MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cacd20da785153237d5602e9fb15f7d18343b16e37dfbbf36b549e89a93378f. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: 8cacd20da785153237d5602e9fb15f7d18343b16e37dfbbf36b549e89a93378f
SHA3-384 hash: aff135fefd4adba01d8a4fed878a2eec504cc7d8731dae1b333656efc311ec832fe521a4be22c8d31c876b3930459872
SHA1 hash: 1210ce0d133e4d8862bbea4d535d2e7181fc395c
MD5 hash: 9ebbda76067bcea4343c56f37fc8bfc6
humanhash: wyoming-nuts-tennessee-moon
File name:Quotation Details_pdf.exe
Download: download sample
Signature Formbook
File size:315'759 bytes
First seen:2021-12-08 06:49:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiJ1fzTMQy3zkZHolb3zOqKd0Khw3FsdlTk8PCWs:zXM5QiDaW1s/Tk8s
Threatray 12'167 similar samples on MalwareBazaar
TLSH T17B642385F9D06877C6C689790176EFE5FFA405A426820F0763E42FB90E42A277B17393
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation Details_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-12-08 06:56:34 UTC
Tags:
installer trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching cmd.exe command interpreter
DNS request
Reading critical registry keys
Setting browser functions hooks
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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:
Generic Malware
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 536134 Sample: Quotation Details_pdf.exe Startdate: 08/12/2021 Architecture: WINDOWS Score: 100 33 www.petermakesphoto.com 2->33 35 www.madeintorrent.us 2->35 37 petermakesphoto.com 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 4 other signatures 2->51 11 Quotation Details_pdf.exe 17 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\atzak.dll, PE32 11->31 dropped 61 Injects a PE file into a foreign processes 11->61 15 Quotation Details_pdf.exe 11->15         started        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 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 signatures10 41 System process connects to network (likely due to code injection or exploit) 18->41 43 Performs DNS queries to domains with low reputation 18->43 21 WWAHost.exe 18->21         started        process11 signatures12 53 Self deletion via cmd delete 21->53 55 Modifies the context of a thread in another process (thread injection) 21->55 57 Maps a DLL or memory area into another process 21->57 59 Tries to detect virtualization through RDTSC time measurements 21->59 24 explorer.exe 1 163 21->24         started        27 cmd.exe 1 21->27         started        process13 dnsIp14 39 www.tpkjd.xyz 24->39 29 conhost.exe 27->29         started        process15
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-12-08 05:49:11 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:t0y7 rat spyware stealer suricata trojan
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.tpkjd.xyz/t0y7/
Unpacked files
SH256 hash:
8cacd20da785153237d5602e9fb15f7d18343b16e37dfbbf36b549e89a93378f
MD5 hash:
9ebbda76067bcea4343c56f37fc8bfc6
SHA1 hash:
1210ce0d133e4d8862bbea4d535d2e7181fc395c
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:win_formbook_auto
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.

Malspam

Formbook

Executable exe 8cacd20da785153237d5602e9fb15f7d18343b16e37dfbbf36b549e89a93378f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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