MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4883c17b319dd863b75676586e283a6065e70e3f99e4264b167030aa9fec05d8. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4883c17b319dd863b75676586e283a6065e70e3f99e4264b167030aa9fec05d8
SHA3-384 hash: 1be2bf8acdaea17c1f8ce1f09e556516964420f71ce21942398ba32bc36fb1620f6e345c9024edd9115915d27e3d371d
SHA1 hash: e18f42608a792f98807978829fd09b060200f9e8
MD5 hash: d21df425036566723209a69565c660b6
humanhash: iowa-stairway-oklahoma-gee
File name:invoice n.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:827'904 bytes
First seen:2020-08-17 19:05:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 639357242ed279ceaa4726408d2cc6d5 (10 x AgentTesla, 4 x Formbook, 3 x MassLogger)
ssdeep 12288:KHlYcrKanXHzeEjMx6p4ddVvjUip3GKfm8LonFPlkjlGe1oD7tXw:KF7OuHzkK4d7403c8UnFlkjlGeOPtA
Threatray 3'478 similar samples on MalwareBazaar
TLSH 6E059E23B1E14837D1B32A7C4C1F72A8A839BE103AF8594B7BE44F489F396513565E87
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: rizwanplc.pw
Sending IP: 104.168.145.21
From: info@rizwanplc.pw <info@rizwanplc.pw>
Reply-To: roadtriip25@gmail.com
Subject: RE: Order 8203 || Commercial Invoice
Attachment: invoice n.arj (contains "invoice n.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/47317/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.BScope.Trojan.Crypt.5088.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/434713
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4883c17b319dd863b75676586e283a6065e70e3f99e4264b167030aa9fec05d8/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 08:50:13 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jcb4c6zrtxmghn2wozmg4kb2mbs6odr7thscmsywoaykvh7maxma._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
0b3026ef214d1740de18fa48e13d8c5bddf67737a33fc07eabe0281f88f2ff5d
Formbook
0c14de05af14835140799c2d9be3c80da30d7938fdcffc22edc9f6e0ec4b9994
Formbook
261d9ecea1cd1ff4247b59e2d8f2d8ba4484811be97c1cad06f236dadf494139
Formbook
474af782fd84f7b982a4c49deeaf3431aeadd1e52528dc7dd8e3bb29bde9c40f
Formbook
6769e022c41fa821b705a29415f8ffd4be0fc7dc2619ef595e436637f849c0cd
Formbook
7654e7f6d4c0f38e9f771bf4c6d002b6e816d169afcabee3f028081a25b25506
Formbook
77be23825e937be7c4e100dd70233848523702b85fe2c5e622aa383748ac8e8a
Formbook
7d697b046bf682cf248d1409265ae2836e5f559337dac2690d6589506c8c46f5
Formbook
c2496731ce3417b90e7720b614d98a3ab2e9d8100ed2c5bea05525d5730241aa
Formbook
f3250b1ac9470b18b44d8c6591c22797a187c1aa02b364583eed5acb255f0328
Formbook
+ 3'468 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook persistence
Link:
https://tria.ge/reports/200817-t86cwj78bj/
Behaviour
Modifies Internet Explorer settings
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
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.regulars5.com/b0m/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4883c17b319dd863b75676586e283a6065e70e3f99e4264b167030aa9fec05d8

File information

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

Malspam

Formbook

arj 680dfb1274ca623a59fe98844dc695fd12890a86e2a5342002dd4833c822ccac

Formbook

Executable exe 4883c17b319dd863b75676586e283a6065e70e3f99e4264b167030aa9fec05d8

(this sample)

  
Dropped by
MD5 c1b0db1ce88b7bdae312f0668bb372fd
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47317/
  
Dropped by
SHA256 680dfb1274ca623a59fe98844dc695fd12890a86e2a5342002dd4833c822ccac

Comments