MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177
SHA3-384 hash: bd05c2b700616fc68555a07a30a8e04ea733f20c4fc25ced29a56a13b20cd4b179ff59125bb75d2c13a3154c2c61743e
SHA1 hash: 4232700e7bf3683a0707d768d5a24694d7d18990
MD5 hash: 64a54f3f66c374b3a4e903e7cea44bdd
humanhash: oregon-hotel-avocado-september
File name:64a54f3f66c374b3a4e903e7cea44bdd.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:886'784 bytes
First seen:2020-09-02 05:52:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4a8c570c3cd27d8aeca1d0717ba85f7e (2 x Loki, 1 x MassLogger, 1 x AgentTesla)
ssdeep 12288:BqHLVhOmSO+T277YbxXi7I4lEEqdaZnhC5ad224d/5NKzfMeTWl1UuJ:ArVOOmbizQ0hC84dRQ+B
Threatray 2'248 similar samples on MalwareBazaar
TLSH E1159E26B2A04833D16316389D1B97B4AD36BE117E28BE472BF5DC4C5F397813839297
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/54165/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.BScope.Trojan.Kryptik.17724.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/457125
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Detected FormBook malware
Detected unpacking (changes PE section rights)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 280947 Sample: Wra81p6I2C.exe Startdate: 02/09/2020 Architecture: WINDOWS Score: 100 51 www.futbolquisqueyano.com 2->51 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for dropped file 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 10 other signatures 2->65 11 Wra81p6I2C.exe 2->11         started        signatures3 process4 signatures5 83 Detected unpacking (changes PE section rights) 11->83 85 Maps a DLL or memory area into another process 11->85 87 Tries to detect virtualization through RDTSC time measurements 11->87 89 Contains functionality to detect sleep reduction / modifications 11->89 14 Wra81p6I2C.exe 11->14         started        process6 signatures7 91 Modifies the context of a thread in another process (thread injection) 14->91 93 Maps a DLL or memory area into another process 14->93 95 Sample uses process hollowing technique 14->95 97 Queues an APC in another process (thread injection) 14->97 17 explorer.exe 6 14->17 injected process8 dnsIp9 45 www.aastacks.com 45.207.120.147, 49736, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 17->45 47 dskcomputer.com 115.178.63.12, 49748, 80 SHEEPLINK-THSheepLinkCoLtdTH Thailand 17->47 49 4 other IPs or domains 17->49 37 C:\Users\user\AppData\...\tt0taz1bqlu.exe, PE32 17->37 dropped 39 C:\Program Files (x86)\...\tt0taz1bqlu.exe, PE32 17->39 dropped 67 System process connects to network (likely due to code injection or exploit) 17->67 69 Benign windows process drops PE files 17->69 22 cscript.exe 1 17 17->22         started        26 tt0taz1bqlu.exe 17->26         started        28 ipconfig.exe 17->28         started        file10 signatures11 process12 file13 41 C:\Users\user\AppData\...\574logrv.ini, data 22->41 dropped 43 C:\Users\user\AppData\...\574logri.ini, data 22->43 dropped 71 Detected FormBook malware 22->71 73 Creates an undocumented autostart registry key 22->73 75 Tries to steal Mail credentials (via file access) 22->75 81 2 other signatures 22->81 30 cmd.exe 1 22->30         started        77 Maps a DLL or memory area into another process 26->77 32 tt0taz1bqlu.exe 26->32         started        79 Tries to detect virtualization through RDTSC time measurements 28->79 signatures14 process15 signatures16 35 conhost.exe 30->35         started        53 Modifies the context of a thread in another process (thread injection) 32->53 55 Maps a DLL or memory area into another process 32->55 57 Sample uses process hollowing technique 32->57 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177/
Threat name:
Win32.Trojan.DelfInject
Create hunting rule
Status:
Malicious
First seen:
2020-09-01 18:40:26 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wnbdo55rxl56mypn2h2nhwmool6lja4uozg55nl3xej3raopsf3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
Similar samples:
0de7b2b7c4e9974b9343de9666287a7137614cbcffc5f89932601b503712002a
Formbook
14bd8d29b58463ac3b3422f269aad880b129cd6354d3a033614d254f8dde4569
Formbook
23b880c48fec41fa4fc337f0ecb3d9cd5ee8f71cd45448049a35bbcb85bb01f5
Formbook
27c2836a432ffef984ec91f36cd49097f0b01561bf3e2f3fde71cc5ecde70541
Formbook
4458df211fccf5c1d24b96ebb7b4191cc94edc0b0e13bbb80ae3919f015297d9
Formbook
a05ae5c56a5a5c24f2c7276f2c669cb33c09f87d75a09030b094f12a4a1a17fa
Formbook
ad660d774f78137622d038976557c8782211dbfd39d2ff9a7a4bcc9279ba0f41
Formbook
b2a437bec36856a90558f9f54873096e6d1324cf487cc265038dbe82e5b03788
Formbook
cddef48cbafa5561f43fd788cfc08215af2c8c4d700bbad363c467e60ad0eda1
Formbook
f8858b64754a58449d20675b33541c9d03bf0e93997b769ff74dddfecb004e57
Formbook
+ 2'238 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200902-vstj8r4p5x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177

File information

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

Web download

Formbook

Executable exe b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/54165/
  
URLhaus
https://urlhaus.abuse.ch/url/451230/
  
Delivery method
Distributed via web download

Comments