MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133. 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: 16


Intelligence 16 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133
SHA3-384 hash: c875a6a9f9e94e5278833039aa37a0cb54cb452748c0da5b05d8b81d13522e02f35c481b17b6605d2e86b9224ae67a12
SHA1 hash: 5ee056f976e2bdb798e74e1ed55fc21e03e2d257
MD5 hash: ee3f853e3c9f3ea7952cfa87b9a8d880
humanhash: friend-red-freddie-five
File name:dekont.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:311'640 bytes
First seen:2022-11-15 16:48:55 UTC
Last seen:2022-11-15 19:01:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 6144:MEa0Nsf7sC6geA1a0+1NFzH3DAC0euh7TTA7msfM9ZF:XsfFw0+JzDWeu1TymsfM9P
TLSH T1FB64122571D0447BE1564F308D7AEF26DB795704B2924D8B4B623B73BAA0683AC6F1C2
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
199
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
dekont.exe
Verdict:
Malicious activity
Analysis date:
2022-11-15 16:49:54 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/2880bd1e-e7aa-442d-8262-aaf7627e99c1

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/334420/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.63656664.5507.14524.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6373c301f513af64a6450114/reports/3bac0c02-34a2-406b-b17a-cf51697ab333/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e2511005-8482-404b-9e6c-6e4754fc1172
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1114031
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 746729 Sample: dekont.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 11 dekont.exe 18 2->11         started        process3 file4 33 C:\Users\user\AppData\Local\...\wysfjuevy.exe, PE32 11->33 dropped 14 wysfjuevy.exe 11->14         started        process5 signatures6 61 Multi AV Scanner detection for dropped file 14->61 63 Maps a DLL or memory area into another process 14->63 65 Tries to detect virtualization through RDTSC time measurements 14->65 17 wysfjuevy.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 17->20 injected process9 dnsIp10 35 www.szanody.com 23.19.164.217, 49722, 80 LEASEWEB-USA-SFO-12US United States 20->35 37 www.barmanon5.pro 188.114.97.3, 49724, 80 CLOUDFLARENETUS European Union 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 msiexec.exe 20->24         started        27 autoconv.exe 20->27         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 29 cmd.exe 1 24->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 11:26:59 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 40 (67.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k77a3ltu7dsthrhtrm4ndwtgkhu6gvu6hux3wjbil4hc2m7s4ezq._file
Verdict:
malicious
Label(s):
formbook
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cobaltstrike
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Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b31b rat spyware stealer trojan
Link:
https://tria.ge/reports/221115-vbnvaaeh23/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/683401c3-ee09-4bdc-805d-c9c278a1ced6
Unpacked files
SH256 hash:
a66e2da012533935070c91c6731f62df773ed605e6f162504661137969092be5
MD5 hash:
9eb7584b39ff8ce0a288f60495590c1d
SHA1 hash:
915d0d229334a59e10ab9f65d72974caf73e49ae
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/f57cad13-4476-4bb7-9efe-15fb836ac3bb/
Parent samples :
a7ccf51f2d0bd36b95108bafb88234937b63e8728ae76ceb663692e402fd1b1d
57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133
68561f9a18130d1f0e2a8ca14b9e9344a7f624bb599a766a5b41e16fd728e192
ad6df53019d5d8930fce4ad4a7e0d15a08d9771b3cff97b7c06bf3df364c17a4
6edd37fb895163628297cdcf7898da03027b960434bcae3404cd9fec27de1012
SH256 hash:
37dd4df67b2e9d7707ae25e55ee4726c0fa769cee33e4f778958070c65768ea4
MD5 hash:
3eb31a3ca84fa1470f5f35adecab13a5
SHA1 hash:
deeca44ca80dd7ab53f43a34e080677c00cb53a2
Link:
https://www.unpac.me/results/f57cad13-4476-4bb7-9efe-15fb836ac3bb/
SH256 hash:
57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133
MD5 hash:
ee3f853e3c9f3ea7952cfa87b9a8d880
SHA1 hash:
5ee056f976e2bdb798e74e1ed55fc21e03e2d257
Link:
https://www.unpac.me/results/f57cad13-4476-4bb7-9efe-15fb836ac3bb/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133

File information

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

Malspam

Formbook

Executable exe 57fe0dae74f8e533c4f38b38d1da6651e9e3569e3d2fbb24285f0e2d33f2e133

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/334420/

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