General

  • Target

    a360c27a49a39d2207bbc2e1b2b0452c2003730d009c676eaf524527df59644c

  • Size

    520KB

  • Sample

    221124-af4q3shf3x

  • MD5

    28e70b6d6910dfec97f7f0d26f58dbf0

  • SHA1

    9fe8c76e3c5c5f80e1cc9db02fd130c6a81ec8c0

  • SHA256

    a360c27a49a39d2207bbc2e1b2b0452c2003730d009c676eaf524527df59644c

  • SHA512

    acbb9a2583843e2ed060e850029b7b50e14b12d3a7bd1c22380a5812a15fe7ade4b6ec2c40ba63b5b6d91ecc2b7501f15393882a37ca38993603bf9a7a7072ff

  • SSDEEP

    12288:je5GA6wigctwxaJOri8KuMhEAF/Lc0CTbkwnj3Zz:C5KwTIzJSPK/hHjXoBj3Zz

Score
10/10

Malware Config

Targets

    • Target

      a360c27a49a39d2207bbc2e1b2b0452c2003730d009c676eaf524527df59644c

    • Size

      520KB

    • MD5

      28e70b6d6910dfec97f7f0d26f58dbf0

    • SHA1

      9fe8c76e3c5c5f80e1cc9db02fd130c6a81ec8c0

    • SHA256

      a360c27a49a39d2207bbc2e1b2b0452c2003730d009c676eaf524527df59644c

    • SHA512

      acbb9a2583843e2ed060e850029b7b50e14b12d3a7bd1c22380a5812a15fe7ade4b6ec2c40ba63b5b6d91ecc2b7501f15393882a37ca38993603bf9a7a7072ff

    • SSDEEP

      12288:je5GA6wigctwxaJOri8KuMhEAF/Lc0CTbkwnj3Zz:C5KwTIzJSPK/hHjXoBj3Zz

    Score
    10/10
    • Modifies WinLogon for persistence

    • Modifies visiblity of hidden/system files in Explorer

    • Executes dropped EXE

    • UPX packed file

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

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • 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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Tasks