Analysis

  • max time kernel
    151s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25/06/2022, 02:25

General

  • Target

    4e459e942437ee7a6b767925f7cfaac795f9049c71b9211392061b2f4338dbfb.exe

  • Size

    4.2MB

  • MD5

    6f2f7f2ce0ef33d170cf9ee67265770d

  • SHA1

    beb2c4bd2ab65ed67028a1a8db92750c624d7eb8

  • SHA256

    4e459e942437ee7a6b767925f7cfaac795f9049c71b9211392061b2f4338dbfb

  • SHA512

    11e01409e4038e812f5351753f498e3a179d7a8e209f7d652682198796fab226406e4b613a669cac379513d689d0f920050d7a7e6a362470c5599169481b00fc

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4e459e942437ee7a6b767925f7cfaac795f9049c71b9211392061b2f4338dbfb.exe
    "C:\Users\Admin\AppData\Local\Temp\4e459e942437ee7a6b767925f7cfaac795f9049c71b9211392061b2f4338dbfb.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Program Files (x86)\Sir\Xd\Setup.exe
      "C:\Program Files (x86)\Sir\Xd\Setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:1996
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Sir\Xd\ipras.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      PID:1632
    • C:\Program Files (x86)\Sir\Xd\Setupres.exe
      "C:\Program Files (x86)\Sir\Xd\Setupres.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:1644

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Sir\Xd\Setup.exe

    Filesize

    2.2MB

    MD5

    112612c1ceaf7965ed7beb7d2341e0e2

    SHA1

    4a2e3df41d122e0ab2e4d8b774e806554f4a6296

    SHA256

    b5ee04d73e9cfa30a1719d2cbf9d17e76a5c8dc6149f9bb571365d5ee5b00072

    SHA512

    5ebf8b9f98497c35629d6924e03ca5d7661fea4ff5ae46ae56c56111f38d3af2ad51818d4363985424991e53663d1b96c366d84cbeb34dbecf641e7d09c1eeba

  • C:\Program Files (x86)\Sir\Xd\Setup.exe

    Filesize

    2.2MB

    MD5

    112612c1ceaf7965ed7beb7d2341e0e2

    SHA1

    4a2e3df41d122e0ab2e4d8b774e806554f4a6296

    SHA256

    b5ee04d73e9cfa30a1719d2cbf9d17e76a5c8dc6149f9bb571365d5ee5b00072

    SHA512

    5ebf8b9f98497c35629d6924e03ca5d7661fea4ff5ae46ae56c56111f38d3af2ad51818d4363985424991e53663d1b96c366d84cbeb34dbecf641e7d09c1eeba

  • C:\Program Files (x86)\Sir\Xd\Setupres.exe

    Filesize

    2.0MB

    MD5

    e75b71aa66f4177b62485503809ec837

    SHA1

    8203e06f29d51c25b2af48c62fa6074c58958660

    SHA256

    f2ac71dbbc1ec524d93811dd4cd64edc5c836be379fa9cfd565af7ba45cfe80c

    SHA512

    2761d0880e60a87b9cca31cd533f626b218ddf9939dbd751cc468904500d19a59e63c09af0f44ede21bbf8a416ec05b08ac7f6629cf7de1072323b349d9df2f7

  • C:\Program Files (x86)\Sir\Xd\Setupres.exe

    Filesize

    2.0MB

    MD5

    e75b71aa66f4177b62485503809ec837

    SHA1

    8203e06f29d51c25b2af48c62fa6074c58958660

    SHA256

    f2ac71dbbc1ec524d93811dd4cd64edc5c836be379fa9cfd565af7ba45cfe80c

    SHA512

    2761d0880e60a87b9cca31cd533f626b218ddf9939dbd751cc468904500d19a59e63c09af0f44ede21bbf8a416ec05b08ac7f6629cf7de1072323b349d9df2f7

  • C:\Program Files (x86)\Sir\Xd\ipras.vbs

    Filesize

    126B

    MD5

    b802ff9244875f69db2fae0f78e92b10

    SHA1

    49385a89cd575894a29fbda969b99cc1f5cf8076

    SHA256

    a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8

    SHA512

    609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e

  • \Program Files (x86)\Sir\Xd\Setup.exe

    Filesize

    2.2MB

    MD5

    112612c1ceaf7965ed7beb7d2341e0e2

    SHA1

    4a2e3df41d122e0ab2e4d8b774e806554f4a6296

    SHA256

    b5ee04d73e9cfa30a1719d2cbf9d17e76a5c8dc6149f9bb571365d5ee5b00072

    SHA512

    5ebf8b9f98497c35629d6924e03ca5d7661fea4ff5ae46ae56c56111f38d3af2ad51818d4363985424991e53663d1b96c366d84cbeb34dbecf641e7d09c1eeba

  • \Program Files (x86)\Sir\Xd\Setup.exe

    Filesize

    2.2MB

    MD5

    112612c1ceaf7965ed7beb7d2341e0e2

    SHA1

    4a2e3df41d122e0ab2e4d8b774e806554f4a6296

    SHA256

    b5ee04d73e9cfa30a1719d2cbf9d17e76a5c8dc6149f9bb571365d5ee5b00072

    SHA512

    5ebf8b9f98497c35629d6924e03ca5d7661fea4ff5ae46ae56c56111f38d3af2ad51818d4363985424991e53663d1b96c366d84cbeb34dbecf641e7d09c1eeba

  • \Program Files (x86)\Sir\Xd\Setup.exe

    Filesize

    2.2MB

    MD5

    112612c1ceaf7965ed7beb7d2341e0e2

    SHA1

    4a2e3df41d122e0ab2e4d8b774e806554f4a6296

    SHA256

    b5ee04d73e9cfa30a1719d2cbf9d17e76a5c8dc6149f9bb571365d5ee5b00072

    SHA512

    5ebf8b9f98497c35629d6924e03ca5d7661fea4ff5ae46ae56c56111f38d3af2ad51818d4363985424991e53663d1b96c366d84cbeb34dbecf641e7d09c1eeba

  • \Program Files (x86)\Sir\Xd\Setupres.exe

    Filesize

    2.0MB

    MD5

    e75b71aa66f4177b62485503809ec837

    SHA1

    8203e06f29d51c25b2af48c62fa6074c58958660

    SHA256

    f2ac71dbbc1ec524d93811dd4cd64edc5c836be379fa9cfd565af7ba45cfe80c

    SHA512

    2761d0880e60a87b9cca31cd533f626b218ddf9939dbd751cc468904500d19a59e63c09af0f44ede21bbf8a416ec05b08ac7f6629cf7de1072323b349d9df2f7

  • \Program Files (x86)\Sir\Xd\Setupres.exe

    Filesize

    2.0MB

    MD5

    e75b71aa66f4177b62485503809ec837

    SHA1

    8203e06f29d51c25b2af48c62fa6074c58958660

    SHA256

    f2ac71dbbc1ec524d93811dd4cd64edc5c836be379fa9cfd565af7ba45cfe80c

    SHA512

    2761d0880e60a87b9cca31cd533f626b218ddf9939dbd751cc468904500d19a59e63c09af0f44ede21bbf8a416ec05b08ac7f6629cf7de1072323b349d9df2f7

  • \Program Files (x86)\Sir\Xd\Setupres.exe

    Filesize

    2.0MB

    MD5

    e75b71aa66f4177b62485503809ec837

    SHA1

    8203e06f29d51c25b2af48c62fa6074c58958660

    SHA256

    f2ac71dbbc1ec524d93811dd4cd64edc5c836be379fa9cfd565af7ba45cfe80c

    SHA512

    2761d0880e60a87b9cca31cd533f626b218ddf9939dbd751cc468904500d19a59e63c09af0f44ede21bbf8a416ec05b08ac7f6629cf7de1072323b349d9df2f7

  • \Users\Admin\AppData\Local\Temp\nsy5B5B.tmp\UAC.dll

    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • \Users\Admin\AppData\Local\Temp\nsy5B5B.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • memory/1000-67-0x0000000002680000-0x0000000002BB7000-memory.dmp

    Filesize

    5.2MB

  • memory/1000-86-0x0000000002700000-0x0000000002C1C000-memory.dmp

    Filesize

    5.1MB

  • memory/1000-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

    Filesize

    8KB

  • memory/1644-103-0x0000000000400000-0x000000000091C000-memory.dmp

    Filesize

    5.1MB

  • memory/1644-90-0x0000000000400000-0x000000000091C000-memory.dmp

    Filesize

    5.1MB

  • memory/1644-91-0x00000000013C0000-0x00000000018DC000-memory.dmp

    Filesize

    5.1MB

  • memory/1644-94-0x00000000013C0000-0x00000000018DC000-memory.dmp

    Filesize

    5.1MB

  • memory/1644-95-0x0000000000400000-0x000000000091C000-memory.dmp

    Filesize

    5.1MB

  • memory/1644-102-0x0000000000400000-0x000000000091C000-memory.dmp

    Filesize

    5.1MB

  • memory/1996-85-0x0000000074B10000-0x0000000074C7F000-memory.dmp

    Filesize

    1.4MB

  • memory/1996-71-0x0000000077D00000-0x0000000077E80000-memory.dmp

    Filesize

    1.5MB

  • memory/1996-80-0x0000000074B11000-0x0000000074B13000-memory.dmp

    Filesize

    8KB

  • memory/1996-74-0x0000000073FA1000-0x0000000073FA3000-memory.dmp

    Filesize

    8KB

  • memory/1996-73-0x00000000744B1000-0x00000000744B3000-memory.dmp

    Filesize

    8KB

  • memory/1996-72-0x0000000000BC0000-0x00000000010F7000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-92-0x00000000747B1000-0x00000000747B3000-memory.dmp

    Filesize

    8KB

  • memory/1996-70-0x0000000001100000-0x0000000001637000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-96-0x0000000001100000-0x0000000001637000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-98-0x0000000000BC0000-0x00000000010F7000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-99-0x0000000001100000-0x0000000001637000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-100-0x0000000000BC0000-0x00000000010F7000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-101-0x0000000074B10000-0x0000000074C7F000-memory.dmp

    Filesize

    1.4MB

  • memory/1996-69-0x0000000001100000-0x0000000001637000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-68-0x0000000000BC0000-0x00000000010F7000-memory.dmp

    Filesize

    5.2MB