Analysis
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max time kernel
144s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
16/10/2024, 01:35
Static task
static1
Behavioral task
behavioral1
Sample
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
Resource
win10v2004-20241007-en
General
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Target
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe
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Size
94KB
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MD5
235126a6fcdd952ce3adf837e72455b7
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SHA1
05553713fd87ae701ccb8d92b1a07257659eb970
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SHA256
9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab
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SHA512
2e4e3b2482031eec7d345899743541cfca0b5936e7244c10f5352fa8b2b26ae3044a52c916031e666740af972c405adb93f4906368f7e6b4fbc5a0791ec948fe
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SSDEEP
1536:TSSABNx6vb4RoI47zzzzzzzzzvfxzVzNrzzzgzzzzzzzzzzzzzzzz6zzzdzzzzlB:eSABNx6vb4RoI4pyjHYLhal01UoPX+h0
Malware Config
Signatures
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Blocklisted process makes network request 4 IoCs
flow pid Process 5 2580 rundll32.exe 6 2580 rundll32.exe 7 2580 rundll32.exe 8 2580 rundll32.exe -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000900000001659b-7.dat acprotect -
Deletes itself 1 IoCs
pid Process 2428 umqyn.exe -
Executes dropped EXE 1 IoCs
pid Process 2428 umqyn.exe -
Loads dropped DLL 4 IoCs
pid Process 2580 rundll32.exe 2580 rundll32.exe 2580 rundll32.exe 2580 rundll32.exe -
Reads user/profile data of web browsers 3 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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\tktni\\cewymhr.dll\",DoVirusScan" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\w: rundll32.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.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language umqyn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1040 cmd.exe 388 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 388 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2580 rundll32.exe 2580 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2580 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2244 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 2428 umqyn.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 2244 wrote to memory of 1040 2244 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 28 PID 2244 wrote to memory of 1040 2244 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 28 PID 2244 wrote to memory of 1040 2244 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 28 PID 2244 wrote to memory of 1040 2244 9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe 28 PID 1040 wrote to memory of 388 1040 cmd.exe 30 PID 1040 wrote to memory of 388 1040 cmd.exe 30 PID 1040 wrote to memory of 388 1040 cmd.exe 30 PID 1040 wrote to memory of 388 1040 cmd.exe 30 PID 1040 wrote to memory of 2428 1040 cmd.exe 31 PID 1040 wrote to memory of 2428 1040 cmd.exe 31 PID 1040 wrote to memory of 2428 1040 cmd.exe 31 PID 1040 wrote to memory of 2428 1040 cmd.exe 31 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32 PID 2428 wrote to memory of 2580 2428 umqyn.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:388
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\??\c:\umqyn.exec:\umqyn.exe "C:\Users\Admin\AppData\Local\Temp\9967333e71cb9d20c01e54504586c51651cf090306eb21dba9c477f209ea61ab.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2428 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\tktni\cewymhr.dll",DoVirusScan c:\umqyn.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2580
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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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
50KB
MD5cbfc06794d16ace6adf42210183fc1b9
SHA174fc68a2af225b0aca954b3684940747511013c5
SHA256b2d21c40c5bfc0f7695945946fa1cdd4eaf2f66a8391ddde6307c5f765fbf525
SHA512181dbe8b63e28a81cb8e0b7240df8745da350e1ab433b157b8b4fd36aa10f0782e807c09563bcffe37cfe64aa1b514b2cc1f179fbcba422d96867179d88e13c9
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Filesize
94KB
MD5e368bc1abdf9ace70440ca3828cb7105
SHA1de7e6e97f84b383e118a38c902324b4fa4c0135b
SHA256bf537b8dc07eeb08a8761e5d3cad3ac0fd68ea5cd20e35546194a5b4b76c7dce
SHA51235a36ae562eb390b555d7c4cac4d89fc6400aa0ff0332a81f086f2230ef8378065b77234bbbd22a65151cf1cbbaea542b5c5fc9bcb867b603cef62063c95f1cf