MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99362f4e3e31be7018b14e4ba3ca7fd22c7a8c3953cd64ef42d9db6e22f2f361. 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 2 File information Comments

SHA256 hash: 99362f4e3e31be7018b14e4ba3ca7fd22c7a8c3953cd64ef42d9db6e22f2f361
SHA3-384 hash: 72fbc967d973d62f4aaaf2fcfbcfb656a98abadfce69a38411031fa20bd2c9efe7abf64a9cdd6efcb7f1fc53f71e73b3
SHA1 hash: 63d3dde12d3f03f8e8290b370aae9315a32841b8
MD5 hash: e764ca70a2021ce78a32bb67fbcf9a81
humanhash: avocado-item-winner-juliet
File name:DHL AWB_#factura de recibo de 79654210,pdf.exe
Download: download sample
Signature Formbook
File size:1'043'968 bytes
First seen:2022-09-15 06:23:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:+3JT5V7uikFgFA0LnekBDZQfqLJDINWXbT09r0EG30wvYCp1jG4ET2A1c4Gbz:WT5lubgFAGL5+fMFINWv0h+vY8E3c40
Threatray 14'343 similar samples on MalwareBazaar
TLSH T1EB25D15812B2CD07C9AAA531DCD1E2701B785DC4866FC70F09D83DB7F63B399A8923A5
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 003171630385d500 (6 x Formbook, 5 x RemcosRAT, 1 x DarkCloud)
Reporter abuse_ch
Tags:DHL exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 703241 Sample: DHL AWB_#factura de recibo ... Startdate: 15/09/2022 Architecture: WINDOWS Score: 100 41 www.forgalab.xyz 2->41 43 redirect.natrocdn.com 2->43 45 natroredirect.natrocdn.com 2->45 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 Sigma detected: Scheduled temp file as task from temp location 2->53 55 11 other signatures 2->55 9 DHL AWB_#factura de recibo de 79654210,pdf.exe 7 2->9         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\bgNfawTDSGsORK.exe, PE32 9->33 dropped 35 C:\...\bgNfawTDSGsORK.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\user\AppData\Local\...\tmp5F91.tmp, XML 9->37 dropped 39 DHL AWB_#factura d...9654210,pdf.exe.log, ASCII 9->39 dropped 59 Adds a directory exclusion to Windows Defender 9->59 13 DHL AWB_#factura de recibo de 79654210,pdf.exe 9->13         started        16 powershell.exe 19 9->16         started        18 schtasks.exe 1 9->18         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 13->69 71 Maps a DLL or memory area into another process 13->71 73 Sample uses process hollowing technique 13->73 75 Queues an APC in another process (thread injection) 13->75 20 explorer.exe 13->20 injected 24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        process9 dnsIp10 47 www.derpallet.info 66.29.142.237, 49750, 80 ADVANTAGECOMUS United States 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 28 wscript.exe 12 20->28         started        31 autochk.exe 20->31         started        signatures11 process12 signatures13 61 Tries to steal Mail credentials (via file / registry access) 28->61 63 Deletes itself after installation 28->63 65 Modifies the context of a thread in another process (thread injection) 28->65 67 Maps a DLL or memory area into another process 28->67
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-09-15 05:50:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
9 of 40 (22.50%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:q40s rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
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
Checks computer location settings
Loads dropped DLL
Formbook
Unpacked files
SH256 hash:
e4ab8392bbae038f7354a4307753ba802fb383134ce195594fc94776b6f27c43
MD5 hash:
4dde67d9892ca520e658c900d59f3856
SHA1 hash:
6a05bcef01cb755c4948bc16286a5c237ff5d704
SH256 hash:
1cc980a85ee40a1b43db288d8651fabbea29fc875fe1a91be0556b34a17e2842
MD5 hash:
19765591d4ab143bf310d7eb25b0333f
SHA1 hash:
e1a7284ed0e4dfcb92543e051e363e8ed3f7c9e5
SH256 hash:
0c2ffdc7d275eac582f42b36381691383c1dec54b2a8904433c57825f936e47a
MD5 hash:
e0becc458736f22ba35ba370e1fcc57e
SHA1 hash:
3b17e5264fcb22e87081ec660055ae96d26f45da
SH256 hash:
44c50087cbd9a86677ff5b898c1ad52abf5f25297179a174edcc8b81dec967fc
MD5 hash:
d012ba9057bf67c7f29871326f2af919
SHA1 hash:
1d5b8b512b37f0e1900496b578117082929654c7
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
99362f4e3e31be7018b14e4ba3ca7fd22c7a8c3953cd64ef42d9db6e22f2f361
MD5 hash:
e764ca70a2021ce78a32bb67fbcf9a81
SHA1 hash:
63d3dde12d3f03f8e8290b370aae9315a32841b8
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 99362f4e3e31be7018b14e4ba3ca7fd22c7a8c3953cd64ef42d9db6e22f2f361

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments