MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
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SHA256 hash: ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
SHA3-384 hash: 3d880efbe4f5a22ee02df6d03d32b9b93e5197d97749ec1e45fce76b882ae7a7b69a60b8364fe59419ca755d4a5aa1d2
SHA1 hash: d0259bd7461968db513ef56545b118791be180a6
MD5 hash: 5c74ddab550cb3ff1335612128643fc3
humanhash: king-vegan-two-aspen
File name:callyzx.exe
Download: download sample
Signature Formbook
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File size:631'296 bytes
First seen:2021-11-18 16:50:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'456 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:BtGr5m31gW7gNkaTkF13f99z/esfh2L78iFAHpeBI4W+p:BMr5m3KWfkM3H/V278ieJqI
Threatray 11'341 similar samples on MalwareBazaar
TLSH T14FD4E0E03AB8C817E7708576D6B0D3BA8AB0B15D1DE1C6023CEE2ADF76597647C58312
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
callyzx.exe
Verdict:
Malicious activity
Analysis date:
2021-11-18 17:01:56 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/ce522f41-8c27-4750-b154-5ef6893127aa

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.Artemis94E5EB9F1122.4572.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive fareit gorgon obfuscated packed
Link:
https://www.filescan.io/uploads/6196847743e8f62b6699045f/reports/2b727ba5-f2a9-45fd-bb52-c3fc70cbe1dd/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6e755acd-6240-4207-8cc6-44bf701211f4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/892125
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 524598 Sample: callyzx.exe Startdate: 18/11/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 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 callyzx.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\callyzx.exe.log, ASCII 10->30 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 14 callyzx.exe 10->14         started        17 callyzx.exe 10->17         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 19 explorer.exe 14->19 injected process8 dnsIp9 32 realsupercharger.com 52.2.101.114, 49815, 80 AMAZON-AESUS United States 19->32 34 www.shitalo.ink 19->34 36 3 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 chkdsk.exe 19->23         started        signatures10 process11 signatures12 48 Self deletion via cmd delete 23->48 50 Modifies the context of a thread in another process (thread injection) 23->50 52 Maps a DLL or memory area into another process 23->52 54 Tries to detect virtualization through RDTSC time measurements 23->54 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2021-11-18 14:02:25 UTC
AV detection:
15 of 27 (55.56%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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agenttesla
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Similar samples:
2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f
Formbook
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
Formbook
5f75a4cd779707129db4deb97e834d4fe3e7d41d576d9a2078b855c790736c74
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
Formbook
7c0ab1d837684e8d37e75578f4821e25d7729cb9d3739f397cabbb9c95f2ddae
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
+ 11'331 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cy88 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211118-vctf6aefhl/
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
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.jamesobrien.school/cy88/
Unpacked files
SH256 hash:
b9da25075c3e27a81cdf9207fbd574f974b87ec847bfcdef59d8bd8fade072e0
MD5 hash:
98574b67657a1644171b3038cfd9561b
SHA1 hash:
6fcd3a68800350b0152f995b8e79c15b09eb44d5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/65e9d967-61f2-44c7-ad93-25532292c3f3/
Parent samples :
a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
SH256 hash:
cc5c5860e83b708cd158454165cbeb714767119946049de5aa7677685be75c14
MD5 hash:
83cbea4dec6e5b64a85ee9b6f9ff7598
SHA1 hash:
5c1d12b792c32ba73b7bf2634da5e4d9fbcd7d4e
Link:
https://www.unpac.me/results/65e9d967-61f2-44c7-ad93-25532292c3f3/
SH256 hash:
9f388449df4657a355cae16d07b54c167e32cb1b658cfd3a8ae611a5ecc65f1f
MD5 hash:
d58f726125a65d9786085c72777af27a
SHA1 hash:
1cb780292e75b35c238e421de7be9a8544dba5d8
Link:
https://www.unpac.me/results/65e9d967-61f2-44c7-ad93-25532292c3f3/
SH256 hash:
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
MD5 hash:
5c74ddab550cb3ff1335612128643fc3
SHA1 hash:
d0259bd7461968db513ef56545b118791be180a6
Link:
https://www.unpac.me/results/65e9d967-61f2-44c7-ad93-25532292c3f3/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ea074d89ce66/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55

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:pe_imphash
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Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/1763345/
Cape
Cape
https://www.capesandbox.com/analysis/207315/

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