MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43a2a98bb50daedc36c6f08ab5698638de59f80ad30f9754b8ff690d90c088f3. 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: 43a2a98bb50daedc36c6f08ab5698638de59f80ad30f9754b8ff690d90c088f3
SHA3-384 hash: e0004e0cf505f0f495542d7faccea3e714fc46c34b2dcc9549b201426358bc9fc6604a9a8c5258203c5c125b24d5faf8
SHA1 hash: 0a810926cf71c53dc77b31d32b29b45128a9b7f6
MD5 hash: 6ef27022ea23bd2e78d6b26f1fc1dc22
humanhash: arkansas-uranus-jig-arizona
File name:Commercial Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:817'664 bytes
First seen:2020-08-17 14:03:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 90971096b3f3ef49ea4900e0dc05049a (10 x FormBook, 9 x AgentTesla, 4 x Loki)
ssdeep 12288:dgftlTxIDJRRtYRNeuawx2+8zVQLlcqPTxUHYY3UmNUSFCWc8lodrN7Pu:dg1JxIwP5YxaZ0dD6S4WcvdxP
Threatray 2'242 similar samples on MalwareBazaar
TLSH E5059D32B1E14437D173DA7C5C1B637B982ABD132B289B466BF07D489F39A5036292C7
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: emirates.net.ae
Sending IP: 45.137.22.136
From: alsumood@emirates.net.ae
Reply-To: milsfrankblaze@gmail.com
Subject: Order 8203 || Commercial Invoice
Attachment: Commercial Invoice.arj (contains "Commercial Invoice.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/47087/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

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

SecuriteInfo.com.Trojan.GenericKD.43676699.3150.4339.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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/433707
Signature
Benign windows process drops PE files
Contains functionality to detect sleep reduction / modifications
Detected FormBook malware
Detected unpacking (changes PE section rights)
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 269235 Sample: Commercial Invoice.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 53 www.wirbelstrom.info 2->53 61 Malicious sample detected (through community Yara rule) 2->61 63 Detected unpacking (changes PE section rights) 2->63 65 Yara detected FormBook 2->65 67 6 other signatures 2->67 11 Commercial Invoice.exe 2->11         started        signatures3 process4 signatures5 85 Maps a DLL or memory area into another process 11->85 14 Commercial Invoice.exe 11->14         started        process6 signatures7 87 Modifies the context of a thread in another process (thread injection) 14->87 89 Maps a DLL or memory area into another process 14->89 91 Sample uses process hollowing technique 14->91 93 Queues an APC in another process (thread injection) 14->93 17 explorer.exe 4 6 14->17 injected process8 dnsIp9 47 suespence99.com 162.241.24.80, 49749, 80 UNIFIEDLAYER-AS-1US United States 17->47 49 www.usp-labs.com 17->49 51 2 other IPs or domains 17->51 41 C:\Users\user\AppData\Local\...\t0uelrlwj.exe, PE32 17->41 dropped 69 System process connects to network (likely due to code injection or exploit) 17->69 71 Benign windows process drops PE files 17->71 22 cmmon32.exe 17->22         started        26 t0uelrlwj.exe 17->26         started        28 t0uelrlwj.exe 17->28         started        30 2 other processes 17->30 file10 signatures11 process12 file13 43 C:\Users\user\AppData\...4318logrv.ini, data 22->43 dropped 45 C:\Users\user\AppData\...4518logri.ini, data 22->45 dropped 73 Detected FormBook malware 22->73 75 Tries to steal Mail credentials (via file access) 22->75 77 Tries to harvest and steal browser information (history, passwords, etc) 22->77 79 Modifies the context of a thread in another process (thread injection) 22->79 32 cmd.exe 22->32         started        81 Maps a DLL or memory area into another process 26->81 34 t0uelrlwj.exe 26->34         started        37 t0uelrlwj.exe 28->37         started        83 Tries to detect virtualization through RDTSC time measurements 30->83 signatures14 process15 signatures16 39 conhost.exe 32->39         started        55 Modifies the context of a thread in another process (thread injection) 34->55 57 Maps a DLL or memory area into another process 34->57 59 Sample uses process hollowing technique 34->59 process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43a2a98bb50daedc36c6f08ab5698638de59f80ad30f9754b8ff690d90c088f3/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 06:59:49 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iorktc5vbwxnynwg6cflk2mghdpft6ak2mhzovfy75uq3egardzq._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
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Formbook
2bde8d605b2ce54ea697cab8be4daff0c2349322b42a96c8a9237ac7eff35314
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590fde182a154cd89b15d88546d60351b9fecb51e04fbbf4affd8d49a618bd23
Formbook
688ac9fd686d48bc6fec56f27e814c48d7849f548ef14d763dd446b61140c388
Formbook
6d0c9ea95d779737b7e9ea2a838a0efede90f1d3c6ce91943e65067a82631b81
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6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
Formbook
9256cc7129421443ba770b55f01042e58fa5af856df1db31e830f147213c2a1c
Formbook
faf1dca0b043816dc1a448c778e8fc03030add15983e04a7cc39851297615c4f
Formbook
+ 2'232 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200817-fk8byez9ex/
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 SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.regulars5.com/evcy/
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/43a2a98bb50daedc36c6f08ab5698638de59f80ad30f9754b8ff690d90c088f3

File information

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

Malspam

Formbook

arj 1b4194788e140b12361bf9db6857c88d308804e30bca16e4f28dca90a2e12fd6

Formbook

Executable exe 43a2a98bb50daedc36c6f08ab5698638de59f80ad30f9754b8ff690d90c088f3

(this sample)

  
Dropped by
MD5 8ae565b2d330951df5ec2016393541d7
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/47087/
  
Dropped by
SHA256 1b4194788e140b12361bf9db6857c88d308804e30bca16e4f28dca90a2e12fd6

Comments