MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 495be7b55ddb42db06efc3e8639a6943018b72a64d2917c356250ee517804e1f. 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

SHA256 hash: 495be7b55ddb42db06efc3e8639a6943018b72a64d2917c356250ee517804e1f
SHA3-384 hash: 913dbf10df895d155c613c57ddf2fd8f086672f571751316ac5c5f0c9f4a8112840ef28c2307863d211b83a55ff26543
SHA1 hash: 1130b26c898cc6f9ec5f5685143fc16e9c6f438e
MD5 hash: 3183a71aafdd79fdca046094beb20f80
humanhash: hotel-bakerloo-video-hot
File name:Quotation-Pdf-scan-copy.exe
Download: download sample
Signature Formbook
File size:376'832 bytes
First seen:2022-01-19 15:24:46 UTC
Last seen:2022-01-19 16:37:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:2qPwcYdAbc0CkLF1i7nqjGu/waEOtKRLaoHJ9FoQIyK9/evocS55sVMNdt365cwr:2qPwcYdAbc0C2DiTvGEOwRL/payVgEMA
TLSH T1678412607A78733ACD3D0BF23162238057B16E6E6D32FA994C88D0DC5966F1D46E6723
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed print.exe
Result
Verdict:
UNKNOWN
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 556119 Sample: Quotation-Pdf-scan-copy.exe Startdate: 19/01/2022 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 12 other signatures 2->48 10 Quotation-Pdf-scan-copy.exe 7 2->10         started        process3 file4 34 C:\Users\user\AppData\...\tpfHxHuCJJT.exe, PE32 10->34 dropped 36 C:\Users\...\tpfHxHuCJJT.exe:Zone.Identifier, ASCII 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmp2558.tmp, XML 10->38 dropped 40 C:\Users\...\Quotation-Pdf-scan-copy.exe.log, ASCII 10->40 dropped 50 Uses schtasks.exe or at.exe to add and modify task schedules 10->50 52 Adds a directory exclusion to Windows Defender 10->52 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 Quotation-Pdf-scan-copy.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        process8 process9 27 WWAHost.exe 21->27         started        signatures10 56 Self deletion via cmd delete 27->56 58 Tries to detect virtualization through RDTSC time measurements 27->58 30 cmd.exe 1 27->30         started        process11 process12 32 conhost.exe 30->32         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-01-19 15:25:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:m17y rat spyware stealer trojan
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
Formbook Payload
Formbook
Unpacked files
SH256 hash:
e442856b6a02c92fbcf19178cc690b82fea5b0e4fcfc22fd83d7886afcdcd943
MD5 hash:
59f9e8392b07866a9401e85b521e95a1
SHA1 hash:
c7f001f59bf8ed761bfd98a647bb07c55983dd81
SH256 hash:
32ae121dc4080800855e424910d468824e7eefbee7104881ec0bb485782dac35
MD5 hash:
3a11e57a5e80617ca3303e8694db3388
SHA1 hash:
4f55004d926d5c32a9d4d62cab4106ffc97e0413
SH256 hash:
495be7b55ddb42db06efc3e8639a6943018b72a64d2917c356250ee517804e1f
MD5 hash:
3183a71aafdd79fdca046094beb20f80
SHA1 hash:
1130b26c898cc6f9ec5f5685143fc16e9c6f438e
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe 495be7b55ddb42db06efc3e8639a6943018b72a64d2917c356250ee517804e1f

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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