MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf8bfab0557ff010ee03db046d493da9b0deeaa5e5fb55d9e5750f280a0289ac. 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 1 File information Comments

SHA256 hash: bf8bfab0557ff010ee03db046d493da9b0deeaa5e5fb55d9e5750f280a0289ac
SHA3-384 hash: e7e4b5fbe0f0d22ba85d67589620b373dff062aea01257a142ffe46e4329733d39143be8afd8b46805d8e959d94fcae0
SHA1 hash: d9b767d6703a8ed0d99e666c360a104c6dd4c1f9
MD5 hash: 4c7f34b23f003c872c8f2d05fc76ce15
humanhash: purple-mango-princess-nevada
File name:FanCourier54488203expediere doc202177.exe
Download: download sample
Signature Formbook
File size:266'883 bytes
First seen:2021-10-05 13:53:38 UTC
Last seen:2021-10-05 15:19:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBs942PDUJUt9bTNAjvaUmBs1N7NFC2yekzdddOC:/942PDUut9NAzXZ19C2oddwC
Threatray 10'173 similar samples on MalwareBazaar
TLSH T1D544228566E6CCE7E9934F714E75B73BF3B6A00B01A15E0B07994F3728614C7A83C289
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
FanCourier54488203expediere doc202177.exe
Verdict:
Malicious activity
Analysis date:
2021-10-05 13:56:03 UTC
Tags:
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
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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
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: 497273 Sample: FanCourier54488203expediere... Startdate: 05/10/2021 Architecture: WINDOWS Score: 100 31 www.bogosamba.com 2->31 33 bogosamba.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 11 other signatures 2->47 11 FanCourier54488203expediere doc202177.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\lyfmes.dll, PE32 11->29 dropped 59 Injects a PE file into a foreign processes 11->59 15 FanCourier54488203expediere doc202177.exe 11->15         started        signatures6 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 18 explorer.exe 15->18 injected process9 dnsIp10 35 australiapost.digital 198.54.116.153, 49840, 80 NAMECHEAP-NETUS United States 18->35 37 ps-sac.com 67.205.83.103, 49837, 80 IWEB-ASCA Canada 18->37 39 17 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 raserver.exe 18->22         started        signatures11 process12 signatures13 51 Self deletion via cmd delete 22->51 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2021-10-04 16:30:18 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:ni8b loader rat suricata
Behaviour
Modifies registry class
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
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.nottryingdoing.com/ni8b/
Unpacked files
SH256 hash:
bf8bfab0557ff010ee03db046d493da9b0deeaa5e5fb55d9e5750f280a0289ac
MD5 hash:
4c7f34b23f003c872c8f2d05fc76ce15
SHA1 hash:
d9b767d6703a8ed0d99e666c360a104c6dd4c1f9
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information


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

  
Delivery method
Distributed via e-mail link

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