MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892
SHA3-384 hash: 1836dc2eece6f26160cd4478c5b6c181426db1e1ea272174ae26ed5e5d62ee37f29d15510d3f223a22d9ac7f7f89df41
SHA1 hash: f38330c5afa9f51051c9482e0e36f0c6815634ef
MD5 hash: 75f7af69413756a902090b336ab6da23
humanhash: east-delta-mockingbird-jupiter
File name:E-dekont.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:712'192 bytes
First seen:2024-10-22 12:04:58 UTC
Last seen:2024-10-22 12:37:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:hHuE6NgGxLuyN8jhrBol/OEoYhwAXpt7t2K6ophVj0/uXWfbkwyOPw:UNQjhrBCOERhw+p5Uoph5nWfNLw
TLSH T1F1E4E00023AADA01E5B61BB85870E3F407B92E99B835D31B8FD9BDEB7D327455900793
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
437
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
E-dekont.pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-10-22 12:07:57 UTC
Tags:
netreactor formbook xloader
Link:
https://app.any.run/tasks/4bad2569-aae3-4d4b-a6f2-29fd5b6c0261

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.29998.24011.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=671794f59e67c24682031843
Tags:
Powershell Underscore
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 cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed packed packer_detected
Link:
https://www.filescan.io/uploads/671794f2b21b1aa5a9196a0e/reports/02861124-830a-48d2-8cc2-7fc125638273/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/457f8e5b-dd23-4a70-9b58-acb264a73732
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1539260
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
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)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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)
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1539260 Sample: E-dekont.pdf.exe Startdate: 22/10/2024 Architecture: WINDOWS Score: 100 35 www.xecutive-kutoax.xyz 2->35 37 www.veu-where.xyz 2->37 39 9 other IPs or domains 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 49 14 other signatures 2->49 11 E-dekont.pdf.exe 4 2->11         started        signatures3 47 Performs DNS queries to domains with low reputation 37->47 process4 file5 33 C:\Users\user\...-dekont.pdf.exe.log, ASCII 11->33 dropped 59 Adds a directory exclusion to Windows Defender 11->59 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 65 Switches to a custom stack to bypass stack traces 11->65 15 E-dekont.pdf.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 75 2 other signatures 15->75 20 explorer.exe 53 1 15->20 injected 73 Loading BitLocker PowerShell Module 18->73 22 WmiPrvSE.exe 18->22         started        24 conhost.exe 18->24         started        process9 process10 26 cmstp.exe 20->26         started        signatures11 51 Modifies the context of a thread in another process (thread injection) 26->51 53 Maps a DLL or memory area into another process 26->53 55 Tries to detect virtualization through RDTSC time measurements 26->55 57 Switches to a custom stack to bypass stack traces 26->57 29 cmd.exe 1 26->29         started        process12 process13 31 conhost.exe 29->31         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-10-22 11:20:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ro2ikmqhbm5inod43gfwtanm4bg2tgmvqneqrosgoqekvj7thcja._file
Verdict:
malicious
Label(s):
unknown_loader_037
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formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:m17o discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/241022-n86ysswdkq/
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/742455df-afc1-4fd2-a087-75122060f51e
Unpacked files
SH256 hash:
1e6b371a6c3007649f5ba0b58c7ab07ca313e920f713c864aabb181e11e01e51
MD5 hash:
014149120200b139d1df57b176abc6ea
SHA1 hash:
e22cfaa1f4ff8f1b346024c14ebd0a22237a808c
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
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/59db7801-ec14-4b1b-8d15-a0ff945a383b/
Parent samples :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 hash:
4cd6c11429610324296e0e2051ab13a099af39b609f77e4b3a361a9495ca7b34
MD5 hash:
349e761a1327259cdce128e845505b0b
SHA1 hash:
99bd9945a209ada20920592b848bf571100d7e12
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/59db7801-ec14-4b1b-8d15-a0ff945a383b/
Parent samples :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 hash:
d0f70c3d1a29fa0b470ca141f8b46a2024002ea00063c9d8d60b257ec8b19c77
MD5 hash:
6b7e3ca3f365f64e26e1938dd81b3c6c
SHA1 hash:
2255859210046c6a2f1965d4ce717b884e04a205
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/59db7801-ec14-4b1b-8d15-a0ff945a383b/
SH256 hash:
8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892
MD5 hash:
75f7af69413756a902090b336ab6da23
SHA1 hash:
f38330c5afa9f51051c9482e0e36f0c6815634ef
Link:
https://www.unpac.me/results/59db7801-ec14-4b1b-8d15-a0ff945a383b/
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/8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892

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
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 8bb48532070b3a86b87cd98b6981ace04da99995834908ba467408aaa7f33892

(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

Comments