MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358
SHA3-384 hash: 2fe5582534da2618d0b42c098298be8dad136ef1c56ff5a0e27b71a76515e5972a6fc28ce0c2660944f18919fc99f8c6
SHA1 hash: f423fed0f335e5c31d7b799aba25469420fb6009
MD5 hash: acbc7357e4fb7d8d4874ecbeb0c5bd0f
humanhash: north-fifteen-artist-saturn
File name:commercial invoice_010202201.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:244'072 bytes
First seen:2022-01-14 09:16:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owJUILHa3T7IFWaZHvyW8od2rrwPs4mAhN4ZY2rB3q:uILHIT7IY4vyW8o6wPs4mAhNORq
Threatray 12'892 similar samples on MalwareBazaar
TLSH T10F34239831C548BBE0E60AF20BB6DBF6F6E2E700107245877B71DF7AB9664930472352
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
248
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
commercial invoice_010202201.exe
Verdict:
Malicious activity
Analysis date:
2022-01-14 09:58:29 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/517903b6-bd9d-4e9d-a3a5-9d4c7f2c1015

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/219269/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
DNS request
Searching for synchronization primitives
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe expand.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/61e13f94f2e8ec86fefc1df0/reports/1fe47889-7bd8-40fb-a6de-85ba8a6da63f/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7f2cc985-19dc-473d-822e-94c07c945b67
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/920616
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 dropped file
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)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 553094 Sample: commercial invoice_010202201.exe Startdate: 14/01/2022 Architecture: WINDOWS Score: 100 31 www.laraful.com 2->31 33 laraful.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 9 other signatures 2->47 11 commercial invoice_010202201.exe 19 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\Temp\...\uajs.dll, PE32 11->29 dropped 61 Injects a PE file into a foreign processes 11->61 15 commercial invoice_010202201.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.stardomfrokch.xyz 18->35 37 ludowinners.online 109.106.254.15, 49815, 80 NETNET-ASRS Serbia 18->37 39 13 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 51 Performs DNS queries to domains with low reputation 18->51 22 colorcpl.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358/
Threat name:
Win32.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2022-01-14 03:46:01 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 43 (62.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=op2frv7drk3urn5x2oz6nag3t2yi3bc4dmnxze22n3sfhwhqgnma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
64a668add3d7f3bbcc0ef6acb25529c70df773d74e7e17a4a8fd8c95e81ee8bd
Formbook
8b72de010ebd70d5fea76372b2984d99c0b844205c56a9379778b771db47ce1e
Formbook
9998ff1d42d8af0fcc166bea36887eebf182e91d1816853d9f80e6cbbbaf9145
Formbook
ac4a0328d512526f20122f0399d557b1334f3b2ac264d9e749d6d2788e956b2e
Formbook
d00c073d20fa9d33eb8326798f0853be03a7f13e33bae3ce4c25c44bf25040f4
Formbook
d1a716b9f2d3c4be4527b077dd5da726ffb4008935c7223116a3aa64b4f5f8f0
Formbook
d78094f3b6eac87e2d4249671bdc4e044afb31e2e78aac8f2db7186c6d5b6db1
Formbook
f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032
Formbook
+ 12'882 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:igwa loader rat
Link:
https://tria.ge/reports/220114-k84xnafdc2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Unpacked files
SH256 hash:
25bba27f31d8b5e3a1332768f47db4f74ce9148611a3aa4c2bfe5f3c5258bb38
MD5 hash:
dad43446a578a53bc90250a656a1ee2a
SHA1 hash:
29510706a2baa37c3b578e85827a2ad1800b8932
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/97b947fc-2b06-4384-b6fe-45f14daa2fca/
Parent samples :
d1a716b9f2d3c4be4527b077dd5da726ffb4008935c7223116a3aa64b4f5f8f0
73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358
3f76d69c552a61ab3d1207fb64ac3aecf812e98f99c5413a9472d59859c38077
fd86ed836eaae451df45e757be525d3c9260d72e0c8af2eb85f1832a8499eac1
2e3edcdf1ab052a2e0fbd8ffdaf213876b3571b23ff74f5e157ce24a1155be81
ea928c88deed19528dead0fc786936f6ac102f94905ce1bff6df678b7c560726
SH256 hash:
900e115c271f29c66454e91f168be012c2ae5d307c86b70e8d595e0bade388c6
MD5 hash:
85abde39747f6b521228f37be34d4869
SHA1 hash:
8b8f1c057d7369c6fea384daf46412f635ddf465
Link:
https://www.unpac.me/results/97b947fc-2b06-4384-b6fe-45f14daa2fca/
SH256 hash:
73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358
MD5 hash:
acbc7357e4fb7d8d4874ecbeb0c5bd0f
SHA1 hash:
f423fed0f335e5c31d7b799aba25469420fb6009
Link:
https://www.unpac.me/results/97b947fc-2b06-4384-b6fe-45f14daa2fca/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 73f458d7e38ab748b7b7d3b3e680db9eb08d845c1b1b7c935a6ee453d8f03358

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/219269/

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