MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9d55b9da595432539830f1dc35cd8be32668d9eed89ea051fedbfd82e6ab1ed. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: f9d55b9da595432539830f1dc35cd8be32668d9eed89ea051fedbfd82e6ab1ed
SHA3-384 hash: 17ec8f626d59b55112c44e0f9c6291f55ef1b00eb59990d6e41440d63658b45be4f0b68e233d2f93e50b8bbf68c33682
SHA1 hash: cedf611ef39140922eb504d884ee74dfe126ad06
MD5 hash: 6593450ea57d8a11affe9e5360d12587
humanhash: romeo-fruit-social-mississippi
File name:Halkbank_Ekstre_20230201.pdf.exe.exe.exe.exe
Download: download sample
Signature Formbook
File size:275'968 bytes
First seen:2023-02-01 15:10:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:RpvR3Kf+c+iURa29P24nrFgpQREqLr4KroUNGf:Bw+0329+GFCrGk2od
TLSH T1FF4413297BD994C6CD4E2930884342481B716DFE78CBE10CB5DDBA2C1C727EA5B2DA47
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook geo Halkbank TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Halkbank_Ekstre_20230201.pdf.exe.exe.exe.exe
Verdict:
Malicious activity
Analysis date:
2023-02-01 15:19:22 UTC
Tags:
n/a

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

Behaviour
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Modifying a system executable file
Creating a window
Forced shutdown of a system process
Unauthorized injection to a system process
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 796417 Sample: Halkbank_Ekstre_20230201.pd... Startdate: 01/02/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 5 other signatures 2->53 10 Halkbank_Ekstre_20230201.pdf.exe.exe.exe.exe 1 2->10         started        process3 file4 43 Halkbank_Ekstre_20...exe.exe.exe.exe.log, CSV 10->43 dropped 59 Writes to foreign memory regions 10->59 61 Allocates memory in foreign processes 10->61 63 Injects a PE file into a foreign processes 10->63 14 vbc.exe 10->14         started        17 vbc.exe 10->17         started        signatures5 process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 19 explorer.exe 3 6 14->19 injected process8 process9 21 wscript.exe 19->21         started        24 WerFault.exe 10 19->24         started        signatures10 55 Modifies the context of a thread in another process (thread injection) 21->55 57 Maps a DLL or memory area into another process 21->57 26 explorer.exe 21->26         started        29 explorer.exe 120 21->29         started        31 explorer.exe 21->31         started        33 2 other processes 21->33 process11 dnsIp12 45 192.168.2.1 unknown unknown 26->45 35 WerFault.exe 26->35         started        37 WerFault.exe 10 29->37         started        39 WerFault.exe 31->39         started        41 WerFault.exe 33->41         started        process13
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2023-02-01 12:55:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 26 (73.08%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Modifies Installed Components in the registry
Unpacked files
SH256 hash:
8668552c92dbf1be2b18838656b6c49e404c13f7645a22346fa25be6db71eeb9
MD5 hash:
f17ab417e84bc7293cd39bfae4fab8b3
SHA1 hash:
acd5a697a623295d4cd5d7c6584ef4ac0ec46197
Detections:
win_formbook_w0 win_formbook_auto win_formbook_g0
SH256 hash:
33f204b4d1013957fa0d94f855ea77b965439b40298873a69d4c37041079682f
MD5 hash:
aa7654dcefbd85629c240178efa57bab
SHA1 hash:
1a93b91597c4e3748536b0d997011c4edeae932a
SH256 hash:
f9d55b9da595432539830f1dc35cd8be32668d9eed89ea051fedbfd82e6ab1ed
MD5 hash:
6593450ea57d8a11affe9e5360d12587
SHA1 hash:
cedf611ef39140922eb504d884ee74dfe126ad06
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:pdb_YARAify
Author:@wowabiy314
Description:PDB
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