General

  • Target

    2f37a071bafb2b5b6cbef810b532496b.bin

  • Size

    80.6MB

  • Sample

    230718-bpxvkaff48

  • MD5

    2f37a071bafb2b5b6cbef810b532496b

  • SHA1

    7d555c981d034b2c38b90a1622d919647168924e

  • SHA256

    11eaa4685ef6b2ad1a5a5e0658db510304050f0560337a1a6353355aed768719

  • SHA512

    aee731ba173b4db407221aacebc1b58efd77749ac498d8781f817c5e474c44f3f6d8a4c4267e5e4c2914cfda3f02106030aa0e482b75853def54023eb54b27b5

  • SSDEEP

    1572864:1UPuLP9uHbUl3IMW9Il8vsx+XSDi4fpHsFWJuAlxRD4RxJ/osOgi:1UPKcHbU35SIDAXSmwpHsF6uAlxRsZo/

Malware Config

Extracted

Family

lumma

C2

gstatic-node.io

Extracted

Family

vidar

Version

4.7

Botnet

https://t.me/eagl3z

C2

https://t.me/eagl3z

https://steamcommunity.com/profiles/76561199159550234

Attributes
  • profile_id_v2

    https://t.me/eagl3z

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1788.0 uacq

Extracted

Family

vidar

Version

4.8

Botnet

https://t.me/hwbhjegyuvbgyugge

C2

https://t.me/hwbhjegyuvbgyugge

https://t.me/jhfvykuwgfwekuifwbe

https://t.me/sundayevent

https://steamcommunity.com/profiles/76561198982268531

Attributes
  • profile_id_v2

    https://t.me/hwbhjegyuvbgyugge

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Extracted

Family

systembc

C2

91.103.252.89:4317

91.103.252.57:4317

Targets

    • Target

      Stealer/663F2250.exe

    • Size

      666.6MB

    • MD5

      7ee53007b688c7f40c81160100026f39

    • SHA1

      4ab59105a39b0e2a55db44a2eeae1c0a3634e1b4

    • SHA256

      e8e20414885d7bae4da294b531eca58e4ff8d8918345e1bd741f1f3f29e01f68

    • SHA512

      392d0140a15b7fa4ebbbb3265be841d65a943ab8f732224c7ba7688ca91d439202569df59f4175855898f3a57b8cae0bcd36819133b0d6b01be09ed24b1999b1

    • SSDEEP

      12582912:sQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQyQ2QyQyQyQyQyQyP:snnnnnnnnnnnnnnnnnnnnnnnnrnnnnnP

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Target

      Stealer/BA00054A.exe

    • Size

      33.7MB

    • MD5

      391148ba6a49c21f1561f0b358c4adc5

    • SHA1

      9eaf6f202172a3bdaa5ef751b9e3ed359eb4557a

    • SHA256

      75cd90a2f1d3620498799556ea9b9217aa5048c27db0a31f6f365cf01d713bd0

    • SHA512

      628b51c10748c0635ff3409e14546257ebee44fc45cfc48f1cb51e73d99fa8bbe7cc9e4250a5cecf6059bfbf859aacdbe12670e83103042a6eb346e21f4c4423

    • SSDEEP

      393216:k5zFjww2tS26qtUkzgwhTlGQx2YR+1WPe6vcYEa75Y7sizuQUZ8q5q5XiMusXNRp:krOiY9TlJckPeK3P7+vDqY9VJnp

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

    • Target

      Stealer/C4A17DBA.exe

    • Size

      755KB

    • MD5

      b0517305850d5be8e02a648bb90a3c6d

    • SHA1

      24e75c0ea6b07fd3c4e03c6661ed911632f3e784

    • SHA256

      5c180cd34694c91bc7f4ecaf67d4f462f10254d190d181e02a2a2a7e03d44204

    • SHA512

      17207aec32a872ad024fb2c67e272830454ca69b095c8b43a1db46c842c6e8530b10a3cc9f1c4d596757949d8a2c448bae44d058f614f037cbf93cb036ca26af

    • SSDEEP

      12288:IsjWYqfNTYmessZerchdW7lRA3aDloJZsjudEDT26qh+kB:IsjWYGYnZQchI83mlamGv6a

    Score
    10/10
    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

2
T1130

Modify Registry

2
T1112

Credential Access

Credentials in Files

6
T1081

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

6
T1005

Tasks