Overview

overview

10

Static

static

3

74723b8f53...4d.exe

windows7-x64

10

74723b8f53...4d.exe

windows10-2004-x64

10

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDIR/UAC.dll

windows7-x64

3

$PLUGINSDIR/UAC.dll

windows10-2004-x64

3

$PLUGINSDI...fo.dll

windows7-x64

3

$PLUGINSDI...fo.dll

windows10-2004-x64

3

$PLUGINSDI...gs.dll

windows7-x64

3

$PLUGINSDI...gs.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows7-x64

3

$PLUGINSDI...ec.dll

windows10-2004-x64

3

Notepad2.exe

windows7-x64

1

Notepad2.exe

windows10-2004-x64

1

Two.vbs

windows7-x64

8

Two.vbs

windows10-2004-x64

1

patch.exe

windows7-x64

9

patch.exe

windows10-2004-x64

9

setup.exe

windows7-x64

10

setup.exe

windows10-2004-x64

10

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General

  • Target

    74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d

  • Size

    4.5MB

  • Sample

    240624-k4msksvclh

  • MD5

    17caf50a89e0ca1e1e3e85cf7b14c509

  • SHA1

    b4703fe095593e0978964c64db00cc142a0c672b

  • SHA256

    74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d

  • SHA512

    6acc0627291e232e89e5f2b8db73550e134d8cf7c217c4ab55fee1293f9c01537f9d8e13b05c0fa6e6e4143e7de35bdda754b6706ee6cf0be655be9392bd119e

  • SSDEEP

    98304:z27lsFWcG7V95lWEw58NQM8mxozibMW+kt1bPaf1FA1kOf2fBPxO41EEqCI4:zSjvV95oEGoQM8mezibMmdatTO61EEqC

Score
10/10
cryptbotdiscoveryevasionspywarestealer

Malware Config

Extracted

Family

cryptbot

C2

verf04.info

Targets

    • Target

      74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d

    • Size

      4.5MB

    • MD5

      17caf50a89e0ca1e1e3e85cf7b14c509

    • SHA1

      b4703fe095593e0978964c64db00cc142a0c672b

    • SHA256

      74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d

    • SHA512

      6acc0627291e232e89e5f2b8db73550e134d8cf7c217c4ab55fee1293f9c01537f9d8e13b05c0fa6e6e4143e7de35bdda754b6706ee6cf0be655be9392bd119e

    • SSDEEP

      98304:z27lsFWcG7V95lWEw58NQM8mxozibMW+kt1bPaf1FA1kOf2fBPxO41EEqCI4:zSjvV95oEGoQM8mezibMmdatTO61EEqC

    Score
    10/10
    cryptbotdiscoveryevasionspywarestealer

    • CryptBot

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

      spywarestealercryptbot

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Blocklisted process makes network request

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

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

      evasion

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

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

      discovery

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      bf712f32249029466fa86756f5546950

    • SHA1

      75ac4dc4808ac148ddd78f6b89a51afbd4091c2e

    • SHA256

      7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af

    • SHA512

      13f69959b28416e0b8811c962a49309dca3f048a165457051a28a3eb51377dcaf99a15e86d7eee8f867a9e25ecf8c44da370ac8f530eeae7b5252eaba64b96f4

    • SSDEEP

      192:0N2gQuUwXzioj4KALV2upWzVd7q1QDXEbBZ8KxHdGzyS/Kx:rJoiO8V2upW7vQjS/

    Score
    3/10
    behavioral3behavioral4

    • Target

      $PLUGINSDIR/UAC.dll

    • Size

      14KB

    • MD5

      adb29e6b186daa765dc750128649b63d

    • SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

    • SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    • SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • SSDEEP

      192:DiF6v2imI36Op/tGZGfWxdyWHD0I53vLl7WVl8e04IpDlPjs:DGVY6ClGoWxXH75T1WVl83lLs

    Score
    3/10
    behavioral5behavioral6

    • Target

      $PLUGINSDIR/UserInfo.dll

    • Size

      4KB

    • MD5

      c7ce0e47c83525983fd2c4c9566b4aad

    • SHA1

      38b7ad7bb32ffae35540fce373b8a671878dc54e

    • SHA256

      6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae

    • SHA512

      ee9f23ea5210f418d4c559628bbfb3a0f892440bcd5dc4c1901cb8e510078e4481ea8353b262795076a19055e70b88e08fee5fb7e8f35a6f49022096408df20e

    Score
    3/10
    behavioral7behavioral8

    • Target

      $PLUGINSDIR/nsDialogs.dll

    • Size

      9KB

    • MD5

      4ccc4a742d4423f2f0ed744fd9c81f63

    • SHA1

      704f00a1acc327fd879cf75fc90d0b8f927c36bc

    • SHA256

      416133dd86c0dff6b0fcaf1f46dfe97fdc85b37f90effb2d369164a8f7e13ae6

    • SHA512

      790c5eb1f8b297e45054c855b66dfc18e9f3f1b1870559014dbefa3b9d5b6d33a993a9e089202e70f51a55d859b74e8605c6f633386fd9189b6f78941bf1bfdb

    • SSDEEP

      192:SbEunjqjIcESwFlioU3M0LLF/t8t9pKSfOi:SbESjFCw6oWPFl8jfOi

    Score
    3/10
    behavioral10behavioral9

    • Target

      $PLUGINSDIR/nsExec.dll

    • Size

      6KB

    • MD5

      132e6153717a7f9710dcea4536f364cd

    • SHA1

      e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    • SHA256

      d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    • SHA512

      9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

    • SSDEEP

      96:M/SspqrIYxLPEQhThvov3TE4/2Sa5P9QFFYzOx4uF3sbSEI5LP39sQvM:M/QUG7lhvov36S5FcUjliSEI5LuQ

    Score
    3/10
    behavioral11behavioral12

    • Target

      Notepad2.exe

    • Size

      693KB

    • MD5

      b60d390ba42c0109ee38de2e0ca56e1a

    • SHA1

      735a4eb61fe695c9bd2c9961f5fa41ac5a73d833

    • SHA256

      9ac61841c5a9716c04d632f9d107a17e94af751573a50b9d2c1d5ce26e32b477

    • SHA512

      97d17a96a5773f2c8c78a1b985e75314c0ad8a5d9188b6e3d327b1445c04b15b99bd1697b8b12e4f3e56d040e5570f9e7b938e4d67cacca03a947093a082dc24

    • SSDEEP

      12288:6tmI4blkGgFigjLHnrX96Uym8EXwTfEIVXxuFNOFwXi4tjp:6tUtgI2LLX96E8EXwICgKwXi4tjp

    Score
    1/10
    behavioral13behavioral14

    • Target

      Two.vbs

    • Size

      120B

    • MD5

      dce4476454d12f8906cfa1db72722e2d

    • SHA1

      4437a74ae0fcf7a4a636c04b7c0b80880871816a

    • SHA256

      53908a91a2c298fcfd2cd278d4e273ecd55a3b5c81f10775307352aca5e211e8

    • SHA512

      5a13b419813e768be03069332d3f655609221391b7faab5ed8c90ea57a7a26861ed0b5a256619ce9b8e62579e9e3ef9b0e8a37d6a688cb3795c62ea8cd55786f

    Score
    8/10

    • Blocklisted process makes network request

    behavioral15behavioral16

    • Target

      patch.exe

    • Size

      2.1MB

    • MD5

      5da43c1e12289a6ee23c690404359d32

    • SHA1

      d20ddb31c9c1c7c9bfd2c77890fb13608aac2c42

    • SHA256

      554d5c274a401ab86387b8feadaa30f95b9bfa5873434b7592a96b932aebc025

    • SHA512

      4a51da8e684688ce08a9bfc9ce1107ce30865fb171770269402bfa07df35a4db3eb79a8e54892855f1867f995691b5d52591971b8befb5870b9aa22945a40763

    • SSDEEP

      49152:wUUbht1m5u70uMqCOEXDq7imBnb77ZCVqhQI171hxlwB:vUt1mpyp8Xa77ZQK7Rl

    Score
    9/10
    evasion

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

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

      evasion

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral17behavioral18

    • Target

      setup.exe

    • Size

      2.1MB

    • MD5

      3657f6fadee899005c6556c07a890bba

    • SHA1

      bb532f5420c5baacb7b19f508ec29440135c3c74

    • SHA256

      0ab71f45b1e9c6f5eba7ce76b31285a18e7a2851870e551b6aa3dbd8cd756aae

    • SHA512

      3158f42fc30ee5425a252dd976c0d3634b1df124cf364c5790071677e33082343be4f117f05c8cc725cfd566f87229c4d2fdd235849b1b34b13d9a7285324068

    • SSDEEP

      49152:/GxbKmg8Yvmx2jy1u9HWS8XCtMgdm4CnP22FbN7fwqGV7RkV:edKnmxujcStMkmxbFbN7w7C

    Score
    10/10
    cryptbotdiscoveryevasionspywarestealer

    • CryptBot

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

      spywarestealercryptbot

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

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

      evasion

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

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

      discovery

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral19behavioral20

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

6
T1497

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

13
T1012

Virtualization/Sandbox Evasion

6
T1497

System Information Discovery

7
T1082

Lateral Movement

Collection

Data from Local System

4
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks