MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436. 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 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436
SHA3-384 hash: f67a807d2fe1355c0501967c7a99385a4d470dfae1c2d4ee19c680061c901135491d27ccedbbff2efc2cd6c0f7f41939
SHA1 hash: 19df4c73ad340f89c0748031416c5a7fb4f9dabf
MD5 hash: c5edcf43ecc797a13c565d436c6a541c
humanhash: uranus-papa-jig-lemon
File name:c5edcf43ecc797a13c565d436c6a541c
Download: download sample
Signature Formbook
Create hunting rule
File size:270'433 bytes
First seen:2023-01-27 04:39:28 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:/Ya6nNcpeTPip2Ooh4U/W4+GGqAShPgsewR+7CRh76vNBxwo:/YVW8iQVhvJ+GxAig7G+7CD70zwo
TLSH T1EB44124852E4D063F9A287711C36635BFBFA6E1714A85B0B53600A6D3D77242EE2F363
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
c5edcf43ecc797a13c565d436c6a541c
Verdict:
Malicious activity
Analysis date:
2023-01-27 04:42:37 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/60256809-d771-4729-8610-ab0371e630c7

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/357293/
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
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Connecting to a non-recommended domain
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/63348/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63d355a31c9cbf7d625351ad/reports/f0a82cc6-5b6e-45a1-9576-46f7208811ee/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/110f42d9-6f89-442f-b968-a85d760ec41e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1160009
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
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: 792746 Sample: DVKCDJt0AJ.exe Startdate: 27/01/2023 Architecture: WINDOWS Score: 100 55 Multi AV Scanner detection for domain / URL 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 5 other signatures 2->61 11 DVKCDJt0AJ.exe 19 2->11         started        process3 file4 37 C:\Users\user\AppData\Local\...\kyfhnzgx.exe, PE32 11->37 dropped 14 kyfhnzgx.exe 11->14         started        process5 signatures6 77 Antivirus detection for dropped file 14->77 79 Multi AV Scanner detection for dropped file 14->79 81 Detected unpacking (changes PE section rights) 14->81 83 2 other signatures 14->83 17 kyfhnzgx.exe 14->17         started        process7 signatures8 47 Modifies the context of a thread in another process (thread injection) 17->47 49 Maps a DLL or memory area into another process 17->49 51 Sample uses process hollowing technique 17->51 53 Queues an APC in another process (thread injection) 17->53 20 explorer.exe 5 5 17->20 injected process9 dnsIp10 41 www.niply.space 64.190.63.111, 49714, 80 NBS11696US United States 20->41 43 www.peiphitan.com 192.64.115.133, 49706, 80 NAMECHEAP-NETUS United States 20->43 45 10 other IPs or domains 20->45 63 System process connects to network (likely due to code injection or exploit) 20->63 65 Performs DNS queries to domains with low reputation 20->65 24 msdt.exe 1 12 20->24         started        signatures11 process12 signatures13 67 Tries to steal Mail credentials (via file / registry access) 24->67 69 Modifies the context of a thread in another process (thread injection) 24->69 71 Maps a DLL or memory area into another process 24->71 73 Tries to detect virtualization through RDTSC time measurements 24->73 27 cmd.exe 2 24->27         started        31 cmd.exe 1 24->31         started        process14 file15 39 C:\Users\user\AppData\Local\Temp\DB1, SQLite 27->39 dropped 75 Tries to harvest and steal browser information (history, passwords, etc) 27->75 33 conhost.exe 27->33         started        35 conhost.exe 31->35         started        signatures16 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-01-26 09:53:48 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3dtr6t3maap7idg4ap77emwqs6qqhjcbhohhj3fzumz3riwwuq3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:poub loader persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230127-fajfvagd93/
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
Xloader payload
Formbook
Xloader
Unpacked files
SH256 hash:
ca56268d4001f6d64513e45c19cb38db0953bf755eb4db62660355006549d904
MD5 hash:
b7463fa0d6c8c0845ad95df71146af7d
SHA1 hash:
f96bed594f3bf9447f925a8c18785d6f758c2b6d
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/1a2dcbc5-f56a-4b98-8af9-1f31c90a2f8f/
Parent samples :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 hash:
ce22bacf5aa582c56b2d6f8ea9526b55d3323ba7f13ea5df30d42a1b7b0b42b3
MD5 hash:
c86e20d234c3557e77154ba8360a3d74
SHA1 hash:
dff1db8a775fcd3e8b7be1ad420f4b43e673574c
Link:
https://www.unpac.me/results/1a2dcbc5-f56a-4b98-8af9-1f31c90a2f8f/
SH256 hash:
d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436
MD5 hash:
c5edcf43ecc797a13c565d436c6a541c
SHA1 hash:
19df4c73ad340f89c0748031416c5a7fb4f9dabf
Link:
https://www.unpac.me/results/1a2dcbc5-f56a-4b98-8af9-1f31c90a2f8f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d8e71f4f6c00/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/d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436

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.

File information

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

Web download

Formbook

Executable exe d8e71f4f6c001ff40cdc03fff232d097a103a4413b8e74ecb9a333b8a2d6a436

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/357293/
  
URLhaus
https://urlhaus.abuse.ch/url/2519594/

Comments


Avatar
zbet commented on 2023-01-27 04:39:30 UTC

url : hxxp://64.93.80.148/nala.exe