MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: 540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1
SHA3-384 hash: 078aa9f9c740b286919207104e13dbb4eed62d92ea3a7c42c56aeb6116cafcf25a8c0839f9dd0a62254ad5ac08c3b1ee
SHA1 hash: 8186d625b6f406d71a27aa8ef51f52902c5c26f0
MD5 hash: 7afd3b350ea6451b47be2058c07365de
humanhash: september-mike-triple-arizona
File name:Confirm!!!.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'183'744 bytes
First seen:2021-05-09 09:17:12 UTC
Last seen:2021-05-09 10:02:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:xx5/NZWnoN4NNHFWOmtw3fCyfzRTw4PepqO5zs4M:x1pOmtwPlrR724O5d
Threatray 5'045 similar samples on MalwareBazaar
TLSH 99458C1653148653E03A2734C56ADA3903B12D3AF2B2D7DCB9E43E9BBEB27C19523117
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/153491/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.624-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/720343
Signature
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)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 409102 Sample: Confirm!!!.exe Startdate: 09/05/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Yara detected AntiVM3 2->43 45 4 other signatures 2->45 10 Confirm!!!.exe 3 2->10         started        process3 signatures4 49 Tries to detect virtualization through RDTSC time measurements 10->49 51 Injects a PE file into a foreign processes 10->51 13 Confirm!!!.exe 10->13         started        16 Confirm!!!.exe 10->16         started        18 Confirm!!!.exe 10->18         started        20 Confirm!!!.exe 10->20         started        process5 signatures6 59 Modifies the context of a thread in another process (thread injection) 13->59 61 Maps a DLL or memory area into another process 13->61 63 Sample uses process hollowing technique 13->63 65 Queues an APC in another process (thread injection) 13->65 22 explorer.exe 13->22 injected process7 dnsIp8 33 www.schatzilandrvresort.com 64.98.145.30, 49714, 80 TUCOWS-3CA Canada 22->33 35 www.englishfordoctors.online 194.58.112.174, 49715, 80 AS-REGRU Russian Federation 22->35 37 2 other IPs or domains 22->37 47 System process connects to network (likely due to code injection or exploit) 22->47 26 chkdsk.exe 22->26         started        signatures9 process10 signatures11 53 Modifies the context of a thread in another process (thread injection) 26->53 55 Maps a DLL or memory area into another process 26->55 57 Tries to detect virtualization through RDTSC time measurements 26->57 29 cmd.exe 1 26->29         started        process12 process13 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-05-09 09:18:10 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kqacdkqf3cmfx5xmu6b5q3g23itspnpnbmnjipfzzx5sessokdyq._file
Verdict:
malicious
Similar samples:
1b8900c6d6fef0ae6e5d73dc10214310f106f786274098e2fb80b219b257c215
Formbook
3aaa7c7c8d2fd8bba13c2a6a51dc70ec8e95cb1af76d474454b19d45ad414f4d
Formbook
53cd0bb46c1d8aa4dc128569b2c2b2b13f0d4a1357e464e5eec019a7f11195d6
Formbook
612d1888d98714893e69c4649a46a990c9c26367834d5be5afc05df15e913572
Formbook
7ffcfe208773bc49ef7a0e832fe117592b8eaf83484ebc9cfe9c64eb354aadec
Formbook
8aabfb2b5aeee025f4a6d963c8761011efb74797e37ee89fd37ae5c23f7f2945
Formbook
9e38c0c3c516583da526016c4c6a671c53333d3d156562717db79eac63587522
Formbook
9fadae8c6a192536c41677546bc32e530d38084906e8be610573538f0955c49d
Formbook
cad578cb66b96125accf74e291decfbfa2026857ec0efcae51a25ba4cc185ddc
Formbook
efa63822d503d39c7cf4ed12eea7c23780a146214aafcf5b74a18b859c5ab5ca
Formbook
+ 5'035 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210509-zfh52278bj/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.deuxus.com/t052/
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/16f35bbb-dc2a-4ed7-b8c3-86c4f522afa7/
SH256 hash:
540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1
MD5 hash:
7afd3b350ea6451b47be2058c07365de
SHA1 hash:
8186d625b6f406d71a27aa8ef51f52902c5c26f0
Link:
https://www.unpac.me/results/16f35bbb-dc2a-4ed7-b8c3-86c4f522afa7/
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/540021aa05d8985bf6eca783d86cdada2727b5ed0b1a943cb9cdfb224a4e50f1

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/153491/

Comments