fickerstealer | 80272e38fc31e515d2255b1bbdc8130e7fdafba43d28f29e58f3239c2b1b93b9

General

Target
0708_1385894024790.doc
Size 877KB
Sample210709-xk32llaqa6
SHA256 80272e38fc31e515d2255b1bbdc8130e7fdafba43d28f29e58f3239c2b1b93b9
MD5 9a5eb27a3ecfe31f06fb1db473916047
SHA1 491c0b561285b4d89bd25b29d76c0d0412f8aedf
SHA512 44a1b3201087d57532b11c9fdd49953a0f2eb881528920e040e8b760af222990e104034421be225f0895ad26964046cef6730af9c91bd12d8cd6de7c51597401
MD5 SHA1 SHA512

Score

10^/10

fickerstealer hancitor downloader infostealer spyware stealer

Malware Config

Extracted

Family

fickerstealer

C2

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	2480	1096	rundll32.exe	67

Blocklisted process makes network request 3 IoCs

flow	pid	Process
31	1484	rundll32.exe
33	1484	rundll32.exe
35	1484	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1484	rundll32.exe
1484	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 1484 set thread context of 3920	1484	rundll32.exe	84

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\{461165D7-A12C-4884-98BD-E58D549810A7}\nimb.dll:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1096	WINWORD.EXE
1096	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1484	rundll32.exe
1484	rundll32.exe
3920	svchost.exe
3920	svchost.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE
1096	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 2976	1096	WINWORD.EXE	75
PID 1096 wrote to memory of 2976	1096	WINWORD.EXE	75
PID 1096 wrote to memory of 2480	1096	WINWORD.EXE	77
PID 1096 wrote to memory of 2480	1096	WINWORD.EXE	77
PID 2480 wrote to memory of 1484	2480	rundll32.exe	78
PID 2480 wrote to memory of 1484	2480	rundll32.exe	78
PID 2480 wrote to memory of 1484	2480	rundll32.exe	78
PID 1484 wrote to memory of 3920	1484	rundll32.exe	84
PID 1484 wrote to memory of 3920	1484	rundll32.exe	84
PID 1484 wrote to memory of 3920	1484	rundll32.exe	84
PID 1484 wrote to memory of 3920	1484	rundll32.exe	84
PID 1484 wrote to memory of 3920	1484	rundll32.exe	84

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\0708_1385894024790.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:1096
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2976
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\roaming\microsoft\templates\niberius.dll,ONOQWPYIEIR
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2480
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" c:\users\admin\appdata\roaming\microsoft\templates\niberius.dll,ONOQWPYIEIR
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\System32\svchost.exe
      4⤵
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      PID:3920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1096-119-0x00007FF861870000-0x00007FF861880000-memory.dmp

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memory/1096-117-0x00007FF861870000-0x00007FF861880000-memory.dmp

Download

memory/1096-118-0x00007FF8828F0000-0x00007FF885413000-memory.dmp

Download

memory/1096-122-0x00007FF87DDF0000-0x00007FF87EEDE000-memory.dmp

Download

memory/1096-123-0x00007FF87B220000-0x00007FF87D115000-memory.dmp

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memory/1096-115-0x00007FF861870000-0x00007FF861880000-memory.dmp

Download

memory/1096-116-0x00007FF861870000-0x00007FF861880000-memory.dmp

Download

memory/1096-114-0x00007FF861870000-0x00007FF861880000-memory.dmp

Download

memory/1484-185-0x0000000003540000-0x0000000003541000-memory.dmp

Download

memory/3920-187-0x0000000000400000-0x0000000000448000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads