MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
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SHA256 hash: 945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5
SHA3-384 hash: 0b2baac7b2100785c6c220cc9c6af22318b07b0559d212982cb2c4fb52ba2df23ad37890fa04d4a64fc506255eb3d1dc
SHA1 hash: 679943b9e71caf6af6d1930b3347dd6478e0d8dd
MD5 hash: e6829416fc3898252388037593d99d44
humanhash: kitten-tennessee-wolfram-william
File name:Factura_834.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:254'300 bytes
First seen:2022-02-04 10:50:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owSCzfA3syYVfJWkTH4o0teJvU19Zxeknl:uC0ZAwu0kJvU1dPl
TLSH T13B44120B21E4E1BFD57282311EF38B7DE3FB639016A1425F5BE40F6F8A150CA551A2DA
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter pr0xylife
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
224
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Factura_834.pdf.tar
Verdict:
Suspicious activity
Analysis date:
2022-02-01 20:17:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ec3a6bcc-faef-4dd3-991d-100b0a8edfe8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/232973/
Detection(s):
Win.Trojan.Injectorx-9938277-0
Create hunting rule

SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
Create hunting rule

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:
RaRansomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/278febe3-1cda-4e34-92c7-55062b275ac9
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/934149
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Suspicious Double Extension
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 566624 Sample: Factura_834.pdf.exe Startdate: 04/02/2022 Architecture: WINDOWS Score: 100 35 www.instant-finance-deals.com 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 8 other signatures 2->43 11 Factura_834.pdf.exe 19 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\nanylgbtzca.dll, PE32 11->33 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 15 Factura_834.pdf.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 1 149 15->18         started        20 explorer.exe 15->20 injected process9 process10 22 msdt.exe 18->22         started        25 autofmt.exe 18->25         started        signatures11 45 Self deletion via cmd delete 22->45 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 27 cmd.exe 1 22->27         started        29 explorer.exe 1 141 22->29         started        process12 process13 31 conhost.exe 27->31         started       
Gathering data
Threat name:
Win32.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2022-02-02 03:26:23 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 43 (62.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=srpwpltho2a6ctnqg33vh5dtgnkw72tpha3355zztzca426bm7kq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g12n persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220204-mxtcwshebk/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Sets service image path in registry
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
5a2d6d3868596fd71684e7657bba70267506ded6e876ee6526fa086dcc244c07
MD5 hash:
d3950f72885c6ef6644eaa0fcde0f80d
SHA1 hash:
51b33bb7c9ee61808351f5121257c5f9b8fbf9da
Link:
https://www.unpac.me/results/236e9ddf-f7df-4afd-9261-6e1d983f03bc/
SH256 hash:
e89bca9b32f80c66b5f9c331a5d714f392e18268b519d78ba2d84311edf82a06
MD5 hash:
9a52c1f08b4fbba688a637d66f58b87c
SHA1 hash:
17b155b588f914971ad8c5faa9e90177bdc7b354
Link:
https://www.unpac.me/results/236e9ddf-f7df-4afd-9261-6e1d983f03bc/
SH256 hash:
945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5
MD5 hash:
e6829416fc3898252388037593d99d44
SHA1 hash:
679943b9e71caf6af6d1930b3347dd6478e0d8dd
Link:
https://www.unpac.me/results/236e9ddf-f7df-4afd-9261-6e1d983f03bc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.43
Link:
https://yomi.yoroi.company/submissions/945f67ae677681e14db036f753f47333556fea6f3837bef7399e440e6bc167d5

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

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/232973/

Comments