Overview

overview

10

Static

static

3

cerber.exe

windows7-x64

10

cryptowall.exe

windows7-x64

9

jigsaw.exe

windows7-x64

10

Locky.exe

windows7-x64

10

131.exe

windows7-x64

1

Matsnu-MBR...3 .exe

windows7-x64

7

027cc450ef...d9.dll

windows7-x64

10

027cc450ef...ju.dll

windows7-x64

10

myguy.hta

windows7-x64

10

svchost.exe

windows7-x64

7

Resubmissions

27-04-2024 00:38

240427-ay3xhafc53 10

20-04-2024 05:28

240420-f6ht7aad5w 10

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General

  • Target

    Ransomware-Samples-main.zip

  • Size

    15.1MB

  • Sample

    240427-ay3xhafc53

  • MD5

    e88a0140466c45348c7b482bb3e103df

  • SHA1

    c59741da45f77ed2350c72055c7b3d96afd4bfc1

  • SHA256

    bab1853454ca6fdd3acd471254101db1b805b601e309a49ec7b4b1fbcfc47ad7

  • SHA512

    2dc9682f4fb6ea520acc505bdbe7671ab7251bf9abd25a5275f0c543a6157d7fa5325b9dce6245e035641ab831d646f0e14f6649f9464f5e97431ab1bf7da431

  • SSDEEP

    393216:+8HaL/eOo2nfFSrjIMVePFmu/GyBSib+JYSWTmZ:LHayONnnBNmkPbDSWm

Score
10/10
cerberjigsawlockymimikatzbootkitdiscoveryevasionpersistenceransomwarespywarestealerupx

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___0PY8D75J_.txt

Family

cerber

Ransom Note
CERBER RANSOMWARE ----- YOUR DOCUMENTS, PH0TOS, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only way to decrypt y0ur files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_READ_THIS_FILE_*) with complete instructions how to decrypt your files. If you cannot find any (*_READ_THIS_FILE_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://p27dokhpz2n7nvgr.onion/BE36-5997-BCED-0446-967C Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://p27dokhpz2n7nvgr.12hygy.top/BE36-5997-BCED-0446-967C 2. http://p27dokhpz2n7nvgr.14ewqv.top/BE36-5997-BCED-0446-967C 3. http://p27dokhpz2n7nvgr.14vvrc.top/BE36-5997-BCED-0446-967C 4. http://p27dokhpz2n7nvgr.129p1t.top/BE36-5997-BCED-0446-967C 5. http://p27dokhpz2n7nvgr.1apgrn.top/BE36-5997-BCED-0446-967C ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/BE36-5997-BCED-0446-967C

http://p27dokhpz2n7nvgr.12hygy.top/BE36-5997-BCED-0446-967C

http://p27dokhpz2n7nvgr.14ewqv.top/BE36-5997-BCED-0446-967C

http://p27dokhpz2n7nvgr.14vvrc.top/BE36-5997-BCED-0446-967C

http://p27dokhpz2n7nvgr.129p1t.top/BE36-5997-BCED-0446-967C

http://p27dokhpz2n7nvgr.1apgrn.top/BE36-5997-BCED-0446-967C

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://french-cooking.com/myguy.exe

Targets

    • Target

      cerber.exe

    • Size

      604KB

    • MD5

      8b6bc16fd137c09a08b02bbe1bb7d670

    • SHA1

      c69a0f6c6f809c01db92ca658fcf1b643391a2b7

    • SHA256

      e67834d1e8b38ec5864cfa101b140aeaba8f1900a6e269e6a94c90fcbfe56678

    • SHA512

      b53d2cc0fe5fa52262ace9f6e6ea3f5ce84935009822a3394bfe49c4d15dfeaa96bfe10ce77ffa93dbf81e5428122aa739a94bc709f203bc346597004fd75a24

    • SSDEEP

      6144:yYghlI5/u8f1mr+4RJ99MpDa52RX5wRDhOOU0qsR:yYKlYmDXEpDHRXP01

    Score
    10/10
    cerberdiscoveryevasionransomware

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

      ransomwarecerber

    • Blocklisted process makes network request

    • Contacts a large (1106) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Modifies Windows Firewall

      evasion

    • Deletes itself

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

    • Target

      cryptowall.bin

    • Size

      240KB

    • MD5

      47363b94cee907e2b8926c1be61150c7

    • SHA1

      ca963033b9a285b8cd0044df38146a932c838071

    • SHA256

      45317968759d3e37282ceb75149f627d648534c5b4685f6da3966d8f6fca662d

    • SHA512

      93dfaafc183360829448887a112dd49c90ec5fe50dcd7c7bbc06c1c8daa206eeea5577f726d906446322c731d0520e93700d5ff9cefd730fba347c72b7325068

    • SSDEEP

      3072:xkeyloECBch6ZCGBGSmHJ0y5lj6jdojK7+MGOXpXx8z3Lp7Yoq:xGlnCIwMpj6ijKfxx8z3F0V

    Score
    9/10
    persistenceransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Drops startup file

    • Adds Run key to start application

      persistence

    • 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 SetThreadContext

    behavioral2

    • Target

      jigsaw

    • Size

      283KB

    • MD5

      2773e3dc59472296cb0024ba7715a64e

    • SHA1

      27d99fbca067f478bb91cdbcb92f13a828b00859

    • SHA256

      3ae96f73d805e1d3995253db4d910300d8442ea603737a1428b613061e7f61e7

    • SHA512

      6ef530b209f8ec459cca66dbf2c31ec96c5f7d609f17fa3b877d276968032fbc6132ea4a45ed1450fb6c5d730a7c9349bf4481e28befaea6b119ec0ded842262

    • SSDEEP

      6144:7fukPLPvucHiQQQ4uuy9ApZbZWxcZt+kTfMLJTOAZiYSXjjeqXus:7fu5cCT7yYlWi8kTfMLJTOAZiYSXjyqX

    Score
    10/10
    jigsawpersistenceransomwarespywarestealer

    • Jigsaw Ransomware

      Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

      ransomwarejigsaw

    • Renames multiple (2017) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral3

    • Target

      Locky

    • Size

      180KB

    • MD5

      b06d9dd17c69ed2ae75d9e40b2631b42

    • SHA1

      b606aaa402bfe4a15ef80165e964d384f25564e4

    • SHA256

      bc98c8b22461a2c2631b2feec399208fdc4ecd1cd2229066c2f385caa958daa3

    • SHA512

      8e54aca4feb51611142c1f2bf303200113604013c2603eea22d72d00297cb1cb40a2ef11f5129989cd14f90e495db79bffd15bd6282ff564c4af7975b1610c1c

    • SSDEEP

      3072:gzWgfLlUc7CIJ1tkZaQyjhOosc8MKi6KDXnLCtyAR0u1cZ86:gdLl4wkZa/UDiD7ukst1H6

    Score
    10/10
    lockyransomware

    • Locky

      Ransomware strain released in 2016, with advanced features like anti-analysis.

      ransomwarelocky
    behavioral4

    • Target

      131.exe

    • Size

      2.3MB

    • MD5

      409d80bb94645fbc4a1fa61c07806883

    • SHA1

      4080bb3a28c2946fd9b72f6b51fe15de74cbb1e1

    • SHA256

      2ecc525177ed52c74ddaaacd47ad513450e85c01f2616bf179be5b576164bf63

    • SHA512

      a99a2f17d9fbb1da9fb993b976df63afa74317666eca46d1f04e7e6e24149547d1ac7210f673caeae9b23a900528ad6ad0a7b98780eff458d3d505029a06e9ba

    • SSDEEP

      49152:XM16E7qUoM5NWX7DP+1egOhcraQzK6j97V:c16/rM5oW1ZrRz

    Score
    1/10
    behavioral5

    • Target

      Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .com_

    • Size

      102KB

    • MD5

      1b2d2a4b97c7c2727d571bbf9376f54f

    • SHA1

      1fc29938ec5c209ba900247d2919069b320d33b0

    • SHA256

      7634433f8fcf4d13fb46d680802e48eeb160e0f51e228cae058436845976381e

    • SHA512

      506fc96423e5e2e38078806591e09a6eb3cf924eb748af528f7315aa0b929890823798a3ef2a5809c14023c3ff8a3db36277bc90c7b099218422aafa4e0c2ee0

    • SSDEEP

      1536:jj+Rj1lGIXKSmE17v97yiqHGMRPtbsLW8/V2k12v1/BDxVyCfCrCAc:jjw6Sf0iqmMnb2W02v3mCf4Nc

    Score
    7/10
    persistenceupx

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral6

    • Target

      027cc450ef5f8c5f653329641ec1fed9.exe

    • Size

      353KB

    • MD5

      71b6a493388e7d0b40c83ce903bc6b04

    • SHA1

      34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

    • SHA256

      027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

    • SHA512

      072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

    • SSDEEP

      6144:y/Bt80VmNTBo/x95ZjAetGDN3VFNq7pC+9OqFoK30b3ni5rdQY/CdUOs2:y/X4NTS/x9jNG+w+9OqFoK323qdQYKUG

    Score
    10/10
    mimikatzbootkitpersistencespywarestealer

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

      mimikatz

    • mimikatz is an open source tool to dump credentials on Windows

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral7

    • Target

      027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745_98STJd8lju.bin

    • Size

      353KB

    • MD5

      71b6a493388e7d0b40c83ce903bc6b04

    • SHA1

      34f917aaba5684fbe56d3c57d48ef2a1aa7cf06d

    • SHA256

      027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745

    • SHA512

      072205eca5099d9269f358fe534b370ff21a4f12d7938d6d2e2713f69310f0698e53b8aff062849f0b2a521f68bee097c1840993825d2a5a3aa8cf4145911c6f

    • SSDEEP

      6144:y/Bt80VmNTBo/x95ZjAetGDN3VFNq7pC+9OqFoK30b3ni5rdQY/CdUOs2:y/X4NTS/x9jNG+w+9OqFoK323qdQYKUG

    Score
    10/10
    mimikatzbootkitpersistencespywarestealer

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

      mimikatz

    • mimikatz is an open source tool to dump credentials on Windows

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral8

    • Target

      myguy.hta

    • Size

      13KB

    • MD5

      0487382a4daf8eb9660f1c67e30f8b25

    • SHA1

      736752744122a0b5ee4b95ddad634dd225dc0f73

    • SHA256

      ee29b9c01318a1e23836b949942db14d4811246fdae2f41df9f0dcd922c63bc6

    • SHA512

      e1e7d81d54efd526139ea8ac792ed2035c8e70f040319c0b65f723431d31077c7a6927553890c99151f2354f51c4020ed94e0e2e5d56386c2fc4828e95869106

    • SSDEEP

      192:ScIsmNvaHz65bP/U/njs3NH0Z0UvDVE6Az6XVHBycT6iLMUpJ2seCYHlfeb:SPXTmnjs3BU9A27BNLMUTb

    Score
    10/10

    • Blocklisted process makes network request

    behavioral9

    • Target

      svchost.exe

    • Size

      704KB

    • MD5

      d2ec63b63e88ece47fbaab1ca22da1ef

    • SHA1

      dd52fcc042a44a2af9e43c15a8e520b54128cdc8

    • SHA256

      e5c643f1d8ecc0fd739d0bbe4a1c6c7de2601d86ab0fff74fd89c40908654be5

    • SHA512

      89d9e63d5f3b34be3d25317933031815a42c039fbee30ce8c86f8b1b7c6ca9ccfc8731da99b9246381a2c05a95ada423f4944ff72111eb0451a44e9dcb3e053e

    • SSDEEP

      12288:rue4X2Uz0DsetgxLdsCHvX8XYJWs6XS1bFLDw1P86jZpMV7uikFg:v+2UzSgxLdsCHmQb6XSbFLDs06jZulus

    Score
    7/10

    • Drops startup file

    behavioral10

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

2
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Pre-OS Boot

2
T1542

Bootkit

2
T1542.003

Scheduled Task/Job

2
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

3
T1547.001

Scheduled Task/Job

2
T1053

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

6
T1112

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Pre-OS Boot

2
T1542

Bootkit

2
T1542.003

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Network Service Discovery

1
T1046

System Information Discovery

5
T1082

Query Registry

1
T1012

Remote System Discovery

1
T1018

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Inhibit System Recovery

2
T1490

Resource Development

Reconnaissance

Tasks