Analysis
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max time kernel
144s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
13/03/2024, 02:57
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe
Resource
win7-20231129-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
14 signatures
150 seconds
General
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Target
bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe
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Size
127KB
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MD5
13cee777aadedf3a6b3a7fc83455f9be
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SHA1
5bfb0649aa20b5e7ed2c1a76b606968afd33384a
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SHA256
bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202
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SHA512
3e283bc98fa71091c721276971d2928916a443a9f3a9a83e6925e267b37239a07482095f29192bea392e5d478904ce5e449a03cd00c6c99ce52d667531a6fa7d
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SSDEEP
3072:vOjjuAt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPp:vzu9OKofHfHTXQLzgvnzHPowYbvrjD/s
Score
7/10
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0009000000016176-10.dat acprotect -
Executes dropped EXE 2 IoCs
pid Process 2180 ctfmen.exe 2052 smnss.exe -
Loads dropped DLL 9 IoCs
pid Process 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 2180 ctfmen.exe 2180 ctfmen.exe 2052 smnss.exe 2548 WerFault.exe 2548 WerFault.exe 2548 WerFault.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ctfmen = "C:\\Windows\\system32\\ctfmen.exe" smnss.exe -
Maps connected drives based on registry 3 TTPs 6 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 smnss.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1 smnss.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created C:\Windows\SysWOW64\shervans.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File opened for modification C:\Windows\SysWOW64\grcopy.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File created C:\Windows\SysWOW64\smnss.exe bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File created C:\Windows\SysWOW64\satornas.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File created C:\Windows\SysWOW64\zipfi.dll smnss.exe File created C:\Windows\SysWOW64\smnss.exe smnss.exe File created C:\Windows\SysWOW64\ctfmen.exe bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File opened for modification C:\Windows\SysWOW64\ctfmen.exe bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File opened for modification C:\Windows\SysWOW64\satornas.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File created C:\Windows\SysWOW64\zipfiaq.dll smnss.exe File created C:\Windows\SysWOW64\grcopy.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe File opened for modification C:\Windows\SysWOW64\shervans.dll bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\Lang\eu.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ru.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\th.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\Alphabet.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_altgr.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Hand Prints.htm smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\README-JDK.html smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\hy.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\kk.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pt.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsrus.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Roses.htm smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\jvm.hprof.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fa.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fur.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\hu.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\webbase.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\el.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\gl.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\tr.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\it.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sk.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-cn.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsesp.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\oskpred\oskpredbase.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsen.xml smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\db\RELEASE-NOTES.html smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fi.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pl.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pt-br.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ext.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsnld.xml smnss.exe File opened for modification C:\Program Files\Internet Explorer\Timeline.cpu.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spl.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\uz.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\ko-kr.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsdeu.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsptg.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Garden.htm smnss.exe File opened for modification C:\Program Files\7-Zip\History.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\mn.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sv.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Green Bubbles.htm smnss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\README.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ca.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\es.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ga.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\pa-in.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\tt.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\osknumpad.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipskor.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad\kor-kor.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\fr.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\si.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spc.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsnor.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\da.txt smnss.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2548 2052 WerFault.exe 29 -
Modifies registry class 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" smnss.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED} bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2052 smnss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1736 wrote to memory of 2180 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 28 PID 1736 wrote to memory of 2180 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 28 PID 1736 wrote to memory of 2180 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 28 PID 1736 wrote to memory of 2180 1736 bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe 28 PID 2180 wrote to memory of 2052 2180 ctfmen.exe 29 PID 2180 wrote to memory of 2052 2180 ctfmen.exe 29 PID 2180 wrote to memory of 2052 2180 ctfmen.exe 29 PID 2180 wrote to memory of 2052 2180 ctfmen.exe 29 PID 2052 wrote to memory of 2548 2052 smnss.exe 30 PID 2052 wrote to memory of 2548 2052 smnss.exe 30 PID 2052 wrote to memory of 2548 2052 smnss.exe 30 PID 2052 wrote to memory of 2548 2052 smnss.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe"C:\Users\Admin\AppData\Local\Temp\bc4ef06e40a3d73ce35f361d3a2e365f8eb88f5fc5b07d653bf20ff1b5c34202.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Windows\SysWOW64\ctfmen.exectfmen.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Windows\SysWOW64\smnss.exeC:\Windows\system32\smnss.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2052 -s 7964⤵
- Loads dropped DLL
- Program crash
PID:2548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
127KB
MD57bf4c6d0e73bf081785f0e02287bf7ea
SHA11476f6a756ae10e5bb18e9c6ace6bd297d8de1dd
SHA25638cef714b2df0856f7c3858eb79c00e76d798be1bf131582b411a2f137cc1321
SHA512655f1ac42c053f1908d9db1276f5e95d44138e4ac9ead5d283027f3d0fe2b20024d62b6de4c8b032611454c566dabb486cc16a3c9ad2bdf7c77375e55199fff8
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Filesize
183B
MD5d8cf517dc91ae756df68da66b79e78c9
SHA1f14c49b65e63b06f7019e47136f13450f12c826a
SHA256035a78468d1ab3fe799ab61a00eca7da413dcde71b2ac8cde2a98552cc8a222e
SHA512b0f24f0bd058a3a7fcf6b5e6833f19a8c6c692fbbdcd58df45ae20d8251d31ebe74e1e742d532f28a326651e68fbed93779e422c13a9f7f66c3614820514d8ea
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Filesize
4KB
MD51d64f5f34dd6c74f19b4a8d864a8ff6e
SHA1f215b57a003871446d7b917896178806705b1887
SHA25633999769e13ef96d37a741f49f4f01b046f318e0c8fb6748435393e83eeda145
SHA512c7b0427dd05ae36d23398806c322ba280e80531539634c59440ee4d3562a441c6f403ec7a5561257e579720a8dea0bde08a5f9118ee0782769f9dc592bf8a872
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Filesize
8KB
MD5521d78e518fdf2adb82547a281af2c5a
SHA1f809c6a183ec8af96b1cb9b767a5cbb7222c0ba2
SHA2564da30c795f4f4ba8cbab1d91178b8d7a9aada63cd7ca6f6255ec1c3335d20e47
SHA51209ae485661945192189cbda73f97f0141c218711bdeb6ad7974241458e94be2bd8999b6f5ada34b52ffe4815307571e4a9de85288cc1ecb8bd121058fd71847e