Analysis

  • max time kernel
    100s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-07-2021 14:12

General

  • Target

    0721_7525265361.xls

  • Size

    387KB

  • MD5

    ddfe01c006b3cbf4a6929073e235a8b4

  • SHA1

    59b4c1ec4cb1428b812726c00a29aee9138d46b2

  • SHA256

    39647d1829fcc16d1e20e0b6ccb582b85ff0a37f8530395628c44eda88542ed3

  • SHA512

    48f27d9f21125c49bbd4396b97d9ac69ec363f63c526028fed1734627329d6331332c81a75392807c0d52d1af071bdbee6fa5bce3abe837556d9dcd5885adc1a

Malware Config

Extracted

Family

hancitor

Botnet

1907_hjfsd

C2

http://thervidolown.com/8/forum.php

http://wiltuslads.ru/8/forum.php

http://anithedtatione.ru/8/forum.php

Extracted

Family

fickerstealer

C2

pospvisis.com:80

Signatures

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Hancitor

    Hancitor is downloader used to deliver other malware families.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 3 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 4 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\0721_7525265361.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\omsh.dll,ENHXQBJGBHX
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\System32\svchost.exe
        3⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1212

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\omsh.dll

    MD5

    24190cd699631d16521dfb588b2571a3

    SHA1

    546a86929e82babd0ee6f970d7729e3bf6a14698

    SHA256

    99c4b9083ed613bc38904eec3e37d24d3ca092067ee54e373cc3c8d6339857a6

    SHA512

    fd3123ababc536c2530785d52b3323c1250da0d41e18574ee2877013c6ac033f08157e1221cb3b01d971a3e214eba19bbcc4d29b3ea482cc52b433ecb6eacb21

  • \Users\Admin\AppData\Local\Temp\omsh.dll

    MD5

    24190cd699631d16521dfb588b2571a3

    SHA1

    546a86929e82babd0ee6f970d7729e3bf6a14698

    SHA256

    99c4b9083ed613bc38904eec3e37d24d3ca092067ee54e373cc3c8d6339857a6

    SHA512

    fd3123ababc536c2530785d52b3323c1250da0d41e18574ee2877013c6ac033f08157e1221cb3b01d971a3e214eba19bbcc4d29b3ea482cc52b433ecb6eacb21

  • \Users\Admin\AppData\Local\Temp\omsh.dll

    MD5

    24190cd699631d16521dfb588b2571a3

    SHA1

    546a86929e82babd0ee6f970d7729e3bf6a14698

    SHA256

    99c4b9083ed613bc38904eec3e37d24d3ca092067ee54e373cc3c8d6339857a6

    SHA512

    fd3123ababc536c2530785d52b3323c1250da0d41e18574ee2877013c6ac033f08157e1221cb3b01d971a3e214eba19bbcc4d29b3ea482cc52b433ecb6eacb21

  • \Users\Admin\AppData\Local\Temp\omsh.dll

    MD5

    24190cd699631d16521dfb588b2571a3

    SHA1

    546a86929e82babd0ee6f970d7729e3bf6a14698

    SHA256

    99c4b9083ed613bc38904eec3e37d24d3ca092067ee54e373cc3c8d6339857a6

    SHA512

    fd3123ababc536c2530785d52b3323c1250da0d41e18574ee2877013c6ac033f08157e1221cb3b01d971a3e214eba19bbcc4d29b3ea482cc52b433ecb6eacb21

  • \Users\Admin\AppData\Local\Temp\omsh.dll

    MD5

    24190cd699631d16521dfb588b2571a3

    SHA1

    546a86929e82babd0ee6f970d7729e3bf6a14698

    SHA256

    99c4b9083ed613bc38904eec3e37d24d3ca092067ee54e373cc3c8d6339857a6

    SHA512

    fd3123ababc536c2530785d52b3323c1250da0d41e18574ee2877013c6ac033f08157e1221cb3b01d971a3e214eba19bbcc4d29b3ea482cc52b433ecb6eacb21

  • memory/664-64-0x00000000760B1000-0x00000000760B3000-memory.dmp

    Filesize

    8KB

  • memory/664-63-0x0000000000000000-mapping.dmp

  • memory/664-70-0x0000000000940000-0x0000000000A10000-memory.dmp

    Filesize

    832KB

  • memory/664-71-0x0000000000940000-0x000000000094A000-memory.dmp

    Filesize

    40KB

  • memory/664-72-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/1212-73-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1212-74-0x0000000000401480-mapping.dmp

  • memory/1212-76-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1944-60-0x000000002FE21000-0x000000002FE24000-memory.dmp

    Filesize

    12KB

  • memory/1944-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1944-61-0x0000000071141000-0x0000000071143000-memory.dmp

    Filesize

    8KB

  • memory/1944-77-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB