MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618
SHA3-384 hash: 465af6453a27c5aed2e6cff0e8f7b385df4dfe4ac57d926813efb43d5fa514aac1c6fd3c0e20de14670ab731b5df3315
SHA1 hash: a1b91cd66d4c3324bd1d58310f41c93cca25209a
MD5 hash: 91fd7c0ae9a2360c54e296b92e5be179
humanhash: delaware-tennessee-lima-eighteen
File name:91fd7c0ae9a2360c54e296b92e5be179.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:674'304 bytes
First seen:2021-09-02 17:58:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:CNUZhgB5FJLgGPKwM16BKCgqc18vun2uhyEaBUKIDrGD2sJMGN2A77SE:CeZhwun6B6qIbnRfaB1D2Nil7
Threatray 9'003 similar samples on MalwareBazaar
TLSH T165E4FA3E18FE23279176C7E5CBE48823F6D098AF3133A96597D747264316A4635C322E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
91fd7c0ae9a2360c54e296b92e5be179.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-02 18:11:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d39f6a94-d9e2-42d6-8ad1-76a05450bf58

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/184875/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16f218f2-14b4-42fb-a9e1-b360f7169138
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844244
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 476675 Sample: PKLBpffwsn.exe Startdate: 02/09/2021 Architecture: WINDOWS Score: 100 32 www.thvsjwjvy.icu 2->32 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 8 other signatures 2->50 11 PKLBpffwsn.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\PKLBpffwsn.exe.log, ASCII 11->30 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 15 PKLBpffwsn.exe 11->15         started        signatures6 process7 signatures8 66 Modifies the context of a thread in another process (thread injection) 15->66 68 Maps a DLL or memory area into another process 15->68 70 Sample uses process hollowing technique 15->70 72 Queues an APC in another process (thread injection) 15->72 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.thechikspot.com 209.99.40.222, 49723, 80 CONFLUENCE-NETWORK-INCVG United States 18->34 36 moneysavingkitchen.com 192.0.78.25, 49726, 80 AUTOMATTICUS United States 18->36 38 7 other IPs or domains 18->38 52 System process connects to network (likely due to code injection or exploit) 18->52 22 mstsc.exe 12 18->22         started        signatures11 process12 dnsIp13 40 www.optima9.com 22->40 42 optima9.com 22->42 54 Self deletion via cmd delete 22->54 56 Modifies the context of a thread in another process (thread injection) 22->56 58 Maps a DLL or memory area into another process 22->58 60 Tries to detect virtualization through RDTSC time measurements 22->60 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 07:40:48 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6pzp43j64ynxyery6stasxcka7wd2ypejv7y5r6a2a46bydkyma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
12de2f015642b7430fdf5e76d186dc2c38161f4e2238e84d8dd9e4125d3bceec
Formbook
3c30562fe4d02debdc7ff0d3a101e4807010b779166bbafd25ae0fd068b7255a
Formbook
4474153b57e54b4c94dc0c4e063dde0a7f296bc8f20a7a5d41d99d91c4239cc0
Formbook
5dd7c49d8d8da5f95a33098900d2968aa7d98fd573b42974507030d12f7e17ff
Formbook
977576652c35a9f68bd5e609bc4628b521ee75dfa0b0d9d82deb6de35ad0d080
Formbook
a49278e32de8c758012e44c3519591a7997b261e453827ff7b11158786563430
Formbook
b5a2c6ad35eae14ca13d811a3a1a445fabee8a8aa63625f25520375a20fe44bd
Formbook
db501e2aeb30291f1b2847947dc9693f0415990b5fde834f0d5137c7cc889f10
Formbook
fdd78bbf6d05b69fbdcaa24727822f1ec7e9b652266ac34ed69916537e6aeff2
Formbook
+ 8'993 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:imi7 loader rat
Link:
https://tria.ge/reports/210902-wkqwnsecal/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.southerngiggle.com/imi7/
Unpacked files
SH256 hash:
ea88e40b750a9f44289afb18b9096c14c1a0d81ae92bd236fe3fd15bf9f8dd27
MD5 hash:
8110d942a1afd5a03fb68ef51e9bce54
SHA1 hash:
d22bf05fd3f760e6f65d5ab239adf71c25f0be09
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/88e177df-022f-45b7-a490-d089eae60f13/
Parent samples :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 hash:
964fc794d4b37f30ca85da1207c245e8c6a09c53daddf5e78472f9c0643be5a2
MD5 hash:
71dadf1f1c489fa6bda1440443a450df
SHA1 hash:
e664ebffd78215120c8aa3ce4972fe3529d0e6e0
Link:
https://www.unpac.me/results/88e177df-022f-45b7-a490-d089eae60f13/
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/88e177df-022f-45b7-a490-d089eae60f13/
SH256 hash:
bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618
MD5 hash:
91fd7c0ae9a2360c54e296b92e5be179
SHA1 hash:
a1b91cd66d4c3324bd1d58310f41c93cca25209a
Link:
https://www.unpac.me/results/88e177df-022f-45b7-a490-d089eae60f13/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe bf9f97f369f730dbe091c7a5304ae2503f61eb0f226bfc763e0681cf07035618

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1585253/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/184875/

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