MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967
SHA3-384 hash: 7878603a2be36623e5f3892e907081f5c7bfb98e85764e1e4e31a6abb100946efe4ff221a1efe8b3d356eb17ce109341
SHA1 hash: 29e472359fb82fe94ad05957a94636a13b38c28c
MD5 hash: 88edb353bbf9259f0e5eb0830df37086
humanhash: double-jig-black-artist
File name:88edb353bbf9259f0e5eb0830df37086
Download: download sample
Signature Formbook
Create hunting rule
File size:945'664 bytes
First seen:2021-08-24 12:31:16 UTC
Last seen:2021-08-24 14:25:40 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 12288:1zcsGI/cxWr4IdS31Bb4TudScrkNIPoZKU+l0/ZDznSvax05pA74wpvcYs01iABd:1jE3L4TudSckIPoFeGb05s4wpvcuH6y
Threatray 5'315 similar samples on MalwareBazaar
TLSH T1FB159C3063C9C294EC1A8EF0166CF79502F235E7B6C4CD6E1ADA724CCE5E9D12A0765B
dhash icon c8e4c2d1f5349c09 (15 x AgentTesla, 12 x Formbook, 8 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
342
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88edb353bbf9259f0e5eb0830df37086
Verdict:
Malicious activity
Analysis date:
2021-08-24 12:41:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f6d76606-1a18-4d8f-84da-a5bfd15529b2

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/181901/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.63814.25826.25991.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8ba53684-9f8b-41a6-8453-4afed64b0e6b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/838236
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 470666 Sample: rUW4VaNgzK Startdate: 24/08/2021 Architecture: WINDOWS Score: 100 41 www71.wixdns.net 2->41 43 www.komfy.store 2->43 45 4 other IPs or domains 2->45 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 8 other signatures 2->59 10 rUW4VaNgzK.exe 7 2->10         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\jYRgjqWL.exe, PE32 10->33 dropped 35 C:\Users\...\jYRgjqWL.exe:Zone.Identifier, ASCII 10->35 dropped 37 C:\Users\user\AppData\Local\...\tmp60A0.tmp, XML 10->37 dropped 39 C:\Users\user\AppData\...\rUW4VaNgzK.exe.log, ASCII 10->39 dropped 69 Uses schtasks.exe or at.exe to add and modify task schedules 10->69 71 Uses ipconfig to lookup or modify the Windows network settings 10->71 73 Tries to detect virtualization through RDTSC time measurements 10->73 75 Injects a PE file into a foreign processes 10->75 14 rUW4VaNgzK.exe 10->14         started        17 schtasks.exe 1 10->17         started        19 rUW4VaNgzK.exe 10->19         started        signatures6 process7 signatures8 77 Modifies the context of a thread in another process (thread injection) 14->77 79 Maps a DLL or memory area into another process 14->79 81 Sample uses process hollowing technique 14->81 83 Queues an APC in another process (thread injection) 14->83 21 ipconfig.exe 14->21         started        24 explorer.exe 14->24 injected 27 conhost.exe 17->27         started        process9 dnsIp10 61 Modifies the context of a thread in another process (thread injection) 21->61 63 Maps a DLL or memory area into another process 21->63 65 Tries to detect virtualization through RDTSC time measurements 21->65 29 cmd.exe 1 21->29         started        47 www.peamon.net 118.27.99.91, 49722, 80 INTERQGMOInternetIncJP Japan 24->47 49 xn--marketingrevolucin-61b.com 192.254.187.234, 49721, 80 UNIFIEDLAYER-AS-1US United States 24->49 51 4 other IPs or domains 24->51 67 System process connects to network (likely due to code injection or exploit) 24->67 signatures11 process12 process13 31 conhost.exe 29->31         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-24 12:32:21 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
300dd45e5b41e94c62a67a53d6ba458816711b5168e91d7a5b04493bd36c5f0d
Formbook
385f5ca91b0a230a14f5d32c79d061a3af0f5533923ad62e1982d1327ed086a4
Formbook
50b80876f6d2a05b4bd054c3207319b11b2518ae4ef3f0193027356e26f856e3
Formbook
52aaa20eef4d75bb209ef1d632a3e5a894358ebbd5ae9e18262868209fa30b7c
Formbook
5823174ff78f251ac5b1b8cd1e1727aaa72f8523aa1aace4b59c9ef549d22148
Formbook
5b7a858563dfd290658d183a0d1c101e39a9dda3327e84c11ef12bc873cb98b9
Formbook
8b4049ea3937e355ad9a551795afcb621fb56991ffc6f1db746861acfd7d6a46
Formbook
93f0775c5a5512759f85db7b3d1c4b3ee7049369cd0dcd1d4f778626621bfa0c
Formbook
+ 5'305 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b6cu loader rat
Link:
https://tria.ge/reports/210824-nktv8l9qts/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.xn--marketingrevolucin-61b.com/b6cu/
Unpacked files
SH256 hash:
9c8fba1bc802a92b1ac498a9899cde595cc9adf16921bf7a0cff2e7926f4df0f
MD5 hash:
5d69fed1b13bc2fc545c8a06e246bd61
SHA1 hash:
6f6ce1d5dd32b1e925091e7cbac6aefad163692e
Link:
https://www.unpac.me/results/6f877058-d429-4656-b0a2-e063a6e1eaa1/
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/6f877058-d429-4656-b0a2-e063a6e1eaa1/
SH256 hash:
68a49f8d55aecf2551c16097b302614bcd617a3d1b565f37cd45a92993d0f065
MD5 hash:
1bfe6840b1414ec3315aa2735431fb71
SHA1 hash:
f6e382e2d534b5edc965d5053b6a4c63488e4c43
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6f877058-d429-4656-b0a2-e063a6e1eaa1/
Parent samples :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 hash:
4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967
MD5 hash:
88edb353bbf9259f0e5eb0830df37086
SHA1 hash:
29e472359fb82fe94ad05957a94636a13b38c28c
Link:
https://www.unpac.me/results/6f877058-d429-4656-b0a2-e063a6e1eaa1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4f611f446620/report/overview.html
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/4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967

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: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 4f611f4466203533e8cd92ac4c802d90ab056c928bcec7c470b8d61570dfc967

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1560038/
Cape
Cape
https://www.capesandbox.com/analysis/181901/

Comments


Avatar
zbet commented on 2021-08-24 12:31:17 UTC

url : hxxp://198.23.251.109/icic/vbc.exe