MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736. 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 5 File information Comments
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SHA256 hash: 938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736
SHA3-384 hash: d79dcbb3a2717e81a9d5a72ebe836afb0029117ef5ad143a3d69da86a3a7ae48d941a4b96bea191e7fbd217a7746de5d
SHA1 hash: 939f6fc73122e0748048c779a1eebd6e340d3bbb
MD5 hash: 604eadeb6c2ff6e10801d33156daff00
humanhash: eight-bacon-friend-lamp
File name:604eadeb6c2ff6e10801d33156daff00.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:679'936 bytes
First seen:2021-09-07 10:08:33 UTC
Last seen:2021-09-07 16:49:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:gQHFJLgGWGxiVLLHomtUWyj9D06tiKZVFqfSROFuz03lINPeXqRIKj:EMmtUtu6tDZTqqguz014m6RIY
Threatray 9'067 similar samples on MalwareBazaar
TLSH T195E41B3E19FE23279176C7D5CBE48823F6C098AF3133A96567D787664316A4634C322E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
298
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Contract Request Order.doc
Verdict:
Malicious activity
Analysis date:
2021-09-07 09:54:33 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/229eabb6-2dba-4167-8e97-9ec177661d92

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/185991/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.43380.21689.24391.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5f809667-5cd1-483a-bf3c-3572883c7a4c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846486
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
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: 478913 Sample: OXreL0Ifth.exe Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 31 www.mortgagerefinancinginc.com 2->31 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 8 other signatures 2->43 11 OXreL0Ifth.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\OXreL0Ifth.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 OXreL0Ifth.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.sewingfabulous.com 157.230.123.243, 49712, 80 DIGITALOCEAN-ASNUS United States 18->33 35 www.electrumonline.codes 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 22->47 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-09-07 05:58:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sof7q6ffuud2ijdrrjzqfvk5g3a24wh46vy4lwqknjfbg3xa643a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
7d6cb8f7f367c80349027eada7707f57f758aa3ba31fc4889f6f8bec5ff47cab
Formbook
96d01352b8291a658a602d403e2133d469945ab385d9746db535aba474fc04d0
Formbook
bf47f08eee3ae55a05d7cc1609a916422eb04771d04242ffa60756d922df3412
Formbook
c44b1ee1b7cd66260ed15839ebaa8fc97be83e5b61007a14384f86e14ecf4a20
Formbook
c474dc9d81e08842f527487d032551b0d86e95a0f32fa2ebc7375fdb740c7e42
Formbook
+ 9'057 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:bckt rat spyware stealer trojan
Link:
https://tria.ge/reports/210907-l6smaaffaq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.wonderspirits.com/bckt/
Unpacked files
SH256 hash:
bd39c62e454bea953bfb1da37b102d7758a487fbf10ba126368d52d0edf6ef84
MD5 hash:
eee6db77469f8bd29389645188ec1a5e
SHA1 hash:
34a81c7627e1cd505b953c41dcca3d39d6752684
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3e23fb94-68b6-435f-9d49-5b6343bd610e/
Parent samples :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 hash:
4bb024ac1d994871fc267c509d731b8449032885caac8187be446700901879fd
MD5 hash:
ae6410deceedb4bc31e29a3b91965925
SHA1 hash:
7f6b7f31ee1786c31e0b7979dcbd82c6aa0a4b3b
Link:
https://www.unpac.me/results/3e23fb94-68b6-435f-9d49-5b6343bd610e/
SH256 hash:
758763d712c27c53a8b85de07582c9a250638b557e8dcfbae7c278f810241ac1
MD5 hash:
8b7d29dc138f646510a835ffc76e6796
SHA1 hash:
bff289517dc53acc9e172e3445fc87d82f8ee351
Link:
https://www.unpac.me/results/3e23fb94-68b6-435f-9d49-5b6343bd610e/
SH256 hash:
5169639ca3adef61d018dc24e11cdd23536e6eecaf67d5770ba8512fb35c8b5c
MD5 hash:
07d12e88d8d985e932ad29a2bc35a68f
SHA1 hash:
a06884e826becacde9c2ebb12729bd1fdb0fbdec
Link:
https://www.unpac.me/results/3e23fb94-68b6-435f-9d49-5b6343bd610e/
SH256 hash:
938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736
MD5 hash:
604eadeb6c2ff6e10801d33156daff00
SHA1 hash:
939f6fc73122e0748048c779a1eebd6e340d3bbb
Link:
https://www.unpac.me/results/3e23fb94-68b6-435f-9d49-5b6343bd610e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736

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:Embedded_PE
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Rule name:Embedded_PE
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Rule name:pe_imphash
Create hunting rule
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 938bf878a5a507a424718a7302d55d36c1ae58fcf571c5da0a6a4a136ee0f736

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1583603/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/185991/
  
URLhaus
https://urlhaus.abuse.ch/url/1599707/

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