General

  • Target

    41cea46a44d655ab07e414f88b07260a.exe

  • Size

    170KB

  • Sample

    220923-md4phsgeb3

  • MD5

    41cea46a44d655ab07e414f88b07260a

  • SHA1

    6678722fb1a3889b18d7ba42ec509e1f84521dd3

  • SHA256

    ca81d370ff7e2f2b429d2c1ff109a351f66f5bb9799d34c424aaaac684ed59a4

  • SHA512

    795df19ad7f68328ff69715afc3a2511a3828ac114e81a79ca288c19bb41aff1e05b084c4236aaa6825bdf5c53d88fcae7d7433d69660fff8a30f67ea0b80d30

  • SSDEEP

    3072:v8hLpO65z0fJRIA/M3wxyLiBI6Iz/PkW4n:GLp3AabwqpZ

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Extracted

Family

redline

Botnet

LogsDiller Cloud (Sup: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    56c6f7b9024c076f0a96931453da7e56

Targets

    • Target

      41cea46a44d655ab07e414f88b07260a.exe

    • Size

      170KB

    • MD5

      41cea46a44d655ab07e414f88b07260a

    • SHA1

      6678722fb1a3889b18d7ba42ec509e1f84521dd3

    • SHA256

      ca81d370ff7e2f2b429d2c1ff109a351f66f5bb9799d34c424aaaac684ed59a4

    • SHA512

      795df19ad7f68328ff69715afc3a2511a3828ac114e81a79ca288c19bb41aff1e05b084c4236aaa6825bdf5c53d88fcae7d7433d69660fff8a30f67ea0b80d30

    • SSDEEP

      3072:v8hLpO65z0fJRIA/M3wxyLiBI6Iz/PkW4n:GLp3AabwqpZ

    • Detects Smokeloader packer

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

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

    • 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

    • Checks computer location settings

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Drops file in System32 directory

    • 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

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks