MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b76cdf3f203937fdd5a57710faf9c4d78281f4b893e8caff17a5053bb741bffc. 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: b76cdf3f203937fdd5a57710faf9c4d78281f4b893e8caff17a5053bb741bffc
SHA3-384 hash: f54cf23b390c7ea1b75672a9befcbc1c6c9073fe82b57587a1406e1d7b954807adf93d3d6c57c30e0c585c22069a4283
SHA1 hash: 9e80136c79abe4072b9629fb57f19c2692dc33a8
MD5 hash: c93940644125559a6aa5f89f532066b8
humanhash: uranus-april-alabama-echo
File name:Confirmarea platii.Pdf.exe
Download: download sample
Signature Formbook
File size:840'704 bytes
First seen:2022-01-29 08:47:14 UTC
Last seen:2022-01-31 06:53:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:pPw5lo9sCYD1WlyD6sxFg+yCjtu2xaXmxHdb5oi:BwHoKCYzD6szg+yCJubmxt5o
Threatray 10'394 similar samples on MalwareBazaar
TLSH T17C055E78CE467A00D176BAF0401BB46402223DA216E7C799CABBFE8175F6A47CD7152F
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Confirmarea platii.Pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-01-29 08:53:35 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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 an obfuscated file name to hide its real file extension (double extension)
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: 562573 Sample: Confirmarea platii.Pdf.exe Startdate: 29/01/2022 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 16 other signatures 2->45 9 Confirmarea platii.Pdf.exe 7 2->9         started        process3 file4 33 C:\Users\user\AppData\...\ClmeTculHDsCcc.exe, PE32 9->33 dropped 35 C:\Users\user\AppData\Local\...\tmp8769.tmp, XML 9->35 dropped 37 C:\Users\...\Confirmarea platii.Pdf.exe.log, ASCII 9->37 dropped 53 Adds a directory exclusion to Windows Defender 9->53 13 RegSvcs.exe 9->13         started        16 powershell.exe 23 9->16         started        18 schtasks.exe 1 9->18         started        signatures5 process6 signatures7 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 2 other signatures 13->61 20 svchost.exe 13->20         started        23 explorer.exe 13->23 injected 25 conhost.exe 16->25         started        27 conhost.exe 18->27         started        process8 signatures9 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51 29 cmd.exe 1 20->29         started        process10 process11 31 conhost.exe 29->31         started       
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2022-01-29 08:14:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 28 (78.57%)
Threat level:
  2/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:d2g7 rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
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
Formbook Payload
Formbook
Unpacked files
SH256 hash:
55387d8366303a794ee0f3d71a04617f0f1ee9c67a55c913f9b6b870efa123b8
MD5 hash:
c7a79737aa6d4fadfac3b251d48773c4
SHA1 hash:
1afbe9593ed76bd2edb0e0dba4512eb3c8d43fb3
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5247926388ed51a1178cb1de85bc5df1443c240ace43d7d9386edf8d7fceec02
MD5 hash:
9a6cb543f17cc6f61c016dbc8a331bc2
SHA1 hash:
62210e9d0f4d5b8101886a336feb3e1ae0eaf824
SH256 hash:
12f195babb3ca7201de7e96abb58028a01663670692882467d8d5b5ea86791df
MD5 hash:
ee96e9935ea67d55e0a18b7c29a6b78c
SHA1 hash:
0de117160207235c33727b1432d332453af3a750
SH256 hash:
b76cdf3f203937fdd5a57710faf9c4d78281f4b893e8caff17a5053bb741bffc
MD5 hash:
c93940644125559a6aa5f89f532066b8
SHA1 hash:
9e80136c79abe4072b9629fb57f19c2692dc33a8
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.

Comments