General

  • Target

    b7afeb4df8894cee353e20551bac817ac76ede24fc6158591333eab312753263

  • Size

    297KB

  • Sample

    220110-ey155adha4

  • MD5

    00ef1d5ef59dd07e21c1e7b656245bf8

  • SHA1

    52b6786f25c4648a1051ade5022fab702a8fc39c

  • SHA256

    b7afeb4df8894cee353e20551bac817ac76ede24fc6158591333eab312753263

  • SHA512

    be6eeb5a1fd70c4a0657b7331e84b11fe8cd1ba360627bdb18f3492711613d748718b45c0f522b117674b9691da4b10cdb0db02a6f7d426fa2687f67d3f6ab06

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Targets

    • Target

      b7afeb4df8894cee353e20551bac817ac76ede24fc6158591333eab312753263

    • Size

      297KB

    • MD5

      00ef1d5ef59dd07e21c1e7b656245bf8

    • SHA1

      52b6786f25c4648a1051ade5022fab702a8fc39c

    • SHA256

      b7afeb4df8894cee353e20551bac817ac76ede24fc6158591333eab312753263

    • SHA512

      be6eeb5a1fd70c4a0657b7331e84b11fe8cd1ba360627bdb18f3492711613d748718b45c0f522b117674b9691da4b10cdb0db02a6f7d426fa2687f67d3f6ab06

    • Panda Stealer Payload

    • PandaStealer

      Panda Stealer is a fork of CollectorProject Stealer written in C++.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks