MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
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SHA256 hash: 462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
SHA3-384 hash: a78de68c9e0412e921c48260f15f857bdd059282c7f145ee015ff8ffdd9e0be23a589a749441f8c0f231fa8da261ff50
SHA1 hash: 37f1784b83b3951be610bcc0a88d729aba113f7e
MD5 hash: ec3a89fb3f145a68a25284c99c0e714e
humanhash: beer-lake-sad-diet
File name:Dekont.pdf.exe
Download: download sample
Signature Formbook
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File size:649'216 bytes
First seen:2024-10-08 17:21:13 UTC
Last seen:2025-01-10 14:07:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:OnCiPGlFpYu3pOT+thfn3tumqHZGRosZQve/5hMB2Oy4IZklPrbH6ec4kqNu4FbX:++pl3Dth/3t9qHbsus228I2nAqNusbNB
TLSH T16CD4F12C1659D513D86A97B85A71F27817791FEAB502D3069FDA6CFFF92BB004C08283
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
385
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Dekont.pdf.exe
Verdict:
No threats detected
Analysis date:
2024-10-08 17:22:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e1becd13-26fc-4169-a9ad-f1fa947ffd37

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.27236.1621.UNOFFICIAL
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Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670634d9f936b5621b0ba1a3
Tags:
Powershell Spawn Msil
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/67056a3c4d903f1f7eef1b17/reports/4d2ddd9c-2229-4bc1-80f6-cccfd8221309/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/10bd9716-2a3f-48b5-8d5c-83de2e074e17
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1529228
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Loading BitLocker PowerShell Module
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
Performs DNS queries to domains with low reputation
Query firmware table information (likely to detect VMs)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1529228 Sample: Dekont.pdf.exe Startdate: 08/10/2024 Architecture: WINDOWS Score: 100 44 www.ifebork.xyz 2->44 46 www.blezuy.xyz 2->46 48 10 other IPs or domains 2->48 70 Suricata IDS alerts for network traffic 2->70 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 78 12 other signatures 2->78 11 Dekont.pdf.exe 4 2->11         started        15 explorer.exe 2->15         started        signatures3 76 Performs DNS queries to domains with low reputation 46->76 process4 dnsIp5 42 C:\Users\user\AppData\...\Dekont.pdf.exe.log, ASCII 11->42 dropped 80 Adds a directory exclusion to Windows Defender 11->80 82 Tries to detect virtualization through RDTSC time measurements 11->82 84 Switches to a custom stack to bypass stack traces 11->84 18 Dekont.pdf.exe 11->18         started        21 powershell.exe 23 11->21         started        23 Dekont.pdf.exe 11->23         started        25 Dekont.pdf.exe 11->25         started        50 www.blezuy.xyz 203.161.41.254, 50022, 80 VNPT-AS-VNVNPTCorpVN Malaysia 15->50 86 System process connects to network (likely due to code injection or exploit) 15->86 88 Query firmware table information (likely to detect VMs) 15->88 file6 signatures7 process8 signatures9 60 Modifies the context of a thread in another process (thread injection) 18->60 62 Maps a DLL or memory area into another process 18->62 64 Sample uses process hollowing technique 18->64 68 2 other signatures 18->68 27 explorer.exe 32 1 18->27 injected 66 Loading BitLocker PowerShell Module 21->66 29 WmiPrvSE.exe 21->29         started        31 conhost.exe 21->31         started        process10 process11 33 WWAHost.exe 27->33         started        36 WerFault.exe 21 27->36         started        signatures12 52 Modifies the context of a thread in another process (thread injection) 33->52 54 Maps a DLL or memory area into another process 33->54 56 Tries to detect virtualization through RDTSC time measurements 33->56 58 Switches to a custom stack to bypass stack traces 33->58 38 cmd.exe 1 33->38         started        process13 process14 40 conhost.exe 38->40         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231/
Threat name:
Win32.Backdoor.FormBook
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Status:
Malicious
First seen:
2024-10-08 17:22:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iyrtrtcbn4l3wsatkjkohbgutod53y7qyqhgyunhbll2xxwpyiyq._file
Verdict:
malicious
Label(s):
formbook
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unknown_loader_037
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Similar samples:
error
Formbook
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:m10i discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241008-vxkdzswgrk/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Link:
https://app.threat.zone/submission/581963ac-4d65-4bbe-8ba6-755b68c041c8
Unpacked files
SH256 hash:
1114a7227f132fb8868b8d02718a4245a8c1afb2721eed0598fdc3b2050a6e83
MD5 hash:
5a4c8829135a1e62c4ccb8ff654d6955
SHA1 hash:
8cc91bee70c208c9ed0b2b2f9ad56030e9228456
Detections:
Formbook
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Windows_Trojan_Formbook
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Link:
https://www.unpac.me/results/28a6946b-e6da-4fe4-aa4f-fa2b0fa04c70/
Parent samples :
47155987c94e0b921887ed3aa2278fb857781238c518fbea52224728b88b0436
1d5c6a9f196dc3d9f2e483744d7b872f01a96b8320ce3ffdc66b66542cb7a899
0e95933b378d0fbe6e132bab051ab9a3ab4fa3332828e72a0133749c1150b79f
462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
bcdb8d2083ae1e7cdf5894bfcf411cdc5e39059971c545e7485544d55c391418
SH256 hash:
eb64210add1e403416b6bfa3b2d897107dbeba55166344f328a4404ed0978e85
MD5 hash:
df3cdaeee6a3a9467f677cfb8c312cb9
SHA1 hash:
54b5fd83f7c8efb31ae56c027c923a43b2c12dd1
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/28a6946b-e6da-4fe4-aa4f-fa2b0fa04c70/
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
Link:
https://www.unpac.me/results/28a6946b-e6da-4fe4-aa4f-fa2b0fa04c70/
SH256 hash:
462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231
MD5 hash:
ec3a89fb3f145a68a25284c99c0e714e
SHA1 hash:
37f1784b83b3951be610bcc0a88d729aba113f7e
Link:
https://www.unpac.me/results/28a6946b-e6da-4fe4-aa4f-fa2b0fa04c70/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231

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:NET
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Author:malware-lu
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 462338cc416f17bb48135254e384d49b87dde3f0c40e6c51a70ad7abdecfc231

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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