MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e
SHA3-384 hash: 67d1022efa8ebbd1214ab4f1e2cfd18011812199e4dee93cf5e9fec887e7d0c2bc13ae5daf1694d439a6d49ae036d31b
SHA1 hash: 6aa58e42cc0459bd73db0be275df61f329f1c4db
MD5 hash: ea8bb1ef138840f26fec47eef3574509
humanhash: island-seventeen-dakota-hawaii
File name:DebitNote11_Owners Invoices.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:705'536 bytes
First seen:2021-02-01 10:01:40 UTC
Last seen:2021-02-09 15:23:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:E4WAdXNffh8kyXUKnjZst04IQKchBknzIZb9o/Yy5Qf:xPdXNffhWXUMjZE04IbzIVMYy5S
Threatray 3'681 similar samples on MalwareBazaar
TLSH 5EE49D2137E85B59F0BEAB75993580208BF5F917C732DA9D2D80209D1DA2BC0CA77763
Reporter GovCERT_CH
Tags:FormBook

Intelligence

File Origin
# of uploads :
14
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DebitNote11_Owners Invoices.exe
Verdict:
Malicious activity
Analysis date:
2021-02-01 01:38:37 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/eddcf61c-f6ca-47c5-80e9-40b6584443ae

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/114473/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system 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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/595200
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 346637 Sample: DebitNote11_Owners Invoices.exe Startdate: 01/02/2021 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 11 other signatures 2->55 10 DebitNote11_Owners Invoices.exe 7 2->10         started        process3 file4 33 C:\Users\user\AppData\Local\...\tmp9CD4.tmp, XML 10->33 dropped 35 C:\...\DebitNote11_Owners Invoices.exe.log, ASCII 10->35 dropped 37 C:\Users\user\AppData\...\asHmhZoQYD.exe, PE32 10->37 dropped 65 Injects a PE file into a foreign processes 10->65 14 DebitNote11_Owners Invoices.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 67 Modifies the context of a thread in another process (thread injection) 14->67 69 Maps a DLL or memory area into another process 14->69 71 Sample uses process hollowing technique 14->71 73 Queues an APC in another process (thread injection) 14->73 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 39 forexexpoaward.com 50.87.253.98, 49765, 80 UNIFIEDLAYER-AS-1US United States 19->39 41 rzpte.com 51.89.123.225, 49764, 80 OVHFR France 19->41 43 22 other IPs or domains 19->43 57 System process connects to network (likely due to code injection or exploit) 19->57 25 ipconfig.exe 12 19->25         started        signatures10 process11 dnsIp12 45 www.cancunpolo.com 25->45 47 cancunpolo.com 25->47 59 Modifies the context of a thread in another process (thread injection) 25->59 61 Maps a DLL or memory area into another process 25->61 63 Tries to detect virtualization through RDTSC time measurements 25->63 29 cmd.exe 1 25->29         started        signatures13 process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-02-01 02:15:26 UTC
AV detection:
3 of 46 (6.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nepuz3wfrr2i4howknjidswprxft6l2za54w3pxp5qb4s5o3wkha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
148007b32a311769a958c3f87c6c836b14457f17dbe6a9a0188b0f68b3c30b40
Formbook
3ab5b91315aed3147ec6d8038d620caa9e068a1b200c9c1631a1fb036e839daf
Formbook
3ef295a80356b8b9f2e328c3ed296d491fb1a70d7e315bf2a17e8ac6bc1382a4
Formbook
86879b01844ab067722fd2ca12bf5a666136348ca9a7f72a33ca42d9707e84d0
Formbook
9763034a6f6e93c907471ca361e619f5fe5ec0b3aeb301cd046bd877c62aaea7
Formbook
b3291d1f731c8e7408bbae7e36242e7223d24d7b3ef0fa2b7f07950be8dd3462
Formbook
c88ff1a1487ac7559ec7f8104f6b1cd8231b6a7f0a52020c356c460d2b608d9a
Formbook
dd9c6267a87c89067d157e28d6f3ca17f958871f3d403609ed72dad80514e226
Formbook
e7091e7da366f0b1d4acbc1295841c6f7d1ab9412a9fe3fd9341c9d94274c457
Formbook
f1c600a86d9492512f5c80574f885bc0b2c0f058419f58b1c8800eb6e1502713
Formbook
+ 3'671 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader ransomware rat spyware stealer trojan
Link:
https://tria.ge/reports/210201-s6w41fswls/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
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
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.digitalneeds.tech/ivay/
Unpacked files
SH256 hash:
6371265c1e6b6a39d54a7bb9485b7ef14bf338c13e0f0e8e4e81f3ac802eaac8
MD5 hash:
4449dbe70422f2dbc5b21121c18ba3d6
SHA1 hash:
be147522e8dd0198a8f4478c5b02550893331d45
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/35a01c29-20fd-4065-aa14-967c082f3428/
Parent samples :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 hash:
d6ac94939e1a7c4970b5762b2e87f80ba62c637722428bb7695e4b0ab0e532af
MD5 hash:
8a9645c3403eecad337d866d563e38d1
SHA1 hash:
8f93977d7a32aedad622833fb3ebf0ae09753496
Link:
https://www.unpac.me/results/35a01c29-20fd-4065-aa14-967c082f3428/
SH256 hash:
f88e130b8243dfe3b95cc5ddb4ac61312405488a8f350f71738865aaa8808433
MD5 hash:
f60e72764b601ad15a2715b69b9ef30f
SHA1 hash:
8e485ae4ba77727a701ad5d750952c6b578c856d
Link:
https://www.unpac.me/results/35a01c29-20fd-4065-aa14-967c082f3428/
SH256 hash:
691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e
MD5 hash:
ea8bb1ef138840f26fec47eef3574509
SHA1 hash:
6aa58e42cc0459bd73db0be275df61f329f1c4db
Link:
https://www.unpac.me/results/35a01c29-20fd-4065-aa14-967c082f3428/
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/691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo

File information

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

Malspam

Formbook

zip 2400c86e21e09b2ecbcb6d208ada7c33d31524b1e1dab25793cb624821c2c21e

Formbook

Executable exe 691f4ceec58c748e1dd6535281cacf8dcb3f2f5907796dbeefec03c975dbb28e

(this sample)

  
Dropped by
MD5 9658385e12567a1fbd6ecba419f021ac
  
Dropped by
SHA256 2400c86e21e09b2ecbcb6d208ada7c33d31524b1e1dab25793cb624821c2c21e
  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/114473/

Comments