MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c. 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: 19


Intelligence 19 IOCs YARA 7 File information Comments
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SHA256 hash: 1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c
SHA3-384 hash: 93dc4c7d4ebacd5b0277aae0f3f58449efa3a007cecba0d08f8df227c10bc970ea571da48a21487f2ba8d5dbdf3214c3
SHA1 hash: 31aee1e8489ef5b6033f24050ff309941f8f38b0
MD5 hash: a44404aac23672009dc1d835f223d35b
humanhash: early-floor-single-fanta
File name:a44404aac23672009dc1d835f223d35b.exe
Download: download sample
Signature Formbook
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File size:300'437 bytes
First seen:2023-02-14 18:29:40 UTC
Last seen:2023-02-14 20:33:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:0Ya6qfeaNVq78yPmAR6PAqqQ1hPP23xulTtZ3X3fCA:0YMmaS78yP3g4qxYeZ3XvCA
TLSH T1E154E030C365F467F9DB6133357ADEA22AB4AD72C453AA2B0F807A0F5577490A639313
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 b2b3b3b2a6bcb8b2 (1 x RedLineStealer, 1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
a44404aac23672009dc1d835f223d35b.exe
Verdict:
Malicious activity
Analysis date:
2023-02-14 18:40:05 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/3f153733-096e-4896-bad3-0fd1d2ceb1dd

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/365963/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.24348.12335.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Searching for synchronization primitives
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/69783/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63ebd32f19bdad83463742cf/reports/125ce715-3c4c-48ba-9259-f11ba5aa3941/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c
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/b419ba22-774b-42b6-b758-9f8659cc8ca1
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1174726
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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: 807528 Sample: 0vStv1FTrM.exe Startdate: 14/02/2023 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 4 other signatures 2->53 11 0vStv1FTrM.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\yoznhk.exe, PE32 11->31 dropped 14 yoznhk.exe 11->14         started        process5 signatures6 63 Multi AV Scanner detection for dropped file 14->63 65 Detected unpacking (changes PE section rights) 14->65 67 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->67 69 3 other signatures 14->69 17 yoznhk.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 2 6 17->20 injected process9 dnsIp10 33 www.n7m.tokyo 35.75.241.14, 49724, 80 AMAZON-02US United States 20->33 35 www.y94x.info 20->35 37 www.huibi01.vip 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 svchost.exe 20->24         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 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-02-14 14:53:28 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 25 (72.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dkbll4wg2oexk2kuje457lrqiv6qlesmrai7acoqzukuamm6vega._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:nes8 rat spyware stealer trojan
Link:
https://tria.ge/reports/230214-w5gthafc48/
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
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
efe596c5110ab6eb3462f9e6a4b2f20ae0862a13131fbeca3af10583e253d4c2
MD5 hash:
6a4318bea5a6cbc9faa65f588c79f87b
SHA1 hash:
3e0d54b41f3c5fcc8e0b2f95d4608857247aaa66
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/3428e12a-5feb-496f-b38c-0549ec804d8d/
Parent samples :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 hash:
91975a8affb95985c82de51e6f71acb803833d2e9ddf1099145f9a2a04300d50
MD5 hash:
33197092d5e40869139dafa9e86397eb
SHA1 hash:
1c94e4036d5ab42cc9e405c31bccc2af3e316fed
Link:
https://www.unpac.me/results/3428e12a-5feb-496f-b38c-0549ec804d8d/
SH256 hash:
1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c
MD5 hash:
a44404aac23672009dc1d835f223d35b
SHA1 hash:
31aee1e8489ef5b6033f24050ff309941f8f38b0
Link:
https://www.unpac.me/results/3428e12a-5feb-496f-b38c-0549ec804d8d/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1a82b5f2c6d3/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/1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c

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:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
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.

Web download

Formbook

Executable exe 1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2539654/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/365963/

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