Overview

overview

10

Static

static

3

4affa384ff...18.exe

windows7-x64

10

4affa384ff...18.exe

windows10-2004-x64

10

Resubmissions

16/10/2024, 02:26

241016-cwyacaxhmd 10

16/10/2024, 02:19

241016-csapwasbjm 10

Analysis

  • max time kernel
    141s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 02:19

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    4affa384ff6ab351df42fc3a02716670_JaffaCakes118.exe

  • Size

    364KB

  • MD5

    4affa384ff6ab351df42fc3a02716670

  • SHA1

    7bebae1ad50fd27c3df625dc3995256f7d8bb8c2

  • SHA256

    4f1e783f68071d95e0b07e1f8b80ed49d0d94a089ae96016b197f846350cfe66

  • SHA512

    802616cac860ed2facd74387475e45ecd5a9e00fb106db801cd0168659fcecb9bb0ca6afb4cfeeca592d24d20c07add685e9a65c3178c839d37850a324906070

  • SSDEEP

    6144:rHDYm7R++Qhm/FxsB+lIB+0ODLawCi308Ki7B4iTK24D1sr:rHr2mwB+g03S5idVK24Zsr

Score
10/10
defense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files\7-Zip\Lang\+REcovER+ewfdo+.txt

Ransom Note
{}_~_~+ -$.-_+$|~~_|| =|_$.**+-~| $+|=*.-=| !!! IMPORTANT INFORMATION !!!! All of your files are encrypted with RSA-4096. More information about the RSA algorythm can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) Decrypting of your files is only possible with the private key and decrypt program, which is on our secret server. To receive your private key follow one of the links: 1. http://88fga.ketteaero.com/9C9DD2E0EAF29921 2. http://2bdfb.spinakrosa.at/9C9DD2E0EAF29921 3. http://uj5nj.onanwhit.com/9C9DD2E0EAF29921 If all of the addresses are not available, follow these steps: 1. Download and install Tor Browser: https://www.torproject.org/download/download-easy.html 2. After a successful installation, run the browser and wait for initialization. 3. Type in the address bar: k7tlx3ghr3m4n2tu.onion/9C9DD2E0EAF29921 4. Follow the instructions on the site. !!! Your personal identification ID: 9C9DD2E0EAF29921 !!! )(*=~_$~+$==-$*~=$$ __$-=-+*
URLs

http://88fga.ketteaero.com/9C9DD2E0EAF29921

http://2bdfb.spinakrosa.at/9C9DD2E0EAF29921

http://uj5nj.onanwhit.com/9C9DD2E0EAF29921

http://k7tlx3ghr3m4n2tu.onion/9C9DD2E0EAF29921

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\4affa384ff6ab351df42fc3a02716670_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4affa384ff6ab351df42fc3a02716670_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Users\Admin\AppData\Local\Temp\4affa384ff6ab351df42fc3a02716670_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4affa384ff6ab351df42fc3a02716670_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1688
      • C:\Users\Admin\Documents\yekoen.exe
        C:\Users\Admin\Documents\yekoen.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:744
        • C:\Users\Admin\Documents\yekoen.exe
          C:\Users\Admin\Documents\yekoen.exe
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:4796
          • C:\Windows\System32\vssadmin.exe
            "C:\Windows\System32\vssadmin.exe" Delete Shadows /All /Quiet
            5⤵
            • Interacts with shadow copies
            PID:2324
          • C:\Windows\SysWOW64\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\+REcovER+ewfdo+.txt
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2688
          • C:\Windows\System32\vssadmin.exe
            "C:\Windows\System32\vssadmin.exe" Delete Shadows /All /Quiet
            5⤵
            • Interacts with shadow copies
            PID:4496
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\DOCUME~1\yekoen.exe >> NUL
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2180
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\4AFFA3~1.EXE >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4364
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\7-Zip\Lang\+REcovER+ewfdo+.png
    Filesize

    37KB

    MD5

    44266ccabaa27f33630248d42a7d20b9

    SHA1

    6483d90b659573e525d8e3e1cbaa8b1fd8184ea6

    SHA256

    ed328ff997249744de73f7b6903da525a017ff17ecb652d3146c04600b4580a9

    SHA512

    ce897b94b34100e69fc5042f05dab13241ada78e6b1e8cea3f00789925e9b12e3ca8d9eedca40267bb3e12b32af6c55927bb66652050153b37ff7c450e106e86

    Download Submit

  • C:\Program Files\7-Zip\Lang\+REcovER+ewfdo+.txt
    Filesize

    1KB

    MD5

    b16d6e2b13f09ce8bd948cd8525304bb

    SHA1

    8e409a168ddc637a572be43b4e2ddf59208b39b7

    SHA256

    eb5b8354d49690b6221ebfed1d3f898b050d967e9647849681a136442b00180a

    SHA512

    0555f44a2064e6c24d2e0f56f901ff30aa891bc96884a4582fc36ece73bca2839427a12ce2b5b9a2d8935798e2a1b265b412cf1e4e690eebcb3625c9d5805eed

    Download Submit

  • C:\Users\Admin\Documents\yekoen.exe
    Filesize

    364KB

    MD5

    4affa384ff6ab351df42fc3a02716670

    SHA1

    7bebae1ad50fd27c3df625dc3995256f7d8bb8c2

    SHA256

    4f1e783f68071d95e0b07e1f8b80ed49d0d94a089ae96016b197f846350cfe66

    SHA512

    802616cac860ed2facd74387475e45ecd5a9e00fb106db801cd0168659fcecb9bb0ca6afb4cfeeca592d24d20c07add685e9a65c3178c839d37850a324906070

    Download Submit

  • memory/744-13-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

    Download

  • memory/1688-6-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/1688-5-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/1688-7-0x0000000074490000-0x00000000744C9000-memory.dmp

    Filesize

    228KB

    Download

  • memory/1688-4-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/1688-14-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/1688-16-0x0000000074490000-0x00000000744C9000-memory.dmp

    Filesize

    228KB

    Download

  • memory/1688-2-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/1704-0-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1704-3-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1704-1-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

    Download

  • memory/4796-23-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-1561-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-21-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-25-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-27-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-20-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-19-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-294-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-1324-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-22-0x0000000074490000-0x00000000744C9000-memory.dmp

    Filesize

    228KB

    Download

  • memory/4796-3762-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6566-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6903-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6904-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6909-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6910-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6913-0x0000000000400000-0x0000000000475000-memory.dmp

    Filesize

    468KB

    Download

  • memory/4796-6916-0x0000000074490000-0x00000000744C9000-memory.dmp

    Filesize

    228KB

    Download