General

  • Target

    8786b658cc8531383511362b788f8f1c.bin

  • Size

    374KB

  • Sample

    230309-bxjynsaa54

  • MD5

    6e6293c62717a4b3a32339131a137216

  • SHA1

    9cac56e87f9032b83ee4ec42c2f477dabb22cc27

  • SHA256

    8f136de62431644377a9d55563721cf4bb2b99d5942c2ccc272a28a4eac318c7

  • SHA512

    bf044d64ea959d46ac1c930096aeec84bf5218e2130f4d20a3327db1f1a51c5f55e19397d8a25739c62f429a51aa64fc6f80e0c78e89120fd23611cd5f962c7d

  • SSDEEP

    6144:hHmlzozVYiJqC9PoBGioyaoS0ysGXBW3PgF/G3Omi6RU0040heGlV8v4SmQyoxIc:xm+zH59+XS0ysoBdAO16RU0rGE4TNox/

Malware Config

Extracted

Family

socelars

C2

https://hdbywe.s3.us-west-2.amazonaws.com/sadef33/

Extracted

Family

gcleaner

C2

45.12.253.56

45.12.253.72

45.12.253.98

45.12.253.75

Targets

    • Target

      ad4fe1e40d5bd2e9881400aaaf00b43abdfcfcab35587923bd92067fa34d2059.exe

    • Size

      396KB

    • MD5

      8786b658cc8531383511362b788f8f1c

    • SHA1

      58da30ee843e7d5f51bdacca1ea495b84a7678fd

    • SHA256

      ad4fe1e40d5bd2e9881400aaaf00b43abdfcfcab35587923bd92067fa34d2059

    • SHA512

      d99b28db09067135359de87244a56d039399591d29c0bcf8c7d2163f934a938c4248239d87fcb6e99b9f0bce7132e95d0581ae32e73603af489f8b1444a44f5f

    • SSDEEP

      12288:iQi3Qa6m6URA3PhNOZm2K7YOY5p2tpNnnTIg:iQiA5hhVFf4y3Tp

    • Detects PseudoManuscrypt payload

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • PseudoManuscrypt

      PseudoManuscrypt is a malware Lazarus’s Manuscrypt targeting government organizations and ICS.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Software Discovery

1
T1518

Query Registry

2
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks