MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f44cd8c2df04f8921d2d50831c0268b93d48fb0a149c3783331adaec733a47ed. 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: f44cd8c2df04f8921d2d50831c0268b93d48fb0a149c3783331adaec733a47ed
SHA3-384 hash: 704649123ada3b1d79b54409b5ac7427d2098fb13685e33d803dabe6a2ac978058104a74610b6a6d14734694dc5aba2d
SHA1 hash: d1c5f88696eebaca28082de31de3a48447c84203
MD5 hash: cd420f4d4d30edc17793112524ea0353
humanhash: beer-connecticut-red-yankee
File name:Payment Invoice .exe
Download: download sample
Signature FormBook
Create hunting rule
File size:772'608 bytes
First seen:2020-08-30 06:00:10 UTC
Last seen:2020-08-30 07:19:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 87d38b0593a69844f992edae56f71952 (1 x FormBook)
ssdeep 12288:7nSZdWoQzbJTlF1BtgPJ2esX58euxRLIC9hRWU+iHXRuK:TMGzrnE2espCjLIqb+iBu
Threatray 2'250 similar samples on MalwareBazaar
TLSH 65F4AF62B2EC4837D16B273D8C1B5774AC29BE112E2859862BE4DD4C5F39F9138392D3
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: rabya.com.sa
Sending IP: 23.106.223.212
From: Chief Accountant <abdallah.ajaj@rabya.com.sa>
Subject: Payment Confirmation
Attachment: Payment Invoice .arj (contains "Payment Invoice .exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53013/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
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/454405
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)
Initial sample is a PE file and has a suspicious name
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)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279575 Sample: Payment Invoice .exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 48 www.businesscreditkings.com 2->48 50 businesscreditkings.com 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for dropped file 2->54 56 Antivirus / Scanner detection for submitted sample 2->56 58 10 other signatures 2->58 11 Payment Invoice .exe 2->11         started        signatures3 process4 signatures5 74 Maps a DLL or memory area into another process 11->74 14 Payment Invoice .exe 11->14         started        process6 signatures7 76 Modifies the context of a thread in another process (thread injection) 14->76 78 Maps a DLL or memory area into another process 14->78 80 Sample uses process hollowing technique 14->80 82 Queues an APC in another process (thread injection) 14->82 17 explorer.exe 6 14->17 injected process8 dnsIp9 42 fineenterprisesagra.com 51.89.7.190, 49726, 80 OVHFR France 17->42 44 thewestoverpartnership.com 77.72.4.12, 49739, 80 KRYSTALGR United Kingdom 17->44 46 3 other IPs or domains 17->46 34 C:\Users\user\AppData\...\9rzxpm0sle.exe, PE32 17->34 dropped 36 C:\Program Files (x86)\A8poh\9rzxpm0sle.exe, PE32 17->36 dropped 60 System process connects to network (likely due to code injection or exploit) 17->60 62 Benign windows process drops PE files 17->62 22 chkdsk.exe 1 17 17->22         started        26 9rzxpm0sle.exe 17->26         started        file10 signatures11 process12 file13 38 C:\Users\user\AppData\...\J1Rlogrv.ini, data 22->38 dropped 40 C:\Users\user\AppData\...\J1Rlogri.ini, data 22->40 dropped 64 Detected FormBook malware 22->64 66 Creates an undocumented autostart registry key 22->66 68 Tries to steal Mail credentials (via file access) 22->68 72 3 other signatures 22->72 28 cmd.exe 1 22->28         started        70 Maps a DLL or memory area into another process 26->70 30 9rzxpm0sle.exe 26->30         started        signatures14 process15 process16 32 conhost.exe 28->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f44cd8c2df04f8921d2d50831c0268b93d48fb0a149c3783331adaec733a47ed/
Threat name:
Win32.Trojan.LokiBot
Create hunting rule
Status:
Malicious
First seen:
2020-08-29 13:47:08 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6rgnrqw7at4jehjnkcbryatixe6ur6ykcsodpaztdlnoy4z2i7wq._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
0de7b2b7c4e9974b9343de9666287a7137614cbcffc5f89932601b503712002a
FormBook
14bd8d29b58463ac3b3422f269aad880b129cd6354d3a033614d254f8dde4569
FormBook
27c2836a432ffef984ec91f36cd49097f0b01561bf3e2f3fde71cc5ecde70541
FormBook
4458df211fccf5c1d24b96ebb7b4191cc94edc0b0e13bbb80ae3919f015297d9
FormBook
a05ae5c56a5a5c24f2c7276f2c669cb33c09f87d75a09030b094f12a4a1a17fa
FormBook
ad660d774f78137622d038976557c8782211dbfd39d2ff9a7a4bcc9279ba0f41
FormBook
b2a437bec36856a90558f9f54873096e6d1324cf487cc265038dbe82e5b03788
FormBook
b3423777b1bafbe661edd1f4d3d98e72fcb48394764ddeb57bb913b881cf9177
FormBook
cddef48cbafa5561f43fd788cfc08215af2c8c4d700bbad363c467e60ad0eda1
FormBook
f8858b64754a58449d20675b33541c9d03bf0e93997b769ff74dddfecb004e57
FormBook
+ 2'240 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat persistence spyware trojan stealer family:formbook
Link:
https://tria.ge/reports/200830-4wrcrnn4zn/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Formbook Payload
Formbook
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/f44cd8c2df04f8921d2d50831c0268b93d48fb0a149c3783331adaec733a47ed

File information

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

Malspam

FormBook

arj 2d518ea743cf49538bc0a6c07a35379798237ed4ec112de5681ab1e501584a72

FormBook

Executable exe f44cd8c2df04f8921d2d50831c0268b93d48fb0a149c3783331adaec733a47ed

(this sample)

  
Dropped by
MD5 3925ae067970bf8755914d5f3caed59e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 2d518ea743cf49538bc0a6c07a35379798237ed4ec112de5681ab1e501584a72
Cape
Cape
https://www.capesandbox.com/analysis/53013/

Comments