MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be. 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 1 File information Comments
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SHA256 hash: 5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be
SHA3-384 hash: 46610947a05231acca7e36f0d94e379980e3736a701895ba1ede52f5b1c0bf63f4e1d6c7b72aa00067d44639cc68a1ce
SHA1 hash: 46466739e1491b637ae37f054a88b7cd10173d52
MD5 hash: 171ce975df317d4f0a57847450e033a0
humanhash: carolina-tennessee-west-low
File name:e-dekont.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:241'825 bytes
First seen:2023-05-13 06:31:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya63QQuzFyh3wU+a+tZb6PL/bv0OZh1K0RNC6lT:/YVQQuxyj+JtF6vNnDx
Threatray 2'888 similar samples on MalwareBazaar
TLSH T1EC34122012F8ED63F5A00A300E7A962D6FF5DA5160E1E747A7205F89B173292CA2D757
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 :
239
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
e-dekont.exe
Verdict:
Malicious activity
Analysis date:
2023-05-13 06:36:55 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/79a162ce-8ef2-4a6b-a9ab-5117819b04ed

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/388850/
Detection(s):
SecuriteInfo.com.Trojan.Generic.33699950.28993.21760.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Setting browser functions hooks
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/83821/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/645f2ea8446f9ce94a6596c4/reports/fbc1e94e-650e-40ed-bece-9f0edb7f4e86/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be
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/ec1d675b-c88d-4d93-8c3d-f1cb102445df
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232039
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
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 865023 Sample: e-dekont.exe Startdate: 13/05/2023 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 7 other signatures 2->42 10 e-dekont.exe 19 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\jswzkjgv.dll, PE32 10->28 dropped 52 Detected unpacking (changes PE section rights) 10->52 54 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->54 56 Maps a DLL or memory area into another process 10->56 58 Tries to detect virtualization through RDTSC time measurements 10->58 14 e-dekont.exe 10->14         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 3 6 14->17 injected process8 dnsIp9 30 www.benwuyts.com 38.60.118.253, 49704, 80 COGENT-174US United States 17->30 32 www.cleanlineconstruction.co.uk 17->32 34 www.centered-psychotherapy.com 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 systray.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-05-12 13:39:47 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lwb2ipmhwhr3hucgiybo7saxhekxpmmlch4xemgvcikpm5rhws7a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
59162d6533d5d56ceedd3f8a24e85e75cd198c72db5719188a4a582752d7fbe4
Formbook
6e8de74475e365bdd0f573a03266f447a13f30a76cc2c71d14c1fc5607e1ae5d
Formbook
9d1779f9a627d5d1cd19c2a1f74f71eddb92cc11d8757d4ea3a2e7b315f4186d
Formbook
b5db87325a5b386200f2379ce42a371b27efe823cf726d707ba79248bbecb2f2
Formbook
c40dc41488efa6a5e4cb29e69880ad288f6d5a0af69522818239f5410ab807d7
Formbook
d2e78fc6d48b4936070f2c8dccfd55a3619e8116964887f723963405e78f2320
Formbook
d81949804bc29604ac2de2ac9f2d360deae54a39d28edfbc9b323868b619b059
Formbook
dae07c0c93ddde9c93128b15ba4fd8ec83a07538d3b03eda7374cfcb5441c84f
Formbook
f2de7e1866310a43bf34f50a907b7ec8ff5c7b9ae4421c304e26aed008f30850
Formbook
+ 2'878 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a04y rat spyware stealer trojan
Link:
https://tria.ge/reports/230513-g92xxahh5x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
ea0409e2f37b820b4eaec8db2a7019cf71badafa4c6e25e8d9742883396b9f03
MD5 hash:
19b97a69cc83019bd6604487b0cc4472
SHA1 hash:
e0bc571b26d7990c3817325587c1863a85fb0a73
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/639e61c9-6c94-42c5-ba91-aa66b8c06c18/
Parent samples :
b5db87325a5b386200f2379ce42a371b27efe823cf726d707ba79248bbecb2f2
5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be
SH256 hash:
5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be
MD5 hash:
171ce975df317d4f0a57847450e033a0
SHA1 hash:
46466739e1491b637ae37f054a88b7cd10173d52
Link:
https://www.unpac.me/results/639e61c9-6c94-42c5-ba91-aa66b8c06c18/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5d83a43d87b1/report/overview.html
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

Executable exe 5d83a43d87b1e3b3d0464602efc817391577b18b11f97230d51214f67627b4be

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/388850/

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