MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
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SHA256 hash: 798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1
SHA3-384 hash: 891cb928184eedcb618e1e3ce00c4059a208deabb278bc5a3eeb202a59bfb349a2ad73fad271fa1ecf51dc77c5fcd866
SHA1 hash: 9c5eb5c584f6220979721f726e64b3023b0901ec
MD5 hash: fcc70e09728e0eee066653490e457758
humanhash: delta-indigo-romeo-gee
File name:fcc70e09728e0eee066653490e457758
Download: download sample
Signature Formbook
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File size:1'996'800 bytes
First seen:2022-06-09 17:00:01 UTC
Last seen:2022-06-09 17:39:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:frydmHHxMo8dMXJBjPURNCKN+vCc5fq+z5fq+sOT75fq+W5fq+tJX5fq+z0sz5fy:WiCIjPUvCs+vCwrOEIZJVXG
TLSH T1AA95CF007390E34BC26AB33B2974F73513B96AD2BB56E7599434B6D738923408E627D3
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
346
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Egy332663.xlsx
Verdict:
Malicious activity
Analysis date:
2022-06-08 12:00:23 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/7e37717c-9ea6-406b-a882-6459a1daa85c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/278445/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1372.11792.3170.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Adding an access-denied ACE
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a2271a5dc88d35716fa37f/reports/5e55bf71-4082-4d65-91f5-1c96c26b4c0b/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bd27dff9-660e-452f-8aa8-f439ae3941c7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1010217
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Injects a PE file into a foreign processes
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 submitted file
Performs DNS queries to domains with low reputation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 642713 Sample: a4blA5O6u7 Startdate: 09/06/2022 Architecture: WINDOWS Score: 100 33 www.flynnsport.com 2->33 35 www.5rsstrategiesinvest.com 2->35 43 Snort IDS alert for network traffic 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 8 other signatures 2->49 11 a4blA5O6u7.exe 1 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\a4blA5O6u7.exe.log, ASCII 11->31 dropped 61 Writes to foreign memory regions 11->61 63 Allocates memory in foreign processes 11->63 65 Injects a PE file into a foreign processes 11->65 15 ktmutil.exe 11->15         started        18 PackagedCWALauncher.exe 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 2 other signatures 15->73 20 explorer.exe 15->20 injected process9 dnsIp10 37 sibiric.xyz 63.250.38.85, 49776, 80 NAMECHEAP-NETUS United States 20->37 39 www.ossule.top 154.91.33.141, 49775, 80 ANCHGLOBAL-AS-APAnchnetAsiaLimitedHK Seychelles 20->39 41 4 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 53 Performs DNS queries to domains with low reputation 20->53 24 wlanext.exe 20->24         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-06-08 13:52:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pghznmkgs5svo3zuke3f5bcey35jl5s3jsk3oeaiijiro5h6mwyq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:j6hi loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220609-vhy9laeee6/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
3e1c22626f853ebabe0b5afca3881d5a2e53c84fd46f48246a3c6f0d80ad0a3a
MD5 hash:
92360d7b3a942c78ad0edd16f9fbc2de
SHA1 hash:
a98427cf51a73330acb9132d8b5ff6e3e897d41c
Link:
https://www.unpac.me/results/6a5a814d-918c-449e-ae30-3fc820b1b4c2/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/6a5a814d-918c-449e-ae30-3fc820b1b4c2/
SH256 hash:
798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1
MD5 hash:
fcc70e09728e0eee066653490e457758
SHA1 hash:
9c5eb5c584f6220979721f726e64b3023b0901ec
Link:
https://www.unpac.me/results/6a5a814d-918c-449e-ae30-3fc820b1b4c2/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/798f96b14697/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1

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
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Rule name:Skystars_Malware_Imphash
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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

Formbook

Executable exe 798f96b1469765576f3451365e8444c6fa95f65b4c95b7100842511774fe65b1

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/278445/
  
URLhaus
https://urlhaus.abuse.ch/url/2231811/

Comments


Avatar
zbet commented on 2022-06-09 17:00:08 UTC

url : hxxp://103.167.91.26/Gspace/vbc.exe