MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a594fa3c71d830484608b08d8ce60be7026b1841aced2248fee6124e003ba981. 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 3 File information Comments

SHA256 hash: a594fa3c71d830484608b08d8ce60be7026b1841aced2248fee6124e003ba981
SHA3-384 hash: 2f48aff8db838534692d11d458df7dc067d97fd75e660d11cf57328ab05a42f4a65abe42fcb0c25f5061915c8336371d
SHA1 hash: 2731ade0d4b230bcea7c70f861e70432c4e74bec
MD5 hash: 1b3d843303bd387d25bbabc282e08d3a
humanhash: chicken-william-bulldog-grey
File name:BSG_ptf.exe
Download: download sample
Signature Formbook
File size:440'622 bytes
First seen:2021-03-10 14:18:28 UTC
Last seen:2021-03-10 15:56:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:xNP7r9r/+ppppppppppppppppppppppppppppp0GY09Ult4O3+ESEUu:j1qYcUHGESPu
Threatray 4'128 similar samples on MalwareBazaar
TLSH 66945AC5E98065A4DD19AB306A37CD3582237DFDA874A45D29DE3E2B3FFB2931026053
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BSG_ptf.exe
Verdict:
Malicious activity
Analysis date:
2021-03-10 14:20:58 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% subdirectories
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 dropped file
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 366212 Sample: BSG_ptf.exe Startdate: 10/03/2021 Architecture: WINDOWS Score: 100 31 www.tiantianhanju.com 2->31 33 www.amandamcmahon.net 2->33 35 4 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 11 BSG_ptf.exe 11 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\z01z1poq591rw3.dll, PE32 11->29 dropped 59 Detected unpacking (changes PE section rights) 11->59 61 Maps a DLL or memory area into another process 11->61 63 Tries to detect virtualization through RDTSC time measurements 11->63 15 BSG_ptf.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 ac500.zfbgelycyf09.com 65.52.161.131, 49745, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->37 39 www.exoticfilipina.com 23.82.225.149, 49719, 80 LEASEWEB-USA-SEA-10US United States 18->39 41 16 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 cmd.exe 18->22         started        signatures11 process12 signatures13 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       
Gathering data
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2021-03-10 00:37:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
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
Malware Config
C2 Extraction:
http://www.firstbirthdayphotoshoot.com/nu8e/
Unpacked files
SH256 hash:
a594fa3c71d830484608b08d8ce60be7026b1841aced2248fee6124e003ba981
MD5 hash:
1b3d843303bd387d25bbabc282e08d3a
SHA1 hash:
2731ade0d4b230bcea7c70f861e70432c4e74bec
Detections:
win_cannon_auto
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_InTheFu
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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_cannon_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

  
Delivery method
Other

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