Overview

overview

10

Static

static

3

3f6f1b87fc...18.exe

windows7-x64

10

3f6f1b87fc...18.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

1.exe

windows7-x64

10

1.exe

windows10-2004-x64

10

Setup1.exe

windows7-x64

9

Setup1.exe

windows10-2004-x64

9

Setup1.vbs

windows7-x64

8

Setup1.vbs

windows10-2004-x64

8

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General

  • Target

    3f6f1b87fc7750df9421200e9e0aa070_JaffaCakes118

  • Size

    4.0MB

  • Sample

    240513-pckw5aea2t

  • MD5

    3f6f1b87fc7750df9421200e9e0aa070

  • SHA1

    11cf49ecbb3b8ba5d76444cefd041435c95bfc47

  • SHA256

    3d0c53b85d752355b9185c5d43a96dc028f2a56e73fb3358dc6a7f0882329e4e

  • SHA512

    9a4e11817771ab6cbb17d2a21857f1f210eafb122df5fd55ae963595aae2263fcd8b6cbfa855f05e26b0e1a2a6f8ca751452cdc9bcdcee0fb44eed6f9763dbc5

  • SSDEEP

    98304:XoUyCR9OdQA9BKQ+SQQUH80pvgsRGVdgTsPC:Xo1H+A9BLM80dwrb6

Score
10/10
cryptbotdiscoveryevasionspywarestealer

Malware Config

Extracted

Family

cryptbot

C2

tuytee16.top

moriiikk08.top

Targets

    • Target

      3f6f1b87fc7750df9421200e9e0aa070_JaffaCakes118

    • Size

      4.0MB

    • MD5

      3f6f1b87fc7750df9421200e9e0aa070

    • SHA1

      11cf49ecbb3b8ba5d76444cefd041435c95bfc47

    • SHA256

      3d0c53b85d752355b9185c5d43a96dc028f2a56e73fb3358dc6a7f0882329e4e

    • SHA512

      9a4e11817771ab6cbb17d2a21857f1f210eafb122df5fd55ae963595aae2263fcd8b6cbfa855f05e26b0e1a2a6f8ca751452cdc9bcdcee0fb44eed6f9763dbc5

    • SSDEEP

      98304:XoUyCR9OdQA9BKQ+SQQUH80pvgsRGVdgTsPC:Xo1H+A9BLM80dwrb6

    Score
    10/10
    cryptbotdiscoveryevasionspywarestealer

    • CryptBot

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

      spywarestealercryptbot

    • CryptBot payload

    • 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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

      1.exe

    • Size

      2.2MB

    • MD5

      4ae318b79250c2969d663dee668f3a27

    • SHA1

      57e5cd1eef257683efc4f82c369739621d8299ce

    • SHA256

      753af3a9e8f98e03f71c700d6913933962a3510ffefb97cd57ccbc20991a98a4

    • SHA512

      a925d50a05e423533a0aec8f552af0e6f55dd3c116bfbbd6ac49ae6c3dd6acd0641ca3dca70499f22a54860c2374f26c2a807f380475290220f74e53c9bf8aab

    • SSDEEP

      49152:JgEDGPCdUgDPLBOLkqZKqwC7s4FHPIr7DhJDwKQLb:DDcC7PLBpEKqV7HdyrDef

    Score
    10/10
    cryptbotdiscoveryevasionspywarestealer

    • CryptBot

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

      spywarestealercryptbot

    • CryptBot payload

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral13behavioral14

    • Target

      Setup1.exe

    • Size

      1.9MB

    • MD5

      e79cf3b82c9bc3fd37c54b29d5986c15

    • SHA1

      a96834689e3454ec7c3bee9872da85ddc900bc0d

    • SHA256

      8972be1f2eb134a22c4d46fad916db5b13c5871dc15a7799246542b6de42170f

    • SHA512

      1a4786d5b258e7bf450b66bedd6c63e8cd162570965449c87224f21a4c114cc0ac880b907787cce184e9374caef819685ae7dea7d7a43a200866f73e1d11edc7

    • SSDEEP

      49152:vTSY0rZ3H04kuvjZPvnyyFKAsVsXSU4IKzq/iuN0:bSLl3H0ngrKZVsXmIKpk0

    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.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    behavioral15behavioral16

    • Target

      Setup1.vbs

    • Size

      126B

    • MD5

      3ffc26d751f79fb801ecbb715885e852

    • SHA1

      f54da1552aabfbf68ef07fa98234a8a1ff789a16

    • SHA256

      8816d2a6adff6e256c6f478c46b283991feeb28dedc384914fe35f14f673d5d6

    • SHA512

      08e00923d92f9141ec09ed420738126883772e359e6fc2e703a293020d0bb42b915d2a9961ba03676ab2ad43d8f4563b46778e119f22007073b1d9f1124c0d24

    Score
    8/10

    • Blocklisted process makes network request

    • Legitimate hosting services abused for malware hosting/C2

    behavioral17behavioral18

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

6
T1497

Subvert Trust Controls

2
T1553

Install Root Certificate

2
T1553.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

16
T1012

Virtualization/Sandbox Evasion

6
T1497

System Information Discovery

11
T1082

Lateral Movement

Collection

Data from Local System

4
T1005

Exfiltration

Command and Control

Web Service

2
T1102

Impact

Resource Development

Reconnaissance

Tasks