MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2d116cb905cf6c74a895fb8c391c0ce48b8f41a36d3cb753c9413fb68a23bd4. 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: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: b2d116cb905cf6c74a895fb8c391c0ce48b8f41a36d3cb753c9413fb68a23bd4
SHA3-384 hash: b1a6d7f22728e8cc1afa2784a264d9b28e6bcbe133ae3c30caa9c2844aa628df683a91e3c55ed6d7ff12d749a5e6f611
SHA1 hash: 4f3fbb875ef29e21f75c96778bb34f6a5d205085
MD5 hash: 7148e0c873194d7e5fcbaa418da805dc
humanhash: fifteen-leopard-finch-ink
File name:PRODUCT INQUIRY.pdf.exe
Download: download sample
Signature Formbook
File size:943'104 bytes
First seen:2020-10-19 07:32:15 UTC
Last seen:2020-10-19 09:08:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:IllRmfkN3r9A1GKZHNYPzodG9hiKLTqJlsIRuMCplBvXL3ugOO/P:0RA1GUKzodGPiaTq7J6vL3ujO/
Threatray 2'519 similar samples on MalwareBazaar
TLSH 09157A1423F80B09F57B97F59228504197B6BA9A613ED24C7DCD31DE9FB2B010A63B27
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: se4d-iad1.servconfig.com
Sending IP: 173.231.241.34
From: Martin Star <Martin.star@lauletta.com>
Subject: Re: PRODUCTS INQUIRY
Attachment: PRODUCT INQUIRY.pdf.rar (contains "PRODUCT INQUIRY.pdf.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Detected FormBook malware
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Steal Google chrome login data
Sigma detected: Suspicious Double Extension
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 300006 Sample: PRODUCT INQUIRY.pdf.exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Sigma detected: Steal Google chrome login data 2->55 57 10 other signatures 2->57 10 PRODUCT INQUIRY.pdf.exe 3 2->10         started        process3 file4 41 C:\Users\user\...\PRODUCT INQUIRY.pdf.exe.log, ASCII 10->41 dropped 69 Injects a PE file into a foreign processes 10->69 14 PRODUCT INQUIRY.pdf.exe 10->14         started        17 PRODUCT INQUIRY.pdf.exe 10->17         started        signatures5 process6 signatures7 73 Modifies the context of a thread in another process (thread injection) 14->73 75 Maps a DLL or memory area into another process 14->75 77 Sample uses process hollowing technique 14->77 79 Queues an APC in another process (thread injection) 14->79 19 explorer.exe 14->19 injected process8 dnsIp9 45 www.txlvyin.com 19->45 47 www.tealbirding.com 19->47 49 3 other IPs or domains 19->49 59 System process connects to network (likely due to code injection or exploit) 19->59 23 raserver.exe 1 18 19->23         started        signatures10 process11 file12 37 C:\Users\user\AppData\...\0-0logrv.ini, data 23->37 dropped 39 C:\Users\user\AppData\...\0-0logri.ini, data 23->39 dropped 61 Detected FormBook malware 23->61 63 Creates an undocumented autostart registry key 23->63 65 Tries to steal Mail credentials (via file access) 23->65 67 4 other signatures 23->67 27 cmd.exe 2 23->27         started        31 cmd.exe 1 23->31         started        signatures13 process14 file15 43 C:\Users\user\AppData\Local\Temp\DB1, SQLite 27->43 dropped 71 Tries to harvest and steal browser information (history, passwords, etc) 27->71 33 conhost.exe 27->33         started        35 conhost.exe 31->35         started        signatures16 process17
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-10-19 02:19:23 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.porcber.com/cfo/
Unpacked files
SH256 hash:
b2d116cb905cf6c74a895fb8c391c0ce48b8f41a36d3cb753c9413fb68a23bd4
MD5 hash:
7148e0c873194d7e5fcbaa418da805dc
SHA1 hash:
4f3fbb875ef29e21f75c96778bb34f6a5d205085
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
SH256 hash:
2f6e2bf28d5aeaa646ced9f959a91cdc335c11d26cc4ff02a29a15ddfd7cc09c
MD5 hash:
4b44df8397bd04365829cb36a1de5b79
SHA1 hash:
71d09a42c52fcc6789c07ee0b0c4fa6f079778e1
SH256 hash:
b437b7d9676d509a5e1ce0229ffe59964f7540eebc4a69126eecfcb25bfa66e9
MD5 hash:
633c5d180309d1a490b65d7f515a48aa
SHA1 hash:
e8041cad9587d83a08b6b29c65bbdcc7d49f2d9e
Detections:
win_formbook_g0 win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe b2d116cb905cf6c74a895fb8c391c0ce48b8f41a36d3cb753c9413fb68a23bd4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments