MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c
SHA3-384 hash: 3569aa04b3ab9588d285b5774e06439675375a7a43f11b297ceadab0775479c29fd7da40bce5531d1ffa288ba60ceea1
SHA1 hash: 1ca1009fe6a04f13af4070ed438f9799611f798c
MD5 hash: 673050267de4c8be5859237473cdaf50
humanhash: michigan-bravo-wolfram-ten
File name:673050267de4c8be5859237473cdaf50.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:375'928 bytes
First seen:2023-04-03 12:41:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:TYa6SIMWTixbkPmme/0Mcj1k3CCImbNCo7ArthYieU5rwk17u+o5tZtYv7tOpyXe:TYVMW2xbk+mtj1oCRmRCZ0ipf1S1tWEv
Threatray 2'626 similar samples on MalwareBazaar
TLSH T1A984D0C5F900D5A6EC2A97312A36DD3226037C3E54B4291D2BCE3E7B3EBF0529416A57
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
673050267de4c8be5859237473cdaf50.exe
Verdict:
Malicious activity
Analysis date:
2023-04-03 12:59:07 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/14a9a782-374a-42a8-b605-0c551e6f4047

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/379680/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.15978.23144.3839.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Reading critical registry keys
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/76330/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
71%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/642ac99bc56b2da73aca84e4/reports/78c6e49f-eb02-4273-b375-4d101222ee95/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fc8bfdc3-5408-41cd-83e9-bb71a4b7c868
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1207281
Signature
Antivirus detection for URL or domain
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Machine Learning detection for sample
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 840209 Sample: Eod6mJw1Qy.exe Startdate: 03/04/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 5 other signatures 2->39 9 Eod6mJw1Qy.exe 19 2->9         started        process3 file4 25 C:\Users\user\AppData\Local\Temp\pdfzg.exe, PE32 9->25 dropped 12 pdfzg.exe 9->12         started        process5 signatures6 51 Multi AV Scanner detection for dropped file 12->51 53 Maps a DLL or memory area into another process 12->53 15 pdfzg.exe 12->15         started        process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 2 6 15->18 injected process9 dnsIp10 27 mtgu.net 165.140.71.65, 49723, 49724, 49725 WISCNET1-ASUS Reserved 18->27 29 www.celestinshipping.org 74.220.199.6, 49720, 49721, 49722 UNIFIEDLAYER-AS-1US United States 18->29 31 8 other IPs or domains 18->31 41 System process connects to network (likely due to code injection or exploit) 18->41 22 cmmon32.exe 13 18->22         started        signatures11 process12 signatures13 43 Tries to steal Mail credentials (via file / registry access) 22->43 45 Tries to harvest and steal browser information (history, passwords, etc) 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-04-03 12:42:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jo24cd6lo4lreklvzqkvcst77p5yoxw7itlxhzhzappz2hove2ga._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2666d6497d3cc713c61afcf15370f3f4efd89e1dd719afcb99c1184236b35112
Formbook
2d3c7fefde60268ec96906144d74058651f6d5d7ed5993a8b1ed00ca40a2d7f0
Formbook
4873abac800f1c2594fdf8802b84ecfbdb7e704c0d46ff5edf66f46ec7a692e7
Formbook
5e517d06a3b252c0bced1ed16f1741fa73b4e0d4b81ec2daf71b57954604afc8
Formbook
5efbfab2a58f8e0b0c7d135fc020b123234ee1c56d81ecb760b3bae95db34e60
Formbook
896a539c6cb6f313782dc5f1bc8c296abd6732b0907c573ddd12ab9f6a666eb1
Formbook
a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
Formbook
b6fe7602e8f288c48cf04e60306dc9349c5b9ebeb8faf35905abede7d0525480
Formbook
d0751a97dcbfedcddcf4c05434a1563f2c46c037b05744f7cbde14cd49584b61
Formbook
+ 2'616 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230403-pxekvaeg48/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Unpacked files
SH256 hash:
397d4936ad04bf36e4c28de7ff45c3a540953ea4d2c3af2e6f04848747ac9287
MD5 hash:
c6b22dec1893cef38b2ad14cf680879a
SHA1 hash:
67c6880ee073f7646182e1ddcf22a3e770771027
Detections:
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/01b75204-df28-4716-89dd-c85234897578/
SH256 hash:
d1b87c35be5fb1912e2bfa9cf29ef0da1f1762ed2aa27584b13bc07a7fbff746
MD5 hash:
856bfe5e725b53f11433011e757d5168
SHA1 hash:
0509367131bed420ec22734f88277df60071b6ab
Link:
https://www.unpac.me/results/01b75204-df28-4716-89dd-c85234897578/
SH256 hash:
b6b14220780424735137a2fbfaf6b86c0de5a58e829b7307daf279004ed2b994
MD5 hash:
c3f2f597bb978fbf7bfa893d19ddf26e
SHA1 hash:
081ad2dbbb44760664e2a4d17965f62f73d61f55
Link:
https://www.unpac.me/results/01b75204-df28-4716-89dd-c85234897578/
SH256 hash:
4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c
MD5 hash:
673050267de4c8be5859237473cdaf50
SHA1 hash:
1ca1009fe6a04f13af4070ed438f9799611f798c
Link:
https://www.unpac.me/results/01b75204-df28-4716-89dd-c85234897578/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4bb5c10fcb77/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Suspicious_Macro_Presence
Create hunting rule
Author:Mehmet Ali Kerimoglu (CYB3RMX)
Description:This rule detects common malicious/suspicious implementations.

File information

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

Web download

Formbook

Executable exe 4bb5c10fcb7717122975cc15514a7ffbfb875edf44d773e4f903df9d1dd5268c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2581830/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/379680/

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