MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1. 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 4 File information Comments
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SHA256 hash: c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1
SHA3-384 hash: 48bddeeb093ee4938587e7acc58462df4f6cbb30d53dc417770f42cc7986f877b8ff715e18d6c151fbbbc3163e2062d1
SHA1 hash: 039477a4c34bc104a4ff797288ef3d8a01900ff6
MD5 hash: ef8d477861854541592ffe50ce56d3da
humanhash: virginia-montana-vermont-alabama
File name:9008654324456.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'020'416 bytes
First seen:2023-11-16 12:41:58 UTC
Last seen:2023-11-16 13:09:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'633 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:qRP8sE9ARf1zb2iNkuPF337m+lLptOdn4RIdqBQ4U62yEUfrpHrAQU/RVXV0jXvE:U1l5Lm+hptOGRm62nUDpHra925VUS92
TLSH T1F1250141F459DE77CA7C88FF598504E103BA5C3A96C5D3E89CC1FAEA22E1BD1C61284B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 31f0cc9a86e4fc0e (2 x AgentTesla, 1 x Formbook)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
311
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
9008654324456.exe
Verdict:
Malicious activity
Analysis date:
2023-11-16 12:45:29 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/e0943c1e-ffca-4dc2-b1cc-91a9e42ac1a7

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/458830/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching cmd.exe command interpreter
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65560e1d18918145a815ece1/reports/b562b96b-ba08-49d7-aa2f-31d5a21536f9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1
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/af8b2303-c3da-49e5-bbb1-0398ae34190e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1343564
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 domain / URL
Multi AV Scanner detection for dropped file
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: Scheduled temp file as task from temp location
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
Uses netstat to query active network connections and open ports
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1343564 Sample: 9008654324456.exe Startdate: 16/11/2023 Architecture: WINDOWS Score: 100 53 www.thelakahealth.com 2->53 55 www.stellarskyline.com 2->55 57 13 other IPs or domains 2->57 73 Snort IDS alert for network traffic 2->73 75 Multi AV Scanner detection for domain / URL 2->75 77 Found malware configuration 2->77 79 13 other signatures 2->79 11 9008654324456.exe 7 2->11         started        15 JezkAm.exe 5 2->15         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming\JezkAm.exe, PE32 11->49 dropped 51 C:\Users\user\AppData\Local\...\tmp31ED.tmp, XML 11->51 dropped 87 Uses schtasks.exe or at.exe to add and modify task schedules 11->87 89 Adds a directory exclusion to Windows Defender 11->89 91 Tries to detect virtualization through RDTSC time measurements 11->91 93 Injects a PE file into a foreign processes 11->93 17 9008654324456.exe 11->17         started        20 powershell.exe 23 11->20         started        22 schtasks.exe 1 11->22         started        95 Antivirus detection for dropped file 15->95 97 Multi AV Scanner detection for dropped file 15->97 99 Machine Learning detection for dropped file 15->99 24 JezkAm.exe 15->24         started        26 schtasks.exe 1 15->26         started        28 JezkAm.exe 15->28         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 17->65 67 Maps a DLL or memory area into another process 17->67 69 Sample uses process hollowing technique 17->69 71 Queues an APC in another process (thread injection) 17->71 30 explorer.exe 8 1 17->30 injected 34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 26->38         started        process9 dnsIp10 59 stellarskyline.com 62.72.50.88, 49746, 80 PRTL-DE Germany 30->59 61 www.boonts.cfd 150.95.255.38, 49745, 80 INTERQGMOInternetIncJP Japan 30->61 63 5 other IPs or domains 30->63 101 System process connects to network (likely due to code injection or exploit) 30->101 103 Uses netstat to query active network connections and open ports 30->103 40 cmd.exe 30->40         started        43 NETSTAT.EXE 30->43         started        signatures11 process12 signatures13 81 Modifies the context of a thread in another process (thread injection) 40->81 83 Maps a DLL or memory area into another process 40->83 85 Tries to detect virtualization through RDTSC time measurements 40->85 45 cmd.exe 40->45         started        process14 process15 47 conhost.exe 45->47         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-16 07:11:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=y6457phwl3ozrl7yf2r6d77gwd4d5su4hses3zfmq2a7ygrlw3iq._file
Verdict:
malicious
Label(s):
formbook
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agenttesla
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:ao65 rat spyware stealer trojan
Link:
https://tria.ge/reports/231116-pxb5qabh76/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
5cb452fafe86dfe43ca415c27e33baac616300df1f5a660b71777fa414264231
MD5 hash:
48835d707136e1336f5a0f9ab88c3528
SHA1 hash:
99539e84ba63e25860fd99f36d7c1dac2312cdcd
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
SH256 hash:
82ed6b10536db1344d0fbef527bc11f3fcc37fb462e3f1e12a9114ded2ca8e28
MD5 hash:
352d0984534e2f12e9e27a0a13dc2f50
SHA1 hash:
d3e81bc9b117588ce1ea10227c93e1034b117975
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
SH256 hash:
76482f1dc9b0639dd6b2d762e09101875e207e8c60e146a43ca182a4c13d6afa
MD5 hash:
9561bc00330bfa400784c1b3b2075d0b
SHA1 hash:
b98f0014f428085dea5ea44108d64d9119e3d698
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
SH256 hash:
1ddcc420dac5a5d4c99a7ca771a6d0ed7bcec390910234e239751e9ad02e1408
MD5 hash:
1a3824d860e3c3cdd5c1df5081dae1f1
SHA1 hash:
6d0ad41662f39d32fe262abb2a7df93ca231d44a
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
SH256 hash:
c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1
MD5 hash:
ef8d477861854541592ffe50ce56d3da
SHA1 hash:
039477a4c34bc104a4ff797288ef3d8a01900ff6
Link:
https://www.unpac.me/results/51c9ad08-1a61-4c28-85a5-c29cd9fef7c8/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c7b9dfbcf65e/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/c7b9dfbcf65edd98aff82ea3e1ffe6b0f83eca9c3c892de4ac8681fc1a2bb6d1

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:NETexecutableMicrosoft
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.

Cape
Cape
https://www.capesandbox.com/analysis/458830/

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