MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73d3092b1f9a4b51d169f0757e120c8bb1e7d0a650a83dc00ea0dac2204df55a. 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 File information Comments

SHA256 hash: 73d3092b1f9a4b51d169f0757e120c8bb1e7d0a650a83dc00ea0dac2204df55a
SHA3-384 hash: 7f0598a9a1a8c35b5894a4f8d29566f5284b3619408c811fbe78e4318868686cf987d37db2ec758130b785d921c0bb2c
SHA1 hash: d940fb3d9cd6705618462fe148eb2a2091fd8b5a
MD5 hash: ac36d5579c704d83e721a9a63975efcf
humanhash: butter-summer-charlie-lactose
File name:inv.exe
Download: download sample
Signature Formbook
File size:350'208 bytes
First seen:2021-01-06 16:10:58 UTC
Last seen:2021-01-06 18:08:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 31c815897a3b55d8d8afcee958fa181c (3 x Formbook, 2 x AgentTesla, 1 x NanoCore)
ssdeep 6144:7NrLL3ZbqFpa0o5XdqZkWgbhYUNU24tgSe8Yy2fCwnVKjxl4XpKVLcBAQYBDU1IL:7VZsUDYE0eKw6DeScBODUopb+fc
Threatray 3'355 similar samples on MalwareBazaar
TLSH 92744B26B788F6A6E18144B47209FFA610603C34692EC843F7C17B5B78725EE9916F1F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: alnassar.com.sa
Sending IP: 162.244.93.110
From: Márcia <enquiries@brainfarma.ind.br>
Reply-To: antoniomarcia@brainfarma.ind.br
Subject: New Order Inquiry
Attachment: New Order Inquiry.rar (contains "inv.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
221
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3.rar
Verdict:
Malicious activity
Analysis date:
2021-01-06 12:00:58 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
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser 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
Antivirus / Scanner detection for submitted sample
Found malware configuration
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)
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 signatures2 2 Behavior Graph ID: 336673 Sample: inv.exe Startdate: 06/01/2021 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 4 other signatures 2->41 10 inv.exe 2->10         started        process3 signatures4 49 Maps a DLL or memory area into another process 10->49 51 Tries to detect virtualization through RDTSC time measurements 10->51 13 inv.exe 10->13         started        process5 signatures6 53 Modifies the context of a thread in another process (thread injection) 13->53 55 Maps a DLL or memory area into another process 13->55 57 Sample uses process hollowing technique 13->57 59 Queues an APC in another process (thread injection) 13->59 16 explorer.exe 13->16 injected process7 dnsIp8 27 shops.myshopify.com 23.227.38.74, 49756, 80 CLOUDFLARENETUS Canada 16->27 29 www.dropdevil.com 52.23.148.124, 49755, 80 AMAZON-AESUS United States 16->29 31 7 other IPs or domains 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 wscript.exe 16->20         started        signatures9 process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2021-01-06 16:11:08 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.besthandstool.icu/uds2/
Unpacked files
SH256 hash:
96780ec9db13ea9c583ae3f70775d65cc521583642fcceb1cda226ac658d0fc4
MD5 hash:
fc848c305850f579606108594e4f5316
SHA1 hash:
7189d742820b68c8f3f5b84ac3f3c911535ca10a
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
73d3092b1f9a4b51d169f0757e120c8bb1e7d0a650a83dc00ea0dac2204df55a
MD5 hash:
ac36d5579c704d83e721a9a63975efcf
SHA1 hash:
d940fb3d9cd6705618462fe148eb2a2091fd8b5a
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 73d3092b1f9a4b51d169f0757e120c8bb1e7d0a650a83dc00ea0dac2204df55a

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments