c635e3effd71e31e3d48a14bb5e7d4246043c45e7990f671c3317488d4c431915373ca82196
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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-RTFU7.tmp\is-K7GCR.tmpFilesize
659KB
MD557d101722b08967ce53be6109b7f6ccf
SHA1f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA2565b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
SHA51257158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
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C:\Users\Admin\AppData\Local\Temp\is-RTFU7.tmp\is-K7GCR.tmpFilesize
659KB
MD557d101722b08967ce53be6109b7f6ccf
SHA1f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA2565b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
SHA51257158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
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C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\lbcaX0p4.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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\Program Files (x86)\FJVsoftFR\Rec411\Rec411.exeFilesize
3.0MB
MD52ba6bb5080526019a5bf290e9977c235
SHA1a380e4e6146193c85b91a8f85690fcd2f9fc8aa8
SHA2569f5f4d9148de1496c222c36251e31a4dcc53498d985bfc16014044c9d7361b53
SHA512e5ef9d29c26b6f124ad9f1648d83c9fa225d5af8cc186d4fa1a95c635e3effd71e31e3d48a14bb5e7d4246043c45e7990f671c3317488d4c431915373ca82196
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\Users\Admin\AppData\Local\Temp\is-95D9J.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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\Users\Admin\AppData\Local\Temp\is-95D9J.tmp\_isetup\_isdecmp.dllFilesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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\Users\Admin\AppData\Local\Temp\is-95D9J.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-95D9J.tmp\_isetup\_shfoldr.dllFilesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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\Users\Admin\AppData\Local\Temp\is-RTFU7.tmp\is-K7GCR.tmpFilesize
659KB
MD557d101722b08967ce53be6109b7f6ccf
SHA1f62e5f39efbfb03d0ddd822963122eb1945d9f18
SHA2565b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9
SHA51257158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b
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\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\lbcaX0p4.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/836-116-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-112-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-95-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-136-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-96-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-104-0x0000000000400000-0x00000000014FF000-memory.dmpFilesize
17.0MB
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memory/836-108-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1576-103-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/1576-111-0x0000000003180000-0x000000000427F000-memory.dmpFilesize
17.0MB
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memory/1576-94-0x0000000003180000-0x000000000427F000-memory.dmpFilesize
17.0MB
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memory/1576-137-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/1576-87-0x00000000001D0000-0x00000000001D1000-memory.dmpFilesize
4KB
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memory/1768-54-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1768-102-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/1768-138-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB