MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66c90051427f1fa801535028868a50ca3302392836ceaf8804c992e9f20dc372. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: 66c90051427f1fa801535028868a50ca3302392836ceaf8804c992e9f20dc372
SHA3-384 hash: 0c878eb8413a011f014ed5c3c54e9ac02e88a94a49706261f8040da74b10c189cddee16e0ae72bc4fc88039378e93596
SHA1 hash: 70f9c059992aeeac786bbe71b86fecfa1e0392f1
MD5 hash: 269468e5f6029e22c02575b3095ec5c3
humanhash: lactose-romeo-zulu-wisconsin
File name:NEW BESTONE INDUSTRY AND TRADE CO ORDER.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:929'792 bytes
First seen:2020-11-09 15:23:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:V9bscvXsmIkiWA1d3aZRJJ1bGc11PDBrwJQohfuDeUCmF:NvXgkiWA1xa5ScDPkhm
Threatray 2'877 similar samples on MalwareBazaar
TLSH 39158C194A158F5FD93A0335802AC24043F58DD552A7EBE52DC0B8EF6EFA740E72B1DA
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: slot0.85xainji.com
Sending IP: 45.145.185.142
From: Melika ÖZDEMİR ARSLAN <office@85xainji.com>
Subject: ОТН: 2020-11-09 ORDER
Attachment: po192586.lzh (contains "NEW BESTONE INDUSTRY AND TRADE CO ORDER.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/526542
Signature
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
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 312365 Sample: NEW BESTONE INDUSTRY AND TR... Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 31 www.bfkbio.com 2->31 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AntiVM_3 2->43 45 6 other signatures 2->45 11 NEW BESTONE INDUSTRY AND TRADE CO ORDER.exe 3 2->11         started        signatures3 process4 file5 29 NEW BESTONE INDUST...DE CO ORDER.exe.log, ASCII 11->29 dropped 55 Injects a PE file into a foreign processes 11->55 15 NEW BESTONE INDUSTRY AND TRADE CO ORDER.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.ufanba.com 172.67.203.173, 49729, 80 CLOUDFLARENETUS United States 18->33 35 webparked.com 143.95.236.133, 49728, 80 ASMALLORANGE1US United States 18->35 37 2 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 control.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/66c90051427f1fa801535028868a50ca3302392836ceaf8804c992e9f20dc372/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2020-11-09 09:11:17 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m3eqaukcp4p2qaktkauincsqzizqeojig3hk7caezgjot4qnynza._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
3166a5f6f1e3106d5e14ae801aa28fc50587edabf919e3cce2dbb3576cc20a5e
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718d659864d771ebadf82d8b5461d39c2bd6bd514ea2d2273d2821a23ab28ed0
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77707d4b60a7193c8c7e93d9c97dcd89513ef4ce1c8e19aa6780920c09e03c27
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ebd88634ecfbdc7e88bca32a0b22fa35e24c9feb309799128f3d12d2cceac224
Formbook
fa1c05c7ea1e94e08982755ca1d13051a6cd334fa3e93aa98b5bcc2ebb910f59
Formbook
+ 2'867 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201109-tyk5ataryx/
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.oyama-kenkou.com/slk/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/66c90051427f1fa801535028868a50ca3302392836ceaf8804c992e9f20dc372

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:Ping_Del_method_bin_mem
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Author:James_inthe_box
Description:cmd ping IP nul del

File information

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

Malspam

Formbook

rar 7c8d29d9827e93483938c5d3ec47c7e9ec8e9c4d627e6fb46a99415f49ad4124

Formbook

Executable exe 66c90051427f1fa801535028868a50ca3302392836ceaf8804c992e9f20dc372

(this sample)

  
Dropped by
MD5 9764c56243e24926c34a0bf592fa73f6
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7c8d29d9827e93483938c5d3ec47c7e9ec8e9c4d627e6fb46a99415f49ad4124

Comments