Overview

overview

9

Static

static

3

eaa0e773eb...bc.exe

windows7-x64

9

eaa0e773eb...bc.exe

windows10-1703-x64

9

eaa0e773eb...bc.exe

windows10-2004-x64

9

eaa0e773eb...bc.exe

windows11-21h2-x64

9

Resubmissions

13-08-2024 12:55

240813-p5s37svarb 9

03-08-2024 05:56

240803-gng1lsvfnn 9

29-07-2024 17:59

240729-wkpzdawhlc 9

29-07-2024 13:14

240729-qg3heazdpj 9

Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    13-08-2024 12:55

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General

  • Target

    eaa0e773eb593b0046452f420b6db8a47178c09e6db0fa68f6a2d42c3f48e3bc.exe

  • Size

    162KB

  • MD5

    7e851829ee37bc0cf65a268d1d1baa7a

  • SHA1

    672553c79db2a3859a8ea216804d4ff8d2ded538

  • SHA256

    eaa0e773eb593b0046452f420b6db8a47178c09e6db0fa68f6a2d42c3f48e3bc

  • SHA512

    856c6d27669b3123064d85adbc119414f5418f80bbbc9f85f4575df97cf34d1f4ab96fab5442a337ac6a90c076ba5af835f5286cb403acfb3a1e4fc5d0834ebd

  • SSDEEP

    3072:rjvNTtA6pzarOLgSua/iw6kzg3qe1PTjrnFFMVUT6tSTC6D1vtPR1DO66ddJpW3h:r72qe1PTjrnf/KMR1j6df01fiuAP3xFm

Score
9/10
discoveryransomware

Malware Config

Signatures

  • Renames multiple (382) files with added filename extension

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

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

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

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

    discovery
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eaa0e773eb593b0046452f420b6db8a47178c09e6db0fa68f6a2d42c3f48e3bc.exe
    "C:\Users\Admin\AppData\Local\Temp\eaa0e773eb593b0046452f420b6db8a47178c09e6db0fa68f6a2d42c3f48e3bc.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2436

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\README.txt
    Filesize

    423B

    MD5

    7ff94943cdf15452a094e7a8587755b6

    SHA1

    663d82d423fd075b4c87e6428e9c2556c474b88e

    SHA256

    6497c4ac3c3c1dc3fa0405571007a21ae4cecb7cc7cc170c4ad17f683a6118a5

    SHA512

    da91f22c6c9fd4f25a5bc6be74c2dbf1b4d886af97d6dba49de12bef6f9d511b7cd834bae1851a5b4057b665353b2d6b802c5c45076ca5af94827db2ef2028ef

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