MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be
SHA3-384 hash: c039d76e7068a483cde948a619917cb15a74782c343decde0a6e37dd4b28747f6024caa4074de68c1eabfd6baa107c61
SHA1 hash: 9786d4bae4ff8e13a909a265d75f423c18925ac5
MD5 hash: 07b3ff096dc668444a580754e2a465b8
humanhash: lithium-uniform-princess-harry
File name:07b3ff096dc668444a580754e2a465b8.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:702'464 bytes
First seen:2021-02-23 17:36:14 UTC
Last seen:2021-02-23 20:00:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:bh80vnPv61ig2j78AEb/rFrk9sXSeavOUBl:WwP+28AEe/Os
TLSH 2DE4CF3122599F4DD53EA37D8956521FE3FAA237E322E54F7CAD01CB0D62E014B62B12
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118752/
Detection(s):
SecuriteInfo.com.FileRepMalware.32384.14961.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/615816
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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)
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: 356916 Sample: vB1Zux02Zf.exe Startdate: 23/02/2021 Architecture: WINDOWS Score: 100 31 www.gallerybrows.com 2->31 33 gallerybrows.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 7 other signatures 2->47 11 vB1Zux02Zf.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\vB1Zux02Zf.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 vB1Zux02Zf.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 35 pandabutik.com 78.142.208.189, 49758, 80 VERIDYENVeridyenBilisimTeknolojileriSanayiveTicaretLi Turkey 18->35 37 illfingers.com 162.241.217.138, 49764, 80 UNIFIEDLAYER-AS-1US United States 18->37 39 22 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 msdt.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-02-23 17:37:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7dzddgfrtbe3qnyk7a7ats67aegvsubrkqb6mn5rw3lufmvemc7a._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210223-s9caeg2fl6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.rizrvd.com/bw82/
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/ec8c4661-ca87-4666-a8a2-18410de8299e/
SH256 hash:
f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be
MD5 hash:
07b3ff096dc668444a580754e2a465b8
SHA1 hash:
9786d4bae4ff8e13a909a265d75f423c18925ac5
Link:
https://www.unpac.me/results/ec8c4661-ca87-4666-a8a2-18410de8299e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be

File information

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

Web download

Formbook

Executable exe f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1025172/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/118752/

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