MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
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SHA256 hash: dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500
SHA3-384 hash: 956c9006e67b531c34ab801252053eec7e56bc6bab51ecb220c26ebfe47c66f74120a0e62c96d8db2efeefac7a11f768
SHA1 hash: 2e637361b14c82d64b152a46ac266c08546494a0
MD5 hash: fde9e531e09739823526fc9ff4385a2a
humanhash: violet-cup-moon-undress
File name:fde9e531e09739823526fc9ff4385a2a
Download: download sample
Signature Formbook
Create hunting rule
File size:917'504 bytes
First seen:2022-03-03 09:51:41 UTC
Last seen:2022-03-03 12:17:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:VhR/IDTviQxhG2xikWMOA6e1thREfnWOkKq+hIAM1kAn8thjKkoVi:VWLVhG/kcygnO+hIs68aV
Threatray 14'516 similar samples on MalwareBazaar
TLSH T16C15D00438E68034F9768BB1CEC4E7F18B6EF625E589A0F254005E557646BBE8C49EFC
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/246932/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39127700.27206.22675.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP 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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d4757d80-023b-4a92-a4b7-195bd78bf1af
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/950033
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Performs DNS queries to domains with low reputation
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)
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: 582515 Sample: y8gygXUsGY Startdate: 03/03/2022 Architecture: WINDOWS Score: 100 29 yuaq95.g.ngxfence.org 2->29 31 www.thesilkpillowcase.online 2->31 33 www.tenlog029.xyz 2->33 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 10 other signatures 2->41 11 y8gygXUsGY.exe 3 2->11         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\y8gygXUsGY.exe.log, ASCII 11->27 dropped 51 Tries to detect virtualization through RDTSC time measurements 11->51 15 y8gygXUsGY.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 Queues an APC in another process (thread injection) 15->59 18 explorer.exe 15->18 injected process9 process10 20 WWAHost.exe 18->20         started        signatures11 43 Self deletion via cmd delete 20->43 45 Modifies the context of a thread in another process (thread injection) 20->45 47 Maps a DLL or memory area into another process 20->47 49 Tries to detect virtualization through RDTSC time measurements 20->49 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-03-03 08:08:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
30 of 42 (71.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
25c2cea54ad6c1b93026807e6a34e7278f4dbdb85fdd635cbcc83e7f247e3f19
Formbook
2af6b1cfe8812e9e1679f3a6a58a158420e771341dbea64f4853d6966bb589b2
Formbook
5645d9e38c998f5db43ae93e35339d7dca0a96b81f806b370624e7410e2eea0a
Formbook
6077a6a5a6270bd0cbd94bd424294d9c1afe129e72ac671db981245f4e294234
Formbook
60b97b4d45e3850d57a661bf37987909c1f99096384123594cc1b79d5449348f
Formbook
9655ee4ca1167f87d9245041ab59e861d6b3bdde7897a3b4cb2deee8550bdaaa
Formbook
9d42e6621d13c43c63721e4f9b4f63c00ef1d7e97cb0fe061bd19cbcc6e2e735
Formbook
9f033092c39f84850b90bbeb99c2fa53bb621a8467cdf399f77e08bfa892548d
Formbook
aea459fb282282fc886f02283b2cfe1da12a6208e14859ffeb7f84a45a452bba
Formbook
+ 14'506 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:mc3w loader rat
Link:
https://tria.ge/reports/220303-lv3ywaadf8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
2fa3951230e8d4f27a51b30f3373861dc61c30a8976ba1dcca56fce394446269
MD5 hash:
98df84556882da2c2ad686ed22fb365e
SHA1 hash:
1602fa4413b7deebfe52bddb194be05bf30bc574
Link:
https://www.unpac.me/results/20303763-678c-4843-bd36-4fed69d0b50f/
SH256 hash:
e3bdaf9e98eb65a070cf4424bc123e57ade151c41e4a0d375e769749155c1715
MD5 hash:
78a25e75b94923e889ecd100349facbe
SHA1 hash:
6b3f8db525d3c98f92ed480e664ab8ee9458340b
Link:
https://www.unpac.me/results/20303763-678c-4843-bd36-4fed69d0b50f/
SH256 hash:
9c119757a00fafa46cb16a3ec0c3cc8b2c70551b1fc6a6e6c76be20483070af4
MD5 hash:
0227884687399c2da27555dcf85147e8
SHA1 hash:
e1e4130d6625fc8c3e9081ed4806078c9e98d227
Link:
https://www.unpac.me/results/20303763-678c-4843-bd36-4fed69d0b50f/
SH256 hash:
74d0dd17ce636a6a0c48dc6b211cd358ecb602efe165ec7b60d23ddda9462b4b
MD5 hash:
88f5639a50afd993c76ea84668a4e285
SHA1 hash:
4f85dafcecdd760abe0b63ee9ec6e1bc93ffdf38
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/20303763-678c-4843-bd36-4fed69d0b50f/
Parent samples :
25c2cea54ad6c1b93026807e6a34e7278f4dbdb85fdd635cbcc83e7f247e3f19
60b97b4d45e3850d57a661bf37987909c1f99096384123594cc1b79d5449348f
aea459fb282282fc886f02283b2cfe1da12a6208e14859ffeb7f84a45a452bba
9f033092c39f84850b90bbeb99c2fa53bb621a8467cdf399f77e08bfa892548d
2af6b1cfe8812e9e1679f3a6a58a158420e771341dbea64f4853d6966bb589b2
dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500
8609b523be1b22061f1c01a8587f04874836d490196cfa09e8c1eed005f298a0
SH256 hash:
dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500
MD5 hash:
fde9e531e09739823526fc9ff4385a2a
SHA1 hash:
2e637361b14c82d64b152a46ac266c08546494a0
Link:
https://www.unpac.me/results/20303763-678c-4843-bd36-4fed69d0b50f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/dfd8941401c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 dfd8941401c6e44bf380f982cd4b78d847f87fd3ea364418b00ceec92f97c500

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2073569/
Cape
Cape
https://www.capesandbox.com/analysis/246932/

Comments


Avatar
zbet commented on 2022-03-03 09:51:43 UTC

url : hxxp://192.210.218.110/80/vbc.exe