Analysis
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max time kernel
142s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 19:20
Static task
static1
Behavioral task
behavioral1
Sample
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe
Resource
win10v2004-20240426-en
General
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Target
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe
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Size
155KB
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MD5
3232708db6260a3593e30d783fd325ea
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SHA1
6d046a780124b33c88cf505cf2b771efd1197164
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SHA256
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7
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SHA512
dac1fdffbb24478dfe72d68744fcfb592c3dfaae204247801646366fd2ffaef2e1cafe7a1ca2a052bbd3261806afcb337544120ccc753d6458e37d32bc713844
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SSDEEP
3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dI:OPjEl6jLiQ1JW+Oy3p/
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule \??\c:\Program Files\eklvz\vejgd.dll acprotect -
Deletes itself 1 IoCs
Processes:
xnafd.exepid process 1920 xnafd.exe -
Executes dropped EXE 2 IoCs
Processes:
xnafd.exevej.exepid process 1920 xnafd.exe 2736 vej.exe -
Loads dropped DLL 7 IoCs
Processes:
cmd.exexnafd.exevej.exepid process 2400 cmd.exe 2400 cmd.exe 1920 xnafd.exe 2736 vej.exe 2736 vej.exe 2736 vej.exe 2736 vej.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
vej.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Linycpy = "c:\\Program Files\\eklvz\\vej.exe \"c:\\Program Files\\eklvz\\vejgd.dll\",SetHandle" vej.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
vej.exedescription ioc process File opened (read-only) \??\a: vej.exe File opened (read-only) \??\g: vej.exe File opened (read-only) \??\j: vej.exe File opened (read-only) \??\m: vej.exe File opened (read-only) \??\o: vej.exe File opened (read-only) \??\s: vej.exe File opened (read-only) \??\w: vej.exe File opened (read-only) \??\b: vej.exe File opened (read-only) \??\e: vej.exe File opened (read-only) \??\k: vej.exe File opened (read-only) \??\n: vej.exe File opened (read-only) \??\r: vej.exe File opened (read-only) \??\y: vej.exe File opened (read-only) \??\h: vej.exe File opened (read-only) \??\i: vej.exe File opened (read-only) \??\p: vej.exe File opened (read-only) \??\t: vej.exe File opened (read-only) \??\l: vej.exe File opened (read-only) \??\q: vej.exe File opened (read-only) \??\u: vej.exe File opened (read-only) \??\v: vej.exe File opened (read-only) \??\x: vej.exe File opened (read-only) \??\z: vej.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
vej.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 vej.exe -
Drops file in Program Files directory 4 IoCs
Processes:
xnafd.exedescription ioc process File opened for modification \??\c:\Program Files\eklvz xnafd.exe File created \??\c:\Program Files\eklvz\vejgd.dll xnafd.exe File created \??\c:\Program Files\eklvz\vej.exe xnafd.exe File opened for modification \??\c:\Program Files\eklvz\vej.exe xnafd.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
vej.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vej.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString vej.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vej.exepid process 2736 vej.exe 2736 vej.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
vej.exedescription pid process Token: SeDebugPrivilege 2736 vej.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exexnafd.exepid process 2148 384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe 1920 xnafd.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.execmd.exexnafd.exedescription pid process target process PID 2148 wrote to memory of 2400 2148 384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe cmd.exe PID 2148 wrote to memory of 2400 2148 384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe cmd.exe PID 2148 wrote to memory of 2400 2148 384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe cmd.exe PID 2148 wrote to memory of 2400 2148 384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe cmd.exe PID 2400 wrote to memory of 2272 2400 cmd.exe PING.EXE PID 2400 wrote to memory of 2272 2400 cmd.exe PING.EXE PID 2400 wrote to memory of 2272 2400 cmd.exe PING.EXE PID 2400 wrote to memory of 2272 2400 cmd.exe PING.EXE PID 2400 wrote to memory of 1920 2400 cmd.exe xnafd.exe PID 2400 wrote to memory of 1920 2400 cmd.exe xnafd.exe PID 2400 wrote to memory of 1920 2400 cmd.exe xnafd.exe PID 2400 wrote to memory of 1920 2400 cmd.exe xnafd.exe PID 1920 wrote to memory of 2736 1920 xnafd.exe vej.exe PID 1920 wrote to memory of 2736 1920 xnafd.exe vej.exe PID 1920 wrote to memory of 2736 1920 xnafd.exe vej.exe PID 1920 wrote to memory of 2736 1920 xnafd.exe vej.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe"C:\Users\Admin\AppData\Local\Temp\384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xnafd.exe "C:\Users\Admin\AppData\Local\Temp\384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:2272
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C:\Users\Admin\AppData\Local\Temp\xnafd.exeC:\Users\Admin\AppData\Local\Temp\\xnafd.exe "C:\Users\Admin\AppData\Local\Temp\384d07bdff2eb0c64b29c4c0b4444aaddc1a7e22a97f89e9219655035dd7e5b7.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1920 -
\??\c:\Program Files\eklvz\vej.exe"c:\Program Files\eklvz\vej.exe" "c:\Program Files\eklvz\vejgd.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\xnafd.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2736
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
128KB
MD557674249a2fa2f033cb6b5bcc6eac23a
SHA1f8810df9e508ed4382739802079ab55e7cc09793
SHA256d9927ab00fc57a6a372f6a05b8d87761127a899bc307adde60a23406e91aadfc
SHA512f3109795962773af267e01c77ac2cb2faee4f610d91c8d348a17e721d0a4d04bd508a5a1941bd1789890549f09e3862099886e3808ee6a8b9b432f16b6b8a1a3
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
155KB
MD5151f03e390e4884d33cd71eb10f45173
SHA1d7da681af85f1a1a111aacd90a84517350b99011
SHA25666959e075fef573b02f73df82a3e50982f047192c2b444763ee191bc041eee6f
SHA5122de349f7749d9fb5d6e5f3c8c43ae9ee2b2e0c2adfb8e895534d160f800fb7e2d449df43d635d053c7cf74c865a515c227a99e3913bd82f5b9dc0077ec16f353