MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267. 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: 17


Intelligence 17 IOCs YARA 19 File information Comments
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SHA256 hash: 433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267
SHA3-384 hash: 6af7f1b1cb2db64996438994aaf7698c0187161221dc335a69308abe24e632fde30880d809bd5f9114cca50f1572cd6d
SHA1 hash: 29d303ce679f7a80684aaa986af86e2e0ef0029e
MD5 hash: a5361dea0d691cafd2551e5c65a182ce
humanhash: two-west-triple-three
File name:E-dekont.pdf.exe
Download: download sample
Signature Formbook
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File size:293'786 bytes
First seen:2023-09-22 14:58:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:vYa6OOjkaA2ORCGzTbcadnalQk23IbP0HV7gOqFBqoBieyyjcj46H:vYIGFA2nGFnaz23IbcHV71kXU5R4S
Threatray 1'965 similar samples on MalwareBazaar
TLSH T12A541209676094BAE9A341706E7D879BFFEED81654608B1B0F204B187DB2752C81FB62
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
E-dekont.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-09-22 15:04:23 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/328dacd8-6ee1-4ab0-b991-2bcff774f8a2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/450633/
Detection(s):
Sanesecurity.Malware.28947.BadP.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/650dabbb2d5fc006cad797e2/reports/2160bf0a-8edd-485c-9f46-834c83baefc9/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267
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/4f2bda60-cf27-48fc-bfbd-39b160851f7f
Result
Threat name:
FormBook, NSISDropper
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1312975
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1312975 Sample: E-dekont.pdf.exe Startdate: 22/09/2023 Architecture: WINDOWS Score: 100 34 www.7300-banking.pro 2->34 36 www.reynoldsquality.com 2->36 38 10 other IPs or domains 2->38 54 Snort IDS alert for network traffic 2->54 56 Multi AV Scanner detection for domain / URL 2->56 58 Found malware configuration 2->58 62 10 other signatures 2->62 12 E-dekont.pdf.exe 18 2->12         started        signatures3 60 Performs DNS queries to domains with low reputation 34->60 process4 file5 32 C:\Users\user\AppData\Local\...\rfbikqx.exe, Unknown 12->32 dropped 15 rfbikqx.exe 12->15         started        process6 signatures7 70 Detected unpacking (changes PE section rights) 15->70 72 Machine Learning detection for dropped file 15->72 74 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->74 76 2 other signatures 15->76 18 rfbikqx.exe 15->18         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 21 explorer.exe 36 4 18->21 injected process10 dnsIp11 40 www.mkamiart.com 217.160.0.161, 49727, 80 ONEANDONE-ASBrauerstrasse48DE Germany 21->40 42 www.mmacpdrm.click 43.154.67.170, 49743, 80 LILLY-ASUS Japan 21->42 44 4 other IPs or domains 21->44 64 System process connects to network (likely due to code injection or exploit) 21->64 25 msiexec.exe 21->25         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267/
Threat name:
Win32.Trojan.Znyonm
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Status:
Malicious
First seen:
2023-09-22 09:50:29 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=im53lqkzrbhxmbldgdrwcoh24qfvz7vbjunshhbwmx4uo5kcmjtq._file
Verdict:
malicious
Label(s):
formbook
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Similar samples:
545922d6a8c2e95e41d555cac8d3fcd44fa562e92ee1de2d11e3bd0860e5a21a
Formbook
6ab510e025f1d00b20b2272a997b5ebd76249532898cd3188af857cc21df125c
Formbook
7b88e2abbaa9a126435447c3d3c1ee10bba7d9355bad947297409bd6709b59ac
Formbook
837fc8d2a3e348e96ea2db94abbe3319b380496b7329cde30519b26f51c1de88
Formbook
a3071d3d586d802ca6e86e641ae978872ab99fe208dc287a12d80fa2562b91a8
Formbook
b663d64967ea2c767419bb45189b60b0ff088b8060598a7b914bd284a91c4c92
Formbook
+ 1'955 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:mh21 rat spyware stealer trojan
Link:
https://tria.ge/reports/230922-scqzxsaf94/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
2e415ad24d75db2997887ae0cbfb839d6b8c966a01df50b6ec2b1258c59e3496
MD5 hash:
ab4262e037c083c08f1ab175042803a3
SHA1 hash:
603f004e831e1ec764eb8ae82927540e19ac9ed2
Link:
https://www.unpac.me/results/5690b156-d903-49e8-96f3-0c5b5f4602b3/
SH256 hash:
433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267
MD5 hash:
a5361dea0d691cafd2551e5c65a182ce
SHA1 hash:
29d303ce679f7a80684aaa986af86e2e0ef0029e
Link:
https://www.unpac.me/results/5690b156-d903-49e8-96f3-0c5b5f4602b3/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/433bb5c15988/report/overview.html
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/433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267

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:azov_Dropped
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Author:Potatech
Description:Azov Detection
Rule name:crime_win32_ransom_avaddon_1
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Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
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Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
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Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
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Author:Elastic Security
Rule name:win_formbook_auto
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Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
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Author:@malgamy12

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 433bb5c159884f76056330e36138fae40b5cfea14d1b239c3665f94775426267

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/450633/

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