MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43. 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: 042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43
SHA3-384 hash: 9fe53aa5c6ac7c2f35c011c4eee3afea620265607eb134ecc7e387351fc77e55ad96577648cf768ea49fe9ca4a8ce8c4
SHA1 hash: 0ab780d8234ab8e7514b186dafb9a6f3f8f88fcc
MD5 hash: 42a9512c2462575e98db4a30d1388f94
humanhash: social-carbon-oregon-eleven
File name:shebronzy3.1.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:349'775 bytes
First seen:2023-06-21 13:30:10 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:PYa6HcT82JytxhktZvLEVDRmQx0z+/10pG8kEmqXWhIrhcKzYz/CT4+KDYQGsM51:PYl88stFwk+0y10pG8kERWeruFeT4JU1
Threatray 2'891 similar samples on MalwareBazaar
TLSH T1127412217F54C883CAE3C837687A13657BA7AA331679870723505F5C7823A35E52E3E5
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 96e8e0d4d4ccb2a4 (9 x Formbook, 6 x AveMariaRAT, 4 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
278
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
shebronzy3.1.exe
Verdict:
Malicious activity
Analysis date:
2023-06-21 13:30:55 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/34c298f7-c81e-4ff0-ad40-df9f35c8fa3b

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/401421/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.22782.23810.9803.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending a custom TCP request
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:
lolbin masquerade overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6492fb9699f0c0cb09333b90/reports/c0ddecbc-d5b5-441a-b7ff-53116a4413a2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43
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/c5b838d6-9ea0-4a48-b958-8057bf2d7d33
Result
Threat name:
FormBook, NSISDropper, PrivateLoader
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1259036
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 dropped file
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 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
Uses netstat to query active network connections and open ports
Yara detected FormBook
Yara detected NSISDropper
Yara detected PrivateLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 892056 Sample: shebronzy3.1.exe Startdate: 21/06/2023 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 shebronzy3.1.exe 19 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\rljyxdoi.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\Local\...\nsrD1F8.tmp, data 10->30 dropped 56 Detected unpacking (changes PE section rights) 10->56 58 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->58 60 Maps a DLL or memory area into another process 10->60 62 Tries to detect virtualization through RDTSC time measurements 10->62 14 shebronzy3.1.exe 10->14         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 2 1 14->17 injected process8 dnsIp9 32 shops.myshopify.com 23.227.38.74, 49710, 80 CLOUDFLARENETUS Canada 17->32 34 www.zakhtive.com 17->34 36 3 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 48 Uses netstat to query active network connections and open ports 17->48 21 NETSTAT.EXE 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43/
Threat name:
Win32.Trojan.Nemesis
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Status:
Malicious
First seen:
2023-06-21 13:29:43 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aqvht7fes3x3vgcytryrlrrayelk6lxr4eyivgvzd4qqe2s4zvbq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0368b2ffa6991460a59b03edcd2ef71c423a27d4902b2222248bc0935776614d
Formbook
142f8b22d894f1fee4c501acbc425edec276004d5d30ab7572cdfab85e89ad12
Formbook
3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98
Formbook
4f3beb04e0d4713530c2f9c369c300186ab01d902f060a904e5648490e8ba708
Formbook
673d8cda7f0d526c493d98e45e1f517bd9b8ddf422054f481e650e95bff3a922
Formbook
99ec8b8e93e7a91dab1a16b9353333fa340d52569de4b88f5703bbc5a666211c
Formbook
ce902a74a974d8abadef885c3aa91a41ad495d0d22a187b0bb4c87645d3ae0a8
Formbook
f31be72f929b86c056e683db26b8ec78a40f3d1156821fca58901189a8ee965e
Formbook
f7bb2d35300a95c164089832c13410023d2293390130109ae3693fd0d05a3df8
Formbook
f9454d0787965826c1f6e031eb78495f153453fca4efea4ed993dceb61f2e3d8
Formbook
+ 2'881 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy18 rat spyware stealer trojan
Link:
https://tria.ge/reports/230621-qsc2wshf99/
Behaviour
Enumerates system info in registry
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:
b28ed55362bcce6d47bd71b7e2489ac45961238477370bd595d2349c528c6759
MD5 hash:
c904b61a2adbc2aa107e016ed0f3ab83
SHA1 hash:
2cb63cc1fcfa763739e4962fd81caa2ff81e984b
Link:
https://www.unpac.me/results/de350e43-b997-480f-9599-535b544746eb/
SH256 hash:
042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43
MD5 hash:
42a9512c2462575e98db4a30d1388f94
SHA1 hash:
0ab780d8234ab8e7514b186dafb9a6f3f8f88fcc
Link:
https://www.unpac.me/results/de350e43-b997-480f-9599-535b544746eb/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/042a79fca496/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/042a79fca496efba98589c7115c620c116af2ef1e1308a9ab91f21026a5ccd43

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
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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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/401421/
  
URLhaus
https://urlhaus.abuse.ch/url/2668439/

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