MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74. 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: f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74
SHA3-384 hash: fd1870695eb045a11b1fc65c566a7c3837eb1c49b60cc3252b512f0ff4b871ba70f5e36a394e48e5bfa56643b8fca733
SHA1 hash: 2714e0ec97d81921312f0db6470dc40f55d16b96
MD5 hash: a3b74acf9723e53d6caea736faae9708
humanhash: quiet-xray-berlin-idaho
File name:INv02938727.exe
Download: download sample
Signature Formbook
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File size:719'360 bytes
First seen:2021-05-10 07:15:14 UTC
Last seen:2021-05-10 08:05:28 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:NMf87gJVpnabp1HiqSpLyDrnsSoo7dbi8kg04kuA9Mu:2UghabSLnwdbi8kg1Ip
Threatray 5'130 similar samples on MalwareBazaar
TLSH 33E4D0352398AF56E47EA7395530001023F2B407D772EA4DBEF654DE5AB2F808676B23
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/153806/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.624-1.UNOFFICIAL
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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
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/779434
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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 (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: 411836 Sample: INv02938727.exe Startdate: 12/05/2021 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 7 other signatures 2->50 9 INv02938727.exe 3 2->9         started        process3 file4 28 C:\Users\user\AppData\...\INv02938727.exe.log, ASCII 9->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 9->52 13 INv02938727.exe 9->13         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 13->54 56 Maps a DLL or memory area into another process 13->56 58 Sample uses process hollowing technique 13->58 60 Queues an APC in another process (thread injection) 13->60 16 control.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Tries to detect virtualization through RDTSC time measurements 16->40 22 cmd.exe 1 16->22         started        30 www.funtimespheres.com 107.165.40.251, 49732, 80 EGIHOSTINGUS United States 19->30 32 sequenceanalytica.com 184.168.131.241, 49733, 80 AS-26496-GO-DADDY-COM-LLCUS United States 19->32 34 3 other IPs or domains 19->34 42 System process connects to network (likely due to code injection or exploit) 19->42 24 autochk.exe 19->24         started        signatures10 process11 process12 26 conhost.exe 22->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74/
Threat name:
Win32.Backdoor.Blakken
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Status:
Malicious
First seen:
2021-05-10 00:24:50 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7dupms5rp75s72qyw5trmavhnkfvondapr5hvybv3tuo5wbydj2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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2a728511ab345b4207ea5959439df12205796548388cc170b427110f9cc247dd
Formbook
3f2cdc7783014a37d7ad61ee00c226d5221d4932f4113eb3590a9c9d0447b461
Formbook
5313ca84959a3d88973ad5b85acc66e268c3e8874d5d6f21fcd4a4c1a7628496
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78b11874a66b80ec78962b27c352a643d1a11c7f5cf9273f0db06df3f4f7e76c
Formbook
7c6393b4e86ea5cec49c0f814b17e4bb85aa447c19896037252a94ff6416ce1b
Formbook
851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
Formbook
9de1892b227f07e8896b3dfa4d1f8b450bf2af962b1ec34f3075acc7a4187259
Formbook
b35de004189f271fe754dd614e5fbbc299425f5aca9ebf1f935bf26696964853
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
c7b835a38f13c18350ba953a8f57f8c90a237804c377ba32d6fd212daa08e98c
Formbook
+ 5'120 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/210510-p4e3cxh6we/
Behaviour
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.hometowncashbuyersgroup.com/kkt/
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
Link:
https://www.unpac.me/results/f2758820-b888-4247-9a14-90d8e933068b/
SH256 hash:
f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74
MD5 hash:
a3b74acf9723e53d6caea736faae9708
SHA1 hash:
2714e0ec97d81921312f0db6470dc40f55d16b96
Link:
https://www.unpac.me/results/f2758820-b888-4247-9a14-90d8e933068b/
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/f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74

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.

Malspam

Formbook

Executable exe f8e8f64bb17ffb2fea18b7671602a76a8b5734607c7a7ae035dce8eed8381a74

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/153806/

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