MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb
SHA3-384 hash: 8a6ba694a70897f64e57ba52c0b7d7c6e06dfe05bd08bd36e1059c9fc0caab0303d3323403ba4aee3dea278a46c82a4f
SHA1 hash: 83a7119eb4ac27913dc7aadd5f72494061d8d3e2
MD5 hash: a3d451d05feae4fbc1911f18d5dd1b11
humanhash: freddie-coffee-virginia-yankee
File name:ORDER PROPOSAL.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:307'568 bytes
First seen:2021-08-17 07:21:03 UTC
Last seen:2021-08-23 11:03:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:j/MfrlhhbobE3TWKZHgtcANruUD9OQ1qoYm:j/gwbUWWghNJD9/wm
Threatray 7'943 similar samples on MalwareBazaar
TLSH T15864DFE6565B95A1C8BED279D04C9A3F0393EA3DE2A2C2CA3B5307C1790C1636DF64C5
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ORDER PROPOSAL.exe
Verdict:
Malicious activity
Analysis date:
2021-08-17 07:24:23 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/13b5aabd-3ce9-4cc6-95e9-ff747cf04dc2

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/179873/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Connection attempt
Sending an HTTP GET request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dc3fb34f-09d0-45d8-8762-3385150645a0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834140
Signature
C2 URLs / IPs found in malware configuration
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)
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
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: 466571 Sample: ORDER PROPOSAL.exe Startdate: 17/08/2021 Architecture: WINDOWS Score: 100 33 www.ec5maricelpepito.com 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 6 other signatures 2->47 11 ORDER PROPOSAL.exe 2 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\ORDER PROPOSAL.exe.log, ASCII 11->31 dropped 57 Injects a PE file into a foreign processes 11->57 15 ORDER PROPOSAL.exe 11->15         started        18 conhost.exe 11->18         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 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.seres.tech 103.139.0.32, 49738, 80 WEST263GO-HKWest263InternationalLimitedHK China 20->35 37 www.indogameonline.com 104.21.41.161, 49741, 80 CLOUDFLARENETUS United States 20->37 39 192.168.2.1 unknown unknown 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 24 wscript.exe 20->24         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-16 23:14:21 UTC
AV detection:
9 of 27 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h7p3c2ezpb6ox3a2jc5x4quqrzdkr2k2set5fsn2kifygftrgdfq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0879dee35833049ac723a101661d8f5a4bb92528b98fa27fc564a44649161862
Formbook
33af2b745b27ae79559ac323d88199f92aa9fe8bb4ffec0963d6f622ec17f24a
Formbook
3f2cdc7783014a37d7ad61ee00c226d5221d4932f4113eb3590a9c9d0447b461
Formbook
4d2ca668cdde851a6389ee4d0fb089d3e125e2d951dbd7201767174ecafa66ad
Formbook
66e06710b095c687448e0b08240a99f84dfbfc24882a2c8c9f5b165f58469d8f
Formbook
6c8b4de0f39caa11127409b3ee06f410b0c5642b840f10822ad40af5745690cb
Formbook
78b11874a66b80ec78962b27c352a643d1a11c7f5cf9273f0db06df3f4f7e76c
Formbook
78f83f782f8d2077dd50d65badb4ed36ec24c029241287f76560e60733b61c29
Formbook
91a4088de46853519f714462e98f3f8abd09ca5c71903639083cc3e1036a8406
Formbook
d457980cebdbfd785a77b0d09249f5bc8cca708f5b5e7fe607f1b538faf977c4
Formbook
+ 7'933 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m4ts rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210817-ezpz337246/
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.activelyfe.com/m4ts/
Unpacked files
SH256 hash:
fe95b13a768d13036017ca27d99b8f662e56f9448ce64616a3ac2db8e6449be9
MD5 hash:
c4448c80b90372c137acf019d185e3ce
SHA1 hash:
e624d9fb808b8539f110849d01559a25602edda9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f9b485f3-4f07-45bf-af89-fbfb289a321b/
SH256 hash:
c4bbb16f2fc1741f2dc49d5e512b914135a8f7aeebe6a8f621174c936729fbe1
MD5 hash:
350543286b08fdc83d150e68ba3fe4ef
SHA1 hash:
e95102e4208fe03cbcbdeb6c207a580a19bb1fab
Link:
https://www.unpac.me/results/f9b485f3-4f07-45bf-af89-fbfb289a321b/
SH256 hash:
3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb
MD5 hash:
a3d451d05feae4fbc1911f18d5dd1b11
SHA1 hash:
83a7119eb4ac27913dc7aadd5f72494061d8d3e2
Link:
https://www.unpac.me/results/f9b485f3-4f07-45bf-af89-fbfb289a321b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3fdfb1689978/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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
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 3fdfb16899787cebec1a48bb7e42908e46a8e95a9127d2c9ba520b83167130cb

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/179873/

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