MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2. 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 4 File information Comments
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SHA256 hash: e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2
SHA3-384 hash: 4c1fdf698d4b11bb4f6a8f07d5b4feabbe061ddd637a324599b8f09b08a9e4cab41672a2ecb8104356ab89273698a4a0
SHA1 hash: cb2893fdccdc824b0f5d89f4f6f31dc3f744d67b
MD5 hash: a130d2050e55c6c938ac6ed89a91b2db
humanhash: pip-lithium-fanta-zulu
File name:bbb.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:736'768 bytes
First seen:2022-02-16 15:56:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:2yDENcIEdvH22qla5w/yXbxYyNQSYdlHFCEA:J8cNH0MW/IbxYj7CEA
Threatray 13'767 similar samples on MalwareBazaar
TLSH T1B0F49D4AE7550680EC99463AA5F927112365BAB18CCF830B71D97A3DC7EBBFD2E0414C
File icon (PE):PE icon
dhash icon 69d4b26868b2cc71 (23 x Formbook, 6 x SnakeKeylogger, 2 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/241956/
Detection(s):
SecuriteInfo.com.EXE.Obfus-4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/620d1ed6875593a3ccd7cf5f/reports/0b03a198-b1fe-479c-918e-8127cd7233c8/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.
Gathering data
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/940955
Signature
.NET source code contains potential unpacker
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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Uses ping.exe to check the status of other devices and networks
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 573433 Sample: bbb.exe Startdate: 16/02/2022 Architecture: WINDOWS Score: 100 85 yahoo.com 2->85 111 Found malware configuration 2->111 113 Malicious sample detected (through community Yara rule) 2->113 115 Antivirus detection for URL or domain 2->115 117 7 other signatures 2->117 11 bbb.exe 1 4 2->11         started        signatures3 process4 file5 79 C:\Users\user\AppData\Local\huss.exe, PE32 11->79 dropped 81 C:\Users\user\...\huss.exe:Zone.Identifier, ASCII 11->81 dropped 83 C:\Users\user\AppData\Local\...\bbb.exe.log, ASCII 11->83 dropped 125 Tries to detect virtualization through RDTSC time measurements 11->125 15 bbb.exe 11->15         started        18 cmd.exe 1 11->18         started        20 cmd.exe 1 11->20         started        22 8 other processes 11->22 signatures6 process7 signatures8 127 Modifies the context of a thread in another process (thread injection) 15->127 129 Maps a DLL or memory area into another process 15->129 131 Queues an APC in another process (thread injection) 15->131 24 explorer.exe 15->24 injected 133 Uses ping.exe to check the status of other devices and networks 18->133 26 PING.EXE 1 18->26         started        29 conhost.exe 18->29         started        31 PING.EXE 1 20->31         started        33 conhost.exe 20->33         started        35 PING.EXE 1 22->35         started        37 PING.EXE 1 22->37         started        39 PING.EXE 1 22->39         started        41 13 other processes 22->41 process9 dnsIp10 43 huss.exe 1 24->43         started        46 huss.exe 1 24->46         started        87 yahoo.com 98.137.11.163 YAHOO-GQ1US United States 26->87 89 74.6.231.21 YAHOO-NE1US United States 31->89 91 74.6.143.26 YAHOO-3US United States 35->91 93 98.137.11.164 YAHOO-GQ1US United States 39->93 95 74.6.231.20 YAHOO-NE1US United States 41->95 97 192.168.2.1 unknown unknown 41->97 process11 signatures12 119 Antivirus detection for dropped file 43->119 121 Multi AV Scanner detection for dropped file 43->121 123 Machine Learning detection for dropped file 43->123 48 cmd.exe 1 43->48         started        50 cmd.exe 43->50         started        52 cmd.exe 43->52         started        54 cmd.exe 43->54         started        56 cmd.exe 46->56         started        58 cmd.exe 46->58         started        process13 process14 60 PING.EXE 1 48->60         started        63 conhost.exe 48->63         started        65 PING.EXE 1 50->65         started        67 conhost.exe 50->67         started        73 2 other processes 52->73 75 2 other processes 54->75 69 PING.EXE 56->69         started        71 conhost.exe 56->71         started        77 2 other processes 58->77 dnsIp15 99 yahoo.com 60->99 101 yahoo.com 65->101 103 yahoo.com 69->103 105 yahoo.com 73->105 107 yahoo.com 75->107 109 yahoo.com 77->109
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-16 15:55:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5ab4luus4fueqrh7blec45wksdfmuhse47gtkb6oj3sfa645t6za._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1bc7ae65ce4613e96d19dcf560ec6bb47395431ed05480c42895002570c9cb3a
Formbook
2fd3db9eb65d7a120e24e7245a73e4e88d4b2a7998d82986e8b2e2f20af1d932
Formbook
503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b
Formbook
79215526b0229696bf3961e09918bca444cb43b079ca70834c54db52c49c51ac
Formbook
9774f8078d941b17f5018bf3759bca9e62cfe4714ed55d5bd33737fcbba25ce3
Formbook
a6e23730cd711af23e7900cbabb871b668d37a74dda0c97d63f3303167861cf5
Formbook
aa067750ad705a1b6176cb6f3f91466c9d5c2ee4457c2466b995bef70c04b240
Formbook
+ 13'757 additional samples on MalwareBazaar
Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:8gce loader persistence rat
Link:
https://tria.ge/reports/220216-tdxpjabhd3/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
a021643f10d700562485ac43733dab04e3b80866adf7fb05ba4c8dd86873db48
MD5 hash:
5a3fab1d9e60b5e324749bce6cb50335
SHA1 hash:
6bf74364a37967c58d422c5cf03e81677b4a0500
Link:
https://www.unpac.me/results/f0ab01d6-3d94-4f0f-8bc2-5155ba1c4027/
SH256 hash:
93b1aae60dbcad70fa1ee88cf9511e73649d2c098f9c00ed30e3066b27245dce
MD5 hash:
58e327cb3e3cdfad4e8ef0379b8acde0
SHA1 hash:
5a2de2f4eec36e804b1da829deb2ef59a07c0ab2
Link:
https://www.unpac.me/results/f0ab01d6-3d94-4f0f-8bc2-5155ba1c4027/
SH256 hash:
e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2
MD5 hash:
a130d2050e55c6c938ac6ed89a91b2db
SHA1 hash:
cb2893fdccdc824b0f5d89f4f6f31dc3f744d67b
Link:
https://www.unpac.me/results/f0ab01d6-3d94-4f0f-8bc2-5155ba1c4027/
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/e803c5d292e1684844ff0ac82e76ca90caca1e44e7cd3507ce4ee4507b9d9fb2

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
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
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Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

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/241956/
  
URLhaus
https://urlhaus.abuse.ch/url/2045438/

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