MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b249a16ea50d01651cf9c1f01c97deea48293f1b28735450d62bd0413b93653. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
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SHA256 hash: 8b249a16ea50d01651cf9c1f01c97deea48293f1b28735450d62bd0413b93653
SHA3-384 hash: 98d45afc71c84e2765e01bc8de4fc489ba86819d66049a53c80ec02313f4fec367ca4762cb2372d59c637d52fa502d58
SHA1 hash: 1ffcdd188cb66666cdac14bb8d8b48902bd666e6
MD5 hash: 1ad9efcddab819d24cca2f9323395f9e
humanhash: hotel-fish-alabama-bluebird
File name:1ad9efcddab819d24cca2f9323395f9e
Download: download sample
Signature Formbook
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File size:337'408 bytes
First seen:2021-11-13 10:55:00 UTC
Last seen:2021-11-13 13:52:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:5G2GXtmd4j44cJ5egkiQ7YHoXdQCD5xRevdZ1hJCnYBphh:5GHXb8vZmD5xRejEEL
Threatray 11'344 similar samples on MalwareBazaar
TLSH T13F74126533F85B63D8BECFF46870629183F1612B7072E7682D85A6EF1875BC0CA41A17
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/205443/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.38333.18188.2365.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/618f99893edf00a722d1d702/reports/3af54d63-4719-4c14-be3c-189e4a52549f/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/0fa6d287-6f18-4ec9-bff4-b11926cd5b81
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/888535
Signature
.NET source code contains potential unpacker
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
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 dnsIp2 2 Behavior Graph ID: 521006 Sample: rgQlelmw0H Startdate: 13/11/2021 Architecture: WINDOWS Score: 100 31 www.polarjob.com 2->31 33 HDRedirect-LB7-5a03e1c2772e1c9c.elb.us-east-1.amazonaws.com 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 6 other signatures 2->45 11 rgQlelmw0H.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\rgQlelmw0H.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 rgQlelmw0H.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.merxeduct.com 64.190.62.111, 49828, 80 NBS11696US United States 18->35 37 www.tentfull.com 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 systray.exe 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8b249a16ea50d01651cf9c1f01c97deea48293f1b28735450d62bd0413b93653/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-11-11 02:45:36 UTC
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
0366673a2a85919a9419b85f9f552a2c9713edda8319dc9046f271ee024816ad
Formbook
0c33fe39195569a868cf9f87d3aff16e72f5a54c4e52a852b8f986d121fa47e8
Formbook
0cf11de8a0ce67a46203ae419f2aa7bb988ae3088dc4f33158dccc55b97e4a7d
Formbook
37f6df44b9dd38408fe5682c6d660eceb04a2915b3420576afce05bf3076bc01
Formbook
3cb62c9b4ec92c70df9795f481ccb5b50fd4f260441c23edcaf97c23396bf502
Formbook
3f8d5d1f035d14a94abe8191fb35dd70961af3590ec61a0e90afdb322cd5e18b
Formbook
dfe96798a6065c99050d1cb964200874b40e3916f90e3caed35df9ace3dc3198
Formbook
+ 11'334 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:kzk9 rat spyware stealer trojan
Link:
https://tria.ge/reports/211113-mz476sehg2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yourmajordomo.com/kzk9/
Unpacked files
SH256 hash:
9d083e6711fa05d81808595ccb256ebec25439983acc2a4d9bf991a31767fc9e
MD5 hash:
d4aad17cf070ec0b2ebc71e1c86b5d48
SHA1 hash:
cf86991474de99b5998fd75f68b56dcb4e5879f5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/1a20d0cb-392d-46bd-8203-e13f5c49b6d4/
Parent samples :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 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/1a20d0cb-392d-46bd-8203-e13f5c49b6d4/
SH256 hash:
c832b7a186bc0e6ab359f1dedaa9bb4704301aa24fca0cf1e3d789db744a1075
MD5 hash:
3d68317c20dba684276548759227fece
SHA1 hash:
6fbd5b7e24642b0bff49ebe1d9fe2d5f56b09cca
Link:
https://www.unpac.me/results/1a20d0cb-392d-46bd-8203-e13f5c49b6d4/
SH256 hash:
8b249a16ea50d01651cf9c1f01c97deea48293f1b28735450d62bd0413b93653
MD5 hash:
1ad9efcddab819d24cca2f9323395f9e
SHA1 hash:
1ffcdd188cb66666cdac14bb8d8b48902bd666e6
Link:
https://www.unpac.me/results/1a20d0cb-392d-46bd-8203-e13f5c49b6d4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8b249a16ea50/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

Formbook

Executable exe 8b249a16ea50d01651cf9c1f01c97deea48293f1b28735450d62bd0413b93653

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/205443/
  
URLhaus
https://urlhaus.abuse.ch/url/1782681/

Comments


Avatar
zbet commented on 2021-11-13 10:55:02 UTC

url : hxxp://103.147.184.178/9100d9/dllhost.exe