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Analysis
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max time kernel
144s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15/05/2024, 23:45
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe
Resource
win7-20240221-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
15 signatures
150 seconds
General
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Target
771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe
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Size
240KB
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MD5
3b8204c94aaa3d5281ec1b5850bcf7f9
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SHA1
6d8526132b9aafc2877f29bac30feb4a55b7c57b
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SHA256
771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389
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SHA512
ea9963001ba90086f12a69e5f40a7c131dbacfb90a51ed22eb2ec8bca0bdce94b60ecb9bfb574c33f44839c74ba09f76874fd7123dc7d78a1a32fde7aaa54be3
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SSDEEP
1536:iq5VwWDjDkdTRqHFOn8tIbbeYiuZIFS9bB:iq5ud9qHFO8Kf3rIIbB
Score
9/10
Malware Config
Signatures
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UPX dump on OEP (original entry point) 12 IoCs
resource yara_rule behavioral1/memory/3048-0-0x0000000000400000-0x0000000000420000-memory.dmp UPX behavioral1/files/0x00320000000144e4-10.dat UPX behavioral1/memory/3048-14-0x0000000010000000-0x000000001000D000-memory.dmp UPX behavioral1/files/0x000b00000001424e-17.dat UPX behavioral1/memory/3048-18-0x0000000000340000-0x0000000000349000-memory.dmp UPX behavioral1/memory/2520-29-0x0000000000400000-0x0000000000409000-memory.dmp UPX behavioral1/memory/3048-28-0x0000000010000000-0x000000001000D000-memory.dmp UPX behavioral1/memory/3048-27-0x0000000000400000-0x0000000000420000-memory.dmp UPX behavioral1/files/0x000700000001471d-30.dat UPX behavioral1/memory/2520-34-0x0000000000320000-0x0000000000340000-memory.dmp UPX behavioral1/memory/2728-43-0x0000000010000000-0x000000001000D000-memory.dmp UPX behavioral1/memory/2728-47-0x0000000000400000-0x0000000000420000-memory.dmp UPX -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x00320000000144e4-10.dat acprotect -
Executes dropped EXE 2 IoCs
pid Process 2520 ctfmen.exe 2728 smnss.exe -
Loads dropped DLL 9 IoCs
pid Process 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 2520 ctfmen.exe 2520 ctfmen.exe 2728 smnss.exe 2460 WerFault.exe 2460 WerFault.exe 2460 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" 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\1 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created C:\Windows\SysWOW64\ctfmen.exe 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\shervans.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\grcopy.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File opened for modification C:\Windows\SysWOW64\grcopy.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\zipfiaq.dll smnss.exe File created C:\Windows\SysWOW64\smnss.exe smnss.exe File opened for modification C:\Windows\SysWOW64\ctfmen.exe 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File opened for modification C:\Windows\SysWOW64\shervans.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\smnss.exe 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\satornas.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File opened for modification C:\Windows\SysWOW64\satornas.dll 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe File created C:\Windows\SysWOW64\zipfi.dll smnss.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\History.txt 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\ipsdeu.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\cs.txt 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\ta.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\pt-br.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad\ea.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\Common Files\Microsoft Shared\ink\ipschs.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\de.txt 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\fy.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsfra.xml 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\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_jpn.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main.xml 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\ipsnld.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\7-Zip\Lang\bn.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\sr-spl.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipshrv.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\ka.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\zh-phonetic.xml 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\sq.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\ink\fsdefinitions\main\base.xml 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\7-Zip\Lang\ast.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\kaa.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ms.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\zh-dayi.xml 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\7-Zip\readme.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsfin.xml smnss.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.VisualElementsManifest.xml smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\hr.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\mng.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipssrb.xml 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\Common Files\Microsoft Shared\Stationery\Peacock.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\br.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\tk.txt 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\7-Zip\Lang\pt.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\auxpad.xml smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\ja-jp.xml 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\ko.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ku.txt smnss.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\base_heb.xml 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\ga.txt smnss.exe File opened for modification C:\Program Files\7-Zip\Lang\ne.txt smnss.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2460 2728 WerFault.exe 29 -
Modifies registry class 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED} 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E6FB5E20-DE35-11CF-9C87-00AA005127ED}\InprocServer32\ = "C:\\Windows\\SysWow64\\shervans.dll" smnss.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2728 smnss.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3048 wrote to memory of 2520 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 28 PID 3048 wrote to memory of 2520 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 28 PID 3048 wrote to memory of 2520 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 28 PID 3048 wrote to memory of 2520 3048 771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe 28 PID 2520 wrote to memory of 2728 2520 ctfmen.exe 29 PID 2520 wrote to memory of 2728 2520 ctfmen.exe 29 PID 2520 wrote to memory of 2728 2520 ctfmen.exe 29 PID 2520 wrote to memory of 2728 2520 ctfmen.exe 29 PID 2728 wrote to memory of 2460 2728 smnss.exe 30 PID 2728 wrote to memory of 2460 2728 smnss.exe 30 PID 2728 wrote to memory of 2460 2728 smnss.exe 30 PID 2728 wrote to memory of 2460 2728 smnss.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.exe"C:\Users\Admin\AppData\Local\Temp\771234a03592f5c15e85cd2eef33d993bb61b957841cc62cbc69b6b474d98389.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:3048 -
C:\Windows\SysWOW64\ctfmen.exectfmen.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2520 -
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:2728 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 8684⤵
- Loads dropped DLL
- Program crash
PID:2460
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
183B
MD5e23704ea2e486d4bd80f936ba2c53e0d
SHA1db777b17998d2adc68df466c89385150cf4bf431
SHA256e245aad1ee26cc41125f22fb818f2a1fd70c556e2535e498e7c05293220d9009
SHA512351a1825f66a0b3aa5269b9898fd8fc51c8188caaf3268a0df20da0202ba87547927866971efd5d3f6422e54fe44c8b5aa72555fdbca5c7e91113e795075909d
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Filesize
4KB
MD567680ac0a58a6119514b6b803f61ad2b
SHA1051ccbbf99629b3d9ed5316459eba7ed6c7a0557
SHA2562d5848c9638c90e3207cea28ff4ea0f56367ff38692c07d12d88c03016a5b82a
SHA512d2988831cfab9545f6c2217aa9065d67ba22e1e7ab413783a3aad3a914a325fdddbe138e8e0ecba14a581a1ac8372aceac2f100eb34c1e17c704a71b13a07390
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Filesize
8KB
MD5dcd6d8c7d08e0f978b861cd6833e7990
SHA17acc5fd2075dd0474186f732037d5dc0dfa334ce
SHA25681551b4422f8c3cfb0024d67510e5c021d32660ece74472a3ab310511e46f02c
SHA512d41931f625cb8aa0a13973e7a059f45075b765a415822b7a6d57ebb70b30cabd6508b9a93ef4ee80ac1f40b8299804de6f261c14f3ee5fbd839a16422fc81185
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Filesize
240KB
MD5702f6a2f43cb92262c03c63de9681f87
SHA1203241ee6c5b7d8b4a5757b81873fb924d8c4336
SHA256089183dc8a5b18314d8470922fc22d6a997e94938a8de3ef42ef9e74ee5592f5
SHA51289954cfa22830cd0c9d7762b4a41304dd546ddbc692b5017e985fefbbd104318cd68524571bd546f64a47526a4a46ba13a05dbd1bf6033e6ea5539c375ca77d8