MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb
SHA3-384 hash: a490068a807ae9f41b891dc8994d9bc0b1fe09f07663b9adb06b378d04fd04438c3407f4dd1c1b3d2e5825bb7c00e0a5
SHA1 hash: af2a32d408423b80f5bc659f708ff373947f633c
MD5 hash: e5030819a8f2a25db1d44af66e00f397
humanhash: juliet-lake-october-wyoming
File name:dekont.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:705'536 bytes
First seen:2024-11-14 12:34:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:1bJbQWSL/h6HWSpws2t0dAWT9ymEtboOCJVMH:dJbQxLQHWSph2t0OWTgmENoOCJV
TLSH T151E4E00076E99B62EABA5BF40072C27007767D8EA421D30E9DE5ACDF3C15F899E41763
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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 :
1
# of downloads :
428
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dekont.pdf.exe
Verdict:
No threats detected
Analysis date:
2024-11-14 17:03:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/23e2caa8-9f48-43cc-b46f-2f5f8d9d9bfd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6735eeb26bc7caf979b2abcf
Tags:
underscore virus gates shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5fc13c5e-009c-46d8-ba5e-d0099c79edd7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1555786
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted 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
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Reads the DNS cache
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Double Extension File Execution
Switches to a custom stack to bypass stack traces
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)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1555786 Sample: dekont.pdf.exe Startdate: 14/11/2024 Architecture: WINDOWS Score: 100 34 www.ut-nlvv.xyz 2->34 36 www.lay-drift-palace.xyz 2->36 38 10 other IPs or domains 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 48 12 other signatures 2->48 9 dekont.pdf.exe 4 2->9         started        signatures3 46 Performs DNS queries to domains with low reputation 36->46 process4 file5 32 C:\Users\user\AppData\...\dekont.pdf.exe.log, ASCII 9->32 dropped 52 Adds a directory exclusion to Windows Defender 9->52 54 Tries to detect virtualization through RDTSC time measurements 9->54 56 Injects a PE file into a foreign processes 9->56 58 Switches to a custom stack to bypass stack traces 9->58 13 dekont.pdf.exe 9->13         started        16 powershell.exe 23 9->16         started        18 cmd.exe 1 9->18         started        signatures6 process7 signatures8 60 Modifies the context of a thread in another process (thread injection) 13->60 62 Maps a DLL or memory area into another process 13->62 64 Queues an APC in another process (thread injection) 13->64 66 Found direct / indirect Syscall (likely to bypass EDR) 13->66 20 explorer.exe 49 1 13->20 injected 68 Loading BitLocker PowerShell Module 16->68 23 WmiPrvSE.exe 16->23         started        25 conhost.exe 16->25         started        27 conhost.exe 18->27         started        process9 signatures10 50 Uses ipconfig to lookup or modify the Windows network settings 20->50 29 ipconfig.exe 20->29         started        process11 signatures12 70 Modifies the context of a thread in another process (thread injection) 29->70 72 Reads the DNS cache 29->72 74 Maps a DLL or memory area into another process 29->74 76 2 other signatures 29->76
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb/
Threat name:
ByteCode-MSIL.Ransomware.RedLine
Create hunting rule
Status:
Malicious
First seen:
2024-11-14 11:05:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
35
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=23fzj2aduvynwsmhmvnocafz3tfezii5ixd2bonlabhusscvwh5q._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m17o discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241114-psby6azbjj/
Behaviour
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
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8324314f-b4f0-4c2e-8194-6add91cbed55
Unpacked files
SH256 hash:
1e6b371a6c3007649f5ba0b58c7ab07ca313e920f713c864aabb181e11e01e51
MD5 hash:
014149120200b139d1df57b176abc6ea
SHA1 hash:
e22cfaa1f4ff8f1b346024c14ebd0a22237a808c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/0fdfd7f6-a1ad-42ff-9f38-a9845e2c0f44/
Parent samples :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 hash:
5a4252b8da8d848d79dee91c41ec2b64bfcf500b904e1eed90fd28dc7990e8d8
MD5 hash:
70e5af48f8367546fe33c37d49e0918e
SHA1 hash:
b57b9d6092dd8beb26c545a288d0cf8f9c77ff8e
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/0fdfd7f6-a1ad-42ff-9f38-a9845e2c0f44/
SH256 hash:
093250c615269860e2aabb8043763fefab2fdd13a7dc57f67d2b062a989f2189
MD5 hash:
e53f93e34f822b88d16ef0bccf01bb50
SHA1 hash:
0dedf769f70aa4e4c9dfe9bfc5187b483c1acdd1
Link:
https://www.unpac.me/results/0fdfd7f6-a1ad-42ff-9f38-a9845e2c0f44/
SH256 hash:
d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb
MD5 hash:
e5030819a8f2a25db1d44af66e00f397
SHA1 hash:
af2a32d408423b80f5bc659f708ff373947f633c
Link:
https://www.unpac.me/results/0fdfd7f6-a1ad-42ff-9f38-a9845e2c0f44/
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/d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb

(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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