General

  • Target

    BDSysLog_i.exe

  • Size

    21.4MB

  • Sample

    240918-swmrlsybpc

  • MD5

    67be97f398c4dc80474cda170b8eea69

  • SHA1

    57433f332234fad239a52d8b25b285845fd71560

  • SHA256

    ec665b0f57c52bd4252a301ca4a8cfd4c4c12cebabce060d31ebf310d246203a

  • SHA512

    33c8c74104679e44481389af1691b0e703a8142dcc517d5b9eb5847c5d59daf7b0bbbccb605851dfe4568b9f87e17d5f5d5ba26fcb84f1015a785d9eac2b0b08

  • SSDEEP

    393216:oaV3CouR5exeuMzkJj53E+NFbVQZbV3UyEXnip0ozmiaPiFo7ffjxiyPM3rtixnr:tV3C7R9o5VFbVwbVoXip0U7RFo3nk3Jq

Malware Config

Targets

    • Target

      BDSysLog_i.exe

    • Size

      21.4MB

    • MD5

      67be97f398c4dc80474cda170b8eea69

    • SHA1

      57433f332234fad239a52d8b25b285845fd71560

    • SHA256

      ec665b0f57c52bd4252a301ca4a8cfd4c4c12cebabce060d31ebf310d246203a

    • SHA512

      33c8c74104679e44481389af1691b0e703a8142dcc517d5b9eb5847c5d59daf7b0bbbccb605851dfe4568b9f87e17d5f5d5ba26fcb84f1015a785d9eac2b0b08

    • SSDEEP

      393216:oaV3CouR5exeuMzkJj53E+NFbVQZbV3UyEXnip0ozmiaPiFo7ffjxiyPM3rtixnr:tV3C7R9o5VFbVwbVoXip0U7RFo3nk3Jq

    • Drops file in Drivers directory

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • 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.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

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

    • Remote Services: SMB/Windows Admin Shares

      Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

    • Checks computer location settings

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

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

5
T1082

Query Registry

6
T1012

Peripheral Device Discovery

1
T1120

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Remote Services

1
T1021

SMB/Windows Admin Shares

1
T1021.002

Collection

Data from Local System

1
T1005

Tasks