MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390
SHA3-384 hash: f7595b5e2448a910379c2593e2a4f4ae8915a4f9a70d1e4fdafc8a6b2a582759dea81f4ab6e222d27d9da4fcbf5589ae
SHA1 hash: 8e88400d1292aac8462b0413e039fd16a95112cd
MD5 hash: 4b21b233b4fb9b116477fb24cdd8e376
humanhash: stairway-monkey-minnesota-louisiana
File name:summary.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:474'624 bytes
First seen:2020-09-23 14:09:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:R5iXq4NYHjLS1hxsvAwC0LhvBb4f5YghFZByCgWfF5fJloa:2x2HUhuvj8fBZBzv5fo
Threatray 2'348 similar samples on MalwareBazaar
TLSH B3A45CF6368A597DCD2E0132C0F685CCF73526CB7A914E0EB19B830C0D0A75B67A599E
Reporter cocaman
Tags:exe FormBook


Avatar
cocaman
Malicious email (T1566.001)
From: ""Komo Abdul" <admin@mokitens.tk>"
Received: "from WIN-PUBK8845PCH (unknown [46.183.219.227]) "
Date: "Wed, 23 Sep 2020 16:21:40 +0300"
Subject: "Re: Friendly Reminder"
Attachment: "summary.exe"

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/64871/
Detection(s):
SecuriteInfo.com.Artemis4B21B233B4FB.12003.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %temp% subdirectories
Creating a file
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/473415
Signature
.NET source code contains very large array initializations
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 (e.g. based on Emerging Threat rules)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 289152 Sample: summary.exe Startdate: 23/09/2020 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 4 other signatures 2->51 10 summary.exe 15 6 2->10         started        process3 dnsIp4 39 www.ecb.int 10->39 41 www-ecb-europa-eu.ax4z.com 185.5.82.138, 443, 49704, 49705 SOPRADO-ANYDE Germany 10->41 43 2 other IPs or domains 10->43 29 C:\Users\user\AppData\...\InstallUtil.exe, PE32 10->29 dropped 31 C:\Users\user\AppData\...\summary.exe.log, ASCII 10->31 dropped 33 C:\Users\user\AppData\Local\Temp\...\i.dll, PE32 10->33 dropped 61 Tries to detect virtualization through RDTSC time measurements 10->61 15 InstallUtil.exe 10->15         started        file5 signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 2 other signatures 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.gonnabee.net 18->35 37 773147.parkingcrew.net 76.223.26.96, 49707, 80 AMAZON-02US United States 18->37 53 System process connects to network (likely due to code injection or exploit) 18->53 22 mstsc.exe 18->22         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 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-09-23 11:02:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
25 of 29 (86.21%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f4du2r4sg3q3jm3hgpy6a4owybj2cnicls6gftgcgn3wwi3aioia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
Similar samples:
0bf6ccdd920a50186f7318c51564ecc8f502302b084a5fda3feadb0d51e40f24
Formbook
1d433633d08421004a24c04b8a6a05b9c19afde22e6869c82f9cbe6aaad568fd
Formbook
3c3a52620a36e8ef2806ffad5a241444d93b7eb839c3b3cfa4697e130d349dcc
Formbook
3d8ff1b4492a541b44c03733b090c73fd992535d8c4e867abc0e6aeaf5b58b30
Formbook
4fd6cfb4c08338e8b3a6ec64118aa6ad90350e865e90365b5b700aa41908b984
Formbook
9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8
Formbook
a102b644fd134778f28e1105e4645e84ff4d05687351990de90ae27a89f0513b
Formbook
b25e43fe3f6068eb13b79f8900dea897533005aee7e2139e6676b7cdc92cc588
Formbook
bcaf7b4adc919fd5aaae24902b8135e2ad6d13249e9cb784b1532b52e40449b5
Formbook
ef19177bdff9d49a09dd7010e58fd81029d5f8e2d54abb053575604c2fc219ed
Formbook
+ 2'338 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200923-qxp462hql6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.utrgv.education/a43/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

Formbook

Executable exe 2f074d479236e1b4b36733f1e071d6c053a135025cbc62ccc233776b23604390

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/64871/

Comments