Analysis

  • max time kernel
    141s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-03-2023 04:15

General

  • Target

    b593b06c046cac84d19903bb4f253da8cbd6bfa2a0601459c15f0f7c0d1c42c9.exe

  • Size

    682KB

  • MD5

    7562211a68b8c6410156a404fdde44da

  • SHA1

    3a102d31ea2e1056712de3e8a195dae6cb986d03

  • SHA256

    b593b06c046cac84d19903bb4f253da8cbd6bfa2a0601459c15f0f7c0d1c42c9

  • SHA512

    c6feca2a099c6a511bf9721fc334569b313f6d57ed8dec38a64c7ce28b3fea8450ba98fe15d970fe4b9b606a2ecf873d0012dd45a29a61a8f5562b7cc45ece49

  • SSDEEP

    12288:ISYfFx0mgDpkZLtU5K3+9KpdS+grSSHnaoRB4JyVDMXt:n4FxJtZxU5BCdS+vkr1VDM

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 4 IoCs
  • Gh0st RAT payload 3 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b593b06c046cac84d19903bb4f253da8cbd6bfa2a0601459c15f0f7c0d1c42c9.exe
    "C:\Users\Admin\AppData\Local\Temp\b593b06c046cac84d19903bb4f253da8cbd6bfa2a0601459c15f0f7c0d1c42c9.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4436

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Public\Documents\sjsw.log
    Filesize

    252B

    MD5

    f7dadd30ab090be2a0cb27d242d750cf

    SHA1

    5e9a51e6b47267927a535fb4ab323d63e615cdd4

    SHA256

    6437c80faf9e50bcc9b54872e4ee23d080e97e2cd4dd9519c03908ba5ee483a4

    SHA512

    78ce9d7c4ecaffacb77cf6e5215e34ad3b661e68d4c29fe38e981e5885db0fc931805d69fd540fa6b96a921793fd477d1decfa6eafd64d24e7e265e06e82e7e5

  • C:\Users\Public\Documents\yrrgt.dll
    Filesize

    2KB

    MD5

    7943effe67a4647e06def2348949020e

    SHA1

    eabd561f0639a975de259633f63896d82c3f878d

    SHA256

    3fac47db92d581b2daef7a4f9493be2fe441041e5158101d80873d05808d5cfa

    SHA512

    c9db1962e7457c94426c2a5c7f439736697d4399db6982c45357459d58805daa4a9d297912135488b6990e265ffa59d687fd5ba43717aab46ccc212083ef5003

  • memory/4436-163-0x0000000003F40000-0x0000000004032000-memory.dmp
    Filesize

    968KB

  • memory/4436-165-0x0000000010000000-0x0000000010017000-memory.dmp
    Filesize

    92KB

  • memory/4436-134-0x00000000005F0000-0x00000000005F3000-memory.dmp
    Filesize

    12KB

  • memory/4436-160-0x0000000003F40000-0x0000000004032000-memory.dmp
    Filesize

    968KB

  • memory/4436-161-0x0000000003F40000-0x0000000004032000-memory.dmp
    Filesize

    968KB

  • memory/4436-162-0x0000000000400000-0x0000000000427000-memory.dmp
    Filesize

    156KB

  • memory/4436-133-0x0000000000400000-0x00000000005AF000-memory.dmp
    Filesize

    1.7MB

  • memory/4436-140-0x0000000003190000-0x00000000031D8000-memory.dmp
    Filesize

    288KB

  • memory/4436-164-0x0000000010001000-0x000000001000F000-memory.dmp
    Filesize

    56KB

  • memory/4436-167-0x0000000000400000-0x0000000000427000-memory.dmp
    Filesize

    156KB

  • memory/4436-174-0x0000000010000000-0x0000000010003000-memory.dmp
    Filesize

    12KB

  • memory/4436-179-0x0000000003190000-0x00000000031D8000-memory.dmp
    Filesize

    288KB

  • memory/4436-180-0x0000000003190000-0x00000000031D8000-memory.dmp
    Filesize

    288KB

  • memory/4436-181-0x0000000000400000-0x0000000000427000-memory.dmp
    Filesize

    156KB

  • memory/4436-182-0x0000000003190000-0x00000000031D8000-memory.dmp
    Filesize

    288KB

  • memory/4436-197-0x0000000000400000-0x00000000005AF000-memory.dmp
    Filesize

    1.7MB