MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c651e973d7cc7d54b38d45b9c464889778e4262d3dfeb692cd87f0a2fd0d7079. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c651e973d7cc7d54b38d45b9c464889778e4262d3dfeb692cd87f0a2fd0d7079
SHA3-384 hash: 37e92f0d3993bfb14ee6d9d120d172926cc131130bd2d5c095a7312c8cb2f76c19fcf54d069c2e461054df6ac5bbd4b6
SHA1 hash: 7630c96cd8a46711df32fc7657adbac4c725d17b
MD5 hash: 3a8210c1af732cc3beb2cd429467a974
humanhash: enemy-louisiana-kentucky-triple
File name:regasm.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'042'944 bytes
First seen:2021-04-16 10:43:27 UTC
Last seen:2021-04-16 11:54:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:+6lPBGbDgRFNR7/ZSUMtv9UcjWrmPDITIeZ4O6kOUcsruNM1o2T/PzWplRxIbYpZ:+2gvg3NRkUMZ9pWaPDOIeZMnZk
Threatray 4'709 similar samples on MalwareBazaar
TLSH 3F25199D765072EFC867C872CEA85C64EBA0747B830BD603A45716EDAA0D59BCF140F2
Reporter ankit_anubhav
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
regasm.exe
Verdict:
Malicious activity
Analysis date:
2021-04-16 10:45:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8c174e53-2691-44e0-89cf-39e9c3e2a576

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/136022/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46106652.10691.21885.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/680427
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
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 dnsIp2 2 Behavior Graph ID: 389173 Sample: regasm.exe Startdate: 16/04/2021 Architecture: WINDOWS Score: 100 35 www.uraiy.com 2->35 37 www.orang-id1002.club 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 6 other signatures 2->51 11 regasm.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\regasm.exe.log, ASCII 11->33 dropped 61 Detected unpacking (changes PE section rights) 11->61 63 Detected unpacking (overwrites its own PE header) 11->63 65 Tries to detect virtualization through RDTSC time measurements 11->65 15 regasm.exe 11->15         started        18 regasm.exe 11->18         started        20 regasm.exe 11->20         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 22 explorer.exe 15->22 injected process9 dnsIp10 39 inmobiliariakdna.com 162.241.2.107, 49741, 80 OIS1US United States 22->39 41 t4nrnrz.sitelockcdn.net 107.154.167.62, 49743, 80 INCAPSULAUS United States 22->41 43 16 other IPs or domains 22->43 53 System process connects to network (likely due to code injection or exploit) 22->53 26 cmd.exe 22->26         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c651e973d7cc7d54b38d45b9c464889778e4262d3dfeb692cd87f0a2fd0d7079/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-16 10:02:31 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzi6s46xzr6vjm4niw44izeis54oijrnhx7lnewnq7ykf7inob4q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
nanocorerat
Create hunting rule
Similar samples:
3c5cf190ba17e8138feadf46a81dbdafff69ecd8b9122aaf4967fbd9aa79c1f6
Formbook
5101663e1850401504dd1e56231725be9a3001ed01e99fa88d348b9511c52f4d
Formbook
63b94415ccf2fabff3be3a811ded9a5306d68ac197adc07d7c2be3b313e8a665
Formbook
8412907b0441a1695b45e1de5e7b446d28ab00f6da416bdb2575f51eb60e9647
Formbook
98b9dc9f5b4f3497ac183ceb6697849616df8f3988aea363a41948eabd5ccaac
Formbook
9eb08a4fd35569b3034dbe07ba5334ec8c5bfe262d589bb123e838dbcf688e08
Formbook
ae80c3c9ddf62e5b9b70e173c55b946db7a41aafee9bd645621157e05e9f95f4
Formbook
cd292d4cdb5ff8f2de087a09de2a152722d910f1df7ce7b65e6480be9ae77fdf
Formbook
dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
Formbook
fd578808fbbd44d564598d6c46f512b9511531402f720afc67bcbf6d4d42f59a
Formbook
+ 4'699 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210416-j3ydd1zvgx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.xiangnanxiang.com/nqs9/
Unpacked files
SH256 hash:
5e0f3da625a479a5e7e807b5f09c889d95474139410b312ba3a39bcb05976729
MD5 hash:
3d20c2ea9ac04e1707f853bb1780bc18
SHA1 hash:
805e90b023eb92d44bbe11daefce6edbe872cb74
Link:
https://www.unpac.me/results/eeaeb7c8-b9e3-4f5a-b4d5-d4358f73a0e1/
SH256 hash:
c651e973d7cc7d54b38d45b9c464889778e4262d3dfeb692cd87f0a2fd0d7079
MD5 hash:
3a8210c1af732cc3beb2cd429467a974
SHA1 hash:
7630c96cd8a46711df32fc7657adbac4c725d17b
Link:
https://www.unpac.me/results/eeaeb7c8-b9e3-4f5a-b4d5-d4358f73a0e1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c651e973d7cc7d54b38d45b9c464889778e4262d3dfeb692cd87f0a2fd0d7079

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

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/136022/

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