MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d71cbac3efcc3b8b5f2d13379cd6ac287f57d440c957cc099da081b6f01cff01. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Fabookie


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments 1

SHA256 hash: d71cbac3efcc3b8b5f2d13379cd6ac287f57d440c957cc099da081b6f01cff01
SHA3-384 hash: 1b4be27b4dc53a83bf416d932ea1f0c7be9aab8eb82c46b5e5a810581990ec802dbace744d401864d00fd314ad9800ac
SHA1 hash: 5fdaa688aa7484872994433516052ad6dbc26fd3
MD5 hash: a580ca0964959df56426827147d0d579
humanhash: carolina-neptune-uniform-blue
File name:a580ca0964959df56426827147d0d579
Download: download sample
Signature Fabookie
File size:4'060'672 bytes
First seen:2022-09-14 01:09:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 98304:Ju7XGzVtjidpccSAOgBzPFMYOkAMre118y:J5zVxiz1zvOak8
Threatray 14'273 similar samples on MalwareBazaar
TLSH T1A61623F92F57185BF1879F7794A2F43C4C1C06EA9CC3C6A9634C3E6AB07A241910DD6A
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c9dcf6c2d4d8f102 (1 x Fabookie)
Reporter zbetcheckin
Tags:32 exe Fabookie

Intelligence


File Origin
# of uploads :
1
# of downloads :
310
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file in the %AppData% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Creating a window
Adding an access-denied ACE
Reading critical registry keys
Sending an HTTP POST request
Unauthorized injection to a recently created process
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a browser process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm mokes packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Fabookie
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Detected VMProtect packer
Drops PE files to the startup folder
Found evasive API chain (may stop execution after checking mutex)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses ping.exe to check the status of other devices and networks
Writes to foreign memory regions
Yara detected Fabookie
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 702465 Sample: Htz6J2rVzW.exe Startdate: 14/09/2022 Architecture: WINDOWS Score: 100 73 www.hhiuew33.com 2->73 89 Snort IDS alert for network traffic 2->89 91 Multi AV Scanner detection for domain / URL 2->91 93 Malicious sample detected (through community Yara rule) 2->93 95 12 other signatures 2->95 10 Htz6J2rVzW.exe 4 2->10         started        signatures3 process4 file5 59 C:\Users\user\AppData\Local\...\siww1049.exe, PE32+ 10->59 dropped 61 C:\Users\user\AppData\Local\Temp\file.exe, PE32 10->61 dropped 63 C:\Users\user\AppData\...\Htz6J2rVzW.exe.log, ASCII 10->63 dropped 13 file.exe 17 10->13         started        18 siww1049.exe 1 10->18         started        process6 dnsIp7 83 kaurmigration.com 173.231.205.212, 443, 49713, 49716 IMH-WESTUS United States 13->83 65 C:\Users\user\AppData\Roaming\00004823..exe, PE32 13->65 dropped 67 C:\Users\user\AppData\Roaming\00000029..exe, PE32 13->67 dropped 69 C:\Users\user\AppData\Local\...\fw4[1].exe, PE32 13->69 dropped 71 C:\Users\user\AppData\Local\...\fw3[1].exe, PE32 13->71 dropped 123 Antivirus detection for dropped file 13->123 125 Multi AV Scanner detection for dropped file 13->125 127 Machine Learning detection for dropped file 13->127 20 00004823..exe 1 13->20         started        24 00000029..exe 15 12 13->24         started        27 cmd.exe 1 13->27         started        85 www.hhiuew33.com 45.136.151.102, 49715, 49717, 49719 ENZUINC-US Latvia 18->85 87 ip-api.com 208.95.112.1, 49714, 80 TUT-ASUS United States 18->87 129 May check the online IP address of the machine 18->129 131 Tries to harvest and steal browser information (history, passwords, etc) 18->131 file8 signatures9 process10 dnsIp11 57 C:\Users\user\...\OEIQby9LlrzT2EtJ.exe, PE32 20->57 dropped 97 Antivirus detection for dropped file 20->97 99 Multi AV Scanner detection for dropped file 20->99 101 Found evasive API chain (may stop execution after checking mutex) 20->101 111 7 other signatures 20->111 29 OEIQby9LlrzT2EtJ.exe 20->29         started        32 jFtlcjYLVbgZSRwxDzMvAl.exe 20->32 injected 34 jFtlcjYLVbgZSRwxDzMvAl.exe 20->34 injected 43 8 other processes 20->43 77 87.251.77.180, 49730, 80 HOSTKEY-ASNL Russian Federation 24->77 79 iplogger.org 148.251.234.83, 443, 49736 HETZNER-ASDE Germany 24->79 81 192.168.2.1 unknown unknown 24->81 103 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->103 105 May check the online IP address of the machine 24->105 107 Machine Learning detection for dropped file 24->107 113 2 other signatures 24->113 36 cmd.exe 1 24->36         started        109 Uses ping.exe to check the status of other devices and networks 27->109 38 PING.EXE 1 27->38         started        41 conhost.exe 27->41         started        file12 signatures13 process14 dnsIp15 115 Writes to foreign memory regions 29->115 117 Allocates memory in foreign processes 29->117 119 Creates a thread in another existing process (thread injection) 29->119 121 Injects a PE file into a foreign processes 29->121 45 jFtlcjYLVbgZSRwxDzMvAl.exe 29->45 injected 47 jFtlcjYLVbgZSRwxDzMvAl.exe 29->47 injected 49 jFtlcjYLVbgZSRwxDzMvAl.exe 29->49 injected 51 jFtlcjYLVbgZSRwxDzMvAl.exe 29->51 injected 53 conhost.exe 36->53         started        55 timeout.exe 1 36->55         started        75 127.0.0.1 unknown unknown 38->75 signatures16 process17
Threat name:
ByteCode-MSIL.Downloader.ShortLoader
Status:
Malicious
First seen:
2022-09-13 12:03:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 25 (84.00%)
Threat level:
  3/5
Result
Malware family:
fabookie
Score:
  10/10
Tags:
family:fabookie discovery spyware stealer vmprotect
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
VMProtect packed file
Detect Fabookie payload
Fabookie
Unpacked files
SH256 hash:
fdee93f3d562c6857b22f135400cbd01126cb2dfb0ca14fe2e91d6ae1d29e3d9
MD5 hash:
ba9aa76440d602466385f49ec55760fb
SHA1 hash:
d88e11cf34cccdd87d336a1df73455f324569ea8
SH256 hash:
d71cbac3efcc3b8b5f2d13379cd6ac287f57d440c957cc099da081b6f01cff01
MD5 hash:
a580ca0964959df56426827147d0d579
SHA1 hash:
5fdaa688aa7484872994433516052ad6dbc26fd3
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:MALWARE_Win_DLInjector04
Author:ditekSHen
Description:Detects downloader / injector
Rule name:msil_rc4
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Fabookie

Executable exe d71cbac3efcc3b8b5f2d13379cd6ac287f57d440c957cc099da081b6f01cff01

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-09-14 01:10:10 UTC

url : hxxps://filetooljet.com/filejet.exe