MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd
SHA3-384 hash: f9511997887d9e4ab64c5df8ef4b9531a128dbeeed850042b3db8cc1aad8ecfe528afb36660fc918f44c86274171df5b
SHA1 hash: e1fbbcd7990a97ccafea900f6d23455e435b119a
MD5 hash: fc2daecf5cf886d5dee2355482cc5d2d
humanhash: london-ink-avocado-green
File name:TNT Invoice_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:510'895 bytes
First seen:2023-03-24 06:38:21 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:OYa67tseYlNrGwbgnj1TZy413Oq1QrV+rvmhQzUlOwr04Os/zUAhgj5+S6TT2V/P:OYcKwbgj1TZ/xVXGesBA+H/A/P
Threatray 2'417 similar samples on MalwareBazaar
TLSH T152B4BEE0E710D9E4F86652F69033EC3226578E2DA4B9552F047C7161AAB33830DB7D9B
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 ebe92431d6d2538c (7 x Formbook)
Reporter abuse_ch
Tags:exe FormBook TNT

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
TNT Invoice_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-03-24 06:46:03 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/cabb91cf-20e9-4584-a8e6-d815b097b84c

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/377024/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for the window
Сreating synchronization primitives
Launching a process
Searching for synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
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/74537/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/641d45896ed02dd52de52fee/reports/8fb81674-1b3a-4ed9-8580-cb985dc30840/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd
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/ec6192e3-51db-499f-becd-dbb5a4d622fc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1201019
Signature
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
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: 833924 Sample: TNT_Invoice_pdf.exe Startdate: 24/03/2023 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 2 other signatures 2->41 9 TNT_Invoice_pdf.exe 19 2->9         started        process3 file4 27 C:\Users\user\AppData\...\lgjdycfthu.exe, PE32 9->27 dropped 12 lgjdycfthu.exe 1 9->12         started        process5 signatures6 53 Multi AV Scanner detection for dropped file 12->53 55 Detected unpacking (changes PE section rights) 12->55 57 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 12->57 59 Maps a DLL or memory area into another process 12->59 15 lgjdycfthu.exe 12->15         started        18 conhost.exe 12->18         started        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 20 explorer.exe 5 6 15->20 injected process9 dnsIp10 29 egida-franchise.ru 185.215.4.31, 49699, 49700, 49701 TVHORADADAES Denmark 20->29 31 www.dailynaturalguides.com 216.40.34.41, 49708, 49709, 49710 TUCOWSCA Canada 20->31 33 7 other IPs or domains 20->33 43 System process connects to network (likely due to code injection or exploit) 20->43 24 msiexec.exe 13 20->24         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 24->45 47 Tries to harvest and steal browser information (history, passwords, etc) 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd/
Threat name:
Win32.Trojan.Shellcoderunner
Create hunting rule
Status:
Malicious
First seen:
2023-03-24 02:51:46 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7b77z4bd235prg65nnpqgwzkmxzki3mbuwuiwm3wshcwpd5g47oq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1a2a1e57a606e82fcb2e16a4b6acff6d4206c23bd33b6bcea2dd8e519f1cdb03
Formbook
4adcc8ef0f0f441cf8e44f0c3c446f620409dbf79353811fa4d6526c6752f6ae
Formbook
83e90e75eb49fccf0f69331483311ce57f89b33824fbec54e773af910da239a8
Formbook
afbccae6537d0602edbc99ef03ec8b89ec23df241079f949c0b8a0aa6f9aa8f0
Formbook
bedb5ef007caf41eb52f0331f1fdf5997271a828df7adb1e1132063129eba99e
Formbook
c6645061d744760f8f85692273d06946478e3f804f4f972a74a1764daece8b4e
Formbook
d69b13f1276594f9f10cf722a15179b0d71911a92d15a726e1bdd234a880cf92
Formbook
f3197cca74f60c552d9d3b4d04d99996ceca8c8dc6ad845a468c10c65062a0fc
Formbook
f5ae9ee403c63e78514c23cdb6297c09a5367c241f6151def5fe1fc096946de4
Formbook
f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd
Formbook
+ 2'407 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230324-hem1yaeg8w/
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
Reads user/profile data of web browsers
Blocklisted process makes network request
Unpacked files
SH256 hash:
974a79814c2415186f47892a3ef7851fcedddd3fd660f810cb4a2c8af6355243
MD5 hash:
2b4aa7a1aa83e1300abad95f276c058c
SHA1 hash:
ce9fefbf872906115009f0b1fe2fb5ac4df462df
Link:
https://www.unpac.me/results/a207f790-ce80-4323-a07c-ef063961b61c/
SH256 hash:
f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd
MD5 hash:
fc2daecf5cf886d5dee2355482cc5d2d
SHA1 hash:
e1fbbcd7990a97ccafea900f6d23455e435b119a
Link:
https://www.unpac.me/results/a207f790-ce80-4323-a07c-ef063961b61c/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f87ffcf023d6/report/overview.html
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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe f87ffcf023d6faf89bdd6b5f035b2a65f2a46d81a5a88b337691c5678fa6e7dd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377024/

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