fickerstealer | 37965d058a349b0f619051664bb9c703dea11f097a0f37ad4a9d924cb1e76101

Analysis

max time kernel
118s
max time network
144s
platform
windows10_x64
resource
win10v20210408
submitted
12/07/2021, 21:25

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General

Target
0712_2172200614.doc
Size 915KB
Sample210712-sp124ack9e
SHA256 37965d058a349b0f619051664bb9c703dea11f097a0f37ad4a9d924cb1e76101
MD5 9708027fa7d2e96f94a60571683af8a9
SHA1 f96c0ea735be207546be55a563621a5a1404a85b
SHA512 4c54cecd95f4ff7d5b3fb36fca2e1d921ffd3ae604eae9a6c3f2e71dff12c835d80b86ad4029046dc57eedded920df03924aa98f6e929a83b525f8caeed8cb09
MD5 SHA1 SHA512

Score

10^/10

fickerstealer hancitor 1207_cvefop downloader infostealer spyware stealer

Malware Config

Extracted

Family

hancitor

Botnet

1207_cvefop

http://trictuatiove.com/8/forum.php
http://olinsartain.ru/8/forum.php
http://factoothfand.ru/8/forum.php

Extracted

Family

fickerstealer

pospvisis.com:80

Signatures

Fickerstealer
Ficker is an infostealer written in Rust and ASM.
infostealer fickerstealer
Hancitor
Hancitor is downloader used to deliver other malware families.
downloader hancitor

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	3732	900	rundll32.exe	67

Blocklisted process makes network request 3 IoCs

flow	pid	Process
31	3888	rundll32.exe
33	3888	rundll32.exe
35	3888	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3888	rundll32.exe
3888	rundll32.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

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

flow	ioc
30	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3888 set thread context of 1920	3888	rundll32.exe	85

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{A03E4E3C-FD59-458C-86AD-177CFBCFD9E9}\ter.dll:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
900	WINWORD.EXE
900	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3888	rundll32.exe
3888	rundll32.exe
1920	svchost.exe
1920	svchost.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE
900	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1324	900	WINWORD.EXE	76
PID 900 wrote to memory of 1324	900	WINWORD.EXE	76
PID 900 wrote to memory of 3732	900	WINWORD.EXE	77
PID 900 wrote to memory of 3732	900	WINWORD.EXE	77
PID 3732 wrote to memory of 3888	3732	rundll32.exe	79
PID 3732 wrote to memory of 3888	3732	rundll32.exe	79
PID 3732 wrote to memory of 3888	3732	rundll32.exe	79
PID 3888 wrote to memory of 1920	3888	rundll32.exe	85
PID 3888 wrote to memory of 1920	3888	rundll32.exe	85
PID 3888 wrote to memory of 1920	3888	rundll32.exe	85
PID 3888 wrote to memory of 1920	3888	rundll32.exe	85
PID 3888 wrote to memory of 1920	3888	rundll32.exe	85

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0712_2172200614.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1324
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\roaming\microsoft\templates\ier.dll,HINYYIMIVRX
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3732
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\roaming\microsoft\templates\ier.dll,HINYYIMIVRX
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3888
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\System32\svchost.exe
      4⤵
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      PID:1920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/900-384-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-118-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-119-0x00007FFD4D020000-0x00007FFD4FB43000-memory.dmp

Download

memory/900-122-0x00007FFD45AB0000-0x00007FFD46B9E000-memory.dmp

Download

memory/900-123-0x00007FFD43BB0000-0x00007FFD45AA5000-memory.dmp

Download

memory/900-386-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-117-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-385-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-114-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-116-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-115-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/900-383-0x00007FFD2ADC0000-0x00007FFD2ADD0000-memory.dmp

Download

memory/1920-311-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/1920-315-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/3888-310-0x0000000000550000-0x0000000000551000-memory.dmp

Download

memory/3888-309-0x0000000000A01000-0x0000000000A34000-memory.dmp

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memory/3888-308-0x0000000000A00000-0x0000000000A0A000-memory.dmp

Download

memory/3888-296-0x0000000000A00000-0x0000000000AE8000-memory.dmp

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