MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d66fd5bf48c5579ea56c0ad773bdc1926c7e5d234bf6814786f076cdd1dd6c0a. 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



Formbook


Vendor detections: 18


Intelligence 18 IOCs YARA 2 File information Comments

SHA256 hash: d66fd5bf48c5579ea56c0ad773bdc1926c7e5d234bf6814786f076cdd1dd6c0a
SHA3-384 hash: 5bc16df7891cacbbe72bb23c83d8be5758b5d616f14cde43c997958b4d688b86ec72d595e196c3b05d46be429aa7595b
SHA1 hash: 91d0b3967ed684a0c6aeb93b26b93d7e7cea5a06
MD5 hash: 80ba9ea60bb2472189e71e94bd3bb10d
humanhash: nebraska-michigan-blossom-oregon
File name:Pre_Qualification_Doc.exe
Download: download sample
Signature Formbook
File size:907'264 bytes
First seen:2023-08-03 12:26:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:2EKaJLviVqZ5QgYZwwuUMadzNNKyitahBGiUiK369PIG0/ZAH:hv+O+zD9itahBjUkIG0/iH
Threatray 3'608 similar samples on MalwareBazaar
TLSH T17315083804B80A12C135D2AD6AD4F613B7904F96721DCD5686C24FC90AD6E2F2DDBDEE
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
273
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Pre_Qualification_Doc.exe
Verdict:
Malicious activity
Analysis date:
2023-08-03 12:27:33 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Restart of the analyzed sample
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade 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:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1285062 Sample: Pre_Qualification_Doc.exe Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 35 www.realitykitgame.com 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 51 9 other signatures 2->51 11 Pre_Qualification_Doc.exe 3 2->11         started        signatures3 49 System process connects to network (likely due to code injection or exploit) 35->49 process4 file5 33 C:\Users\...\Pre_Qualification_Doc.exe.log, ASCII 11->33 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 Pre_Qualification_Doc.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 3 1 15->18 injected process9 dnsIp10 37 www.haileylox.com 185.53.179.170, 49701, 80 TEAMINTERNET-ASDE Germany 18->37 39 www.531008.com 103.71.154.59, 49700, 80 LEMON-AS-APLEMONTELECOMMUNICATIONSLIMITEDHK Hong Kong 18->39 41 4 other IPs or domains 18->41 53 System process connects to network (likely due to code injection or exploit) 18->53 22 msiexec.exe 18->22         started        25 autochk.exe 18->25         started        27 autochk.exe 18->27         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 29 cmd.exe 1 22->29         started        process14 process15 31 conhost.exe 29->31         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-08-03 02:12:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:f1w6 rat spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
b183a6787bc6843eb463f0b4f1642c887b795f6149aae3c86eae98bd5a3cd6d8
MD5 hash:
bbce7a76912027587af2dab43f4bdbb6
SHA1 hash:
b4aa827ddf4b5125bbaae70287a66436c7c6e38c
SH256 hash:
53f2ad060cf771aa4f197df5789cee95959480c244a0b392bb450c8ce7311d77
MD5 hash:
37e82d3e2864e27b34f5fbacaea759c3
SHA1 hash:
a87024a466e052bff09a170bb8c6f374f6c84c32
SH256 hash:
40821038dd9a8a0c85f1c5898dcdd8fac1499e0b569ddfbadffe1c6ceb0aa03b
MD5 hash:
71ff3a9613b8d58debedc2742c43def3
SHA1 hash:
17cc80f177b9baa3f97024e6c7606961aaf36e37
SH256 hash:
d66fd5bf48c5579ea56c0ad773bdc1926c7e5d234bf6814786f076cdd1dd6c0a
MD5 hash:
80ba9ea60bb2472189e71e94bd3bb10d
SHA1 hash:
91d0b3967ed684a0c6aeb93b26b93d7e7cea5a06
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: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.

Comments