MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4797f594a893caff5eef78473bfc338044cc3278b726b8e424c89eb36633600e. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
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SHA256 hash: 4797f594a893caff5eef78473bfc338044cc3278b726b8e424c89eb36633600e
SHA3-384 hash: 6b2e98d1479d5e9a7fce412bf5a9aa997dd9e42f1ff32efc3855122e6cc406188341877e726ae4bebeddfa2d8939ec06
SHA1 hash: 0b53e15d5b59b4e907dcf3ebbe850b4385fdfac3
MD5 hash: 3c1c3e24932b075690c96cfd90f7d3e5
humanhash: salami-wyoming-avocado-wyoming
File name:SecuriteInfo.com.W32.AIDetectNet.01.5553.5565
Download: download sample
Signature Formbook
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File size:1'625'088 bytes
First seen:2022-08-15 05:30:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'793 x AgentTesla, 19'692 x Formbook, 12'274 x SnakeKeylogger)
ssdeep 49152:GKqfWWSQkjEdnP3f526n37QizXe84jZC:GK01dPPDOC
TLSH T19D75D011F7E8C71BC19E2734E8F9052427BAE452B23AD78FA8C855ED1C937501C867AB
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon eaae8a9ea69ae8b0 (33 x Formbook, 4 x SnakeKeylogger, 1 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
261
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.5553.5565
Verdict:
Suspicious activity
Analysis date:
2022-08-15 05:32:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f2149590-3565-4d10-90f1-193c2fbbd292

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/298546/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.5553.5565.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Searching for synchronization primitives
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62f9d9f8810e2831b74aafee/reports/5018c34d-a6c8-4ed3-96ba-b18475ce94c8/overview
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/807b490d-0ef0-43e0-be17-638e2ae66e56
Result
Threat name:
AsyncRAT, FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1051304
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
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)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 683814 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 15/08/2022 Architecture: WINDOWS Score: 100 32 www.saghiparhamdds.com 2->32 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->40 42 7 other signatures 2->42 11 SecuriteInfo.com.W32.AIDetectNet.01.5553.exe 3 2->11         started        signatures3 process4 signatures5 50 Writes to foreign memory regions 11->50 52 Injects a PE file into a foreign processes 11->52 14 InstallUtil.exe 11->14         started        process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 2 other signatures 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.ready4rishi.club 217.160.0.123, 49777, 80 ONEANDONE-ASBrauerstrasse48DE Germany 17->30 34 System process connects to network (likely due to code injection or exploit) 17->34 21 help.exe 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4797f594a893caff5eef78473bfc338044cc3278b726b8e424c89eb36633600e/
Threat name:
Win32.Trojan.Leonem
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Status:
Malicious
First seen:
2022-08-15 05:31:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i6l7lffispfp6xxppbdtx7btqbcmymtyw4tlrzbezcplgzrtmaha._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:nt19 rat spyware stealer trojan
Link:
https://tria.ge/reports/220815-f7pzwsheg3/
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
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
4797f594a893caff5eef78473bfc338044cc3278b726b8e424c89eb36633600e
MD5 hash:
3c1c3e24932b075690c96cfd90f7d3e5
SHA1 hash:
0b53e15d5b59b4e907dcf3ebbe850b4385fdfac3
Link:
https://www.unpac.me/results/6435913f-1d5b-44ca-8876-f04bc79786af/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4797f594a893/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/4797f594a893caff5eef78473bfc338044cc3278b726b8e424c89eb36633600e

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/298546/

Comments