General

  • Target

    fe7fc1c78b51d7a796562e09b0695353

  • Size

    5.1MB

  • Sample

    231220-wjc87acfgp

  • MD5

    fe7fc1c78b51d7a796562e09b0695353

  • SHA1

    2df2d7b7edc5db2a94ad4428a7fd354650bfe49d

  • SHA256

    24803b2f05f7eaa2d0d13c5655987459ef3ee8169d83be8c78683d70de95ddc0

  • SHA512

    5d17f20a5a74aab071c5ee0cc98200d46487734dc899d9bae623ae34e5664aa0b315d9178cfee1b8500a3564197bcdd749e428c9832ba2a749e06d1ed2b22607

  • SSDEEP

    98304:n4jbjW+MvAuGdozQQQYeclr+UiO58O72LHozpAsRS1FsQvsw0R:abjhxgHeclA08OAIzpRo1SN

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/892778422043041873/gYqLiMf-cpigl0WIlIn8gWAFktijHzZBx8-bcU6yxyaLimlCeY0552wy36J78fXd1Na8

Targets

    • Target

      fe7fc1c78b51d7a796562e09b0695353

    • Size

      5.1MB

    • MD5

      fe7fc1c78b51d7a796562e09b0695353

    • SHA1

      2df2d7b7edc5db2a94ad4428a7fd354650bfe49d

    • SHA256

      24803b2f05f7eaa2d0d13c5655987459ef3ee8169d83be8c78683d70de95ddc0

    • SHA512

      5d17f20a5a74aab071c5ee0cc98200d46487734dc899d9bae623ae34e5664aa0b315d9178cfee1b8500a3564197bcdd749e428c9832ba2a749e06d1ed2b22607

    • SSDEEP

      98304:n4jbjW+MvAuGdozQQQYeclr+UiO58O72LHozpAsRS1FsQvsw0R:abjhxgHeclA08OAIzpRo1SN

    • 44Caliber

      An open source infostealer written in C#.

    • Checks computer location settings

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

    • 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.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks