MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e. 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: 15


Intelligence 15 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e
SHA3-384 hash: 8496166bca6cc276f9821cb2dc058a4d472efac0f19f320a792bc2db944e46315820619b632655fb396994607ff1ba55
SHA1 hash: ec85d3804df7f90e77edc0861f85523a467953db
MD5 hash: cc081bbdec3133f1703e60cbd39b82c2
humanhash: iowa-cola-william-ack
File name:cc081bbdec3133f1703e60cbd39b82c2.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:560'061 bytes
First seen:2021-12-20 09:44:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 12288:wurhk+aKEdJnlRWS8SgdcbHldxXcZetbdyE:wkCDNlRv8SucxdxieJx
Threatray 12'512 similar samples on MalwareBazaar
TLSH T126C4F001BAC996A1DE1E2E746923447E43BB3C24BE7C957F624A7A5B27F33D3001E941
File icon (PE):PE icon
dhash icon 30f0f0ccccf0f0f0 (1 x Formbook, 1 x AveMariaRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/215425/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/2727/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
60%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/61c050a08991ba72b38e4867/reports/eb447b9f-640d-4a29-a4f0-110d391e8e2c/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/78863aef-6cda-469c-b3aa-7d3febfb8126
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/910184
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)
Multi AV Scanner detection for domain / URL
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
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 542660 Sample: ozWOaSO7I7.exe Startdate: 20/12/2021 Architecture: WINDOWS Score: 100 31 www.group-place.com 2->31 33 Multi AV Scanner detection for domain / URL 2->33 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 3 other signatures 2->39 11 ozWOaSO7I7.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\jpfkaj.dll, PE32 11->29 dropped 49 Tries to detect virtualization through RDTSC time measurements 11->49 51 Injects a PE file into a foreign processes 11->51 15 ozWOaSO7I7.exe 11->15         started        signatures6 process7 signatures8 53 Modifies the context of a thread in another process (thread injection) 15->53 55 Maps a DLL or memory area into another process 15->55 57 Sample uses process hollowing technique 15->57 59 Queues an APC in another process (thread injection) 15->59 18 explorer.exe 15->18 injected process9 process10 20 cmmon32.exe 18->20         started        signatures11 41 Self deletion via cmd delete 20->41 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        25 explorer.exe 1 146 20->25         started        process12 process13 27 conhost.exe 23->27         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-20 19:17:58 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjnvuuy2hmiu53ccx3acjtq7bvaxriijyccramiydhcy5eqp3eha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
33dd7290dd0dd02b34235fda39f1d72c369e01aa13854e0c792c048302f2f094
Formbook
55cb62507ca0a059b4ccd73090352bc2ca8aef120a329787a3b635a679b6dff8
Formbook
63af99e8a19debed050e3c5797d9ca523cfbe8dc0da94c6f9d0514691b1ccfd5
Formbook
72fa6db7a26f706a401ec08755e29dd21034f7018e784be28b42df9001c2c9c9
Formbook
8ddb1b007d499a165554e933dcfb0ce8a7ced3506f2609c2a5225c64755bb69a
Formbook
b207cf6e0fe84692f4311e2768d913bae8005da5f7ed4cf1cee2459a6f62faa9
Formbook
ddae9e103982ab3a95b3095094152dca4f4b838dadc4c6128032b8e78f4d2059
Formbook
eb98b6a45ef85a90508b5b2a1c2b9122b34ac6dc62eadd58b0bc15bfb9e868c0
Formbook
f4ba4c7cfa06963a05eb720c098686c8296e799fcfe96c7f44ae1b9ef814c1da
Formbook
fdb244a8723be1f9f68aa8ff5639dad8f075934f9a6f0511adf3992802de1a28
Formbook
+ 12'502 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:hf9j loader rat
Link:
https://tria.ge/reports/211220-lq26saabd9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Xloader Payload
Xloader
Unpacked files
SH256 hash:
3c9638d307f9920cb02a8f2a6f7ea09c9475e56091c0fb315a1e22af701ff790
MD5 hash:
90b8fbd5ee3a0d1491119e750b62f893
SHA1 hash:
24bc7c117ac2e9f37cd9b6a6f6f49371b45b58a2
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/68896a9e-f429-495a-bf0e-e64287850b7f/
Parent samples :
eb98b6a45ef85a90508b5b2a1c2b9122b34ac6dc62eadd58b0bc15bfb9e868c0
4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e
SH256 hash:
d8459f579466cde3c592dbc50d5a6751bba39a212fa0d90b743289834abcdad7
MD5 hash:
58e791d495a0de0a3554ef740f76cc63
SHA1 hash:
0802cdac01b8885c901e81561147e96c06ce2385
Link:
https://www.unpac.me/results/68896a9e-f429-495a-bf0e-e64287850b7f/
SH256 hash:
4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e
MD5 hash:
cc081bbdec3133f1703e60cbd39b82c2
SHA1 hash:
ec85d3804df7f90e77edc0861f85523a467953db
Link:
https://www.unpac.me/results/68896a9e-f429-495a-bf0e-e64287850b7f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4a5b5a531a3b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 4a5b5a531a3b114eec42bec024ce1f0d4178a109c08510311819c58e920fd90e

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/215425/
  
URLhaus
https://urlhaus.abuse.ch/url/1866161/
  
Delivery method
Distributed via web download

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