MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f0a372287ebba19a62630d683fc3292df06a10faeaed2ac68cde0c5b2374844. 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 File information Comments

SHA256 hash: 8f0a372287ebba19a62630d683fc3292df06a10faeaed2ac68cde0c5b2374844
SHA3-384 hash: 12cd925b97792ac744d791165cdc33f68ba1bf69cce707723fcc9841533aacf8d8cfc629ce0c1572dd1a0ccf804a6ec0
SHA1 hash: b1ecaf8a5a7c293189ca633049e20b684d4d3a6b
MD5 hash: bac7a64baf5c5fa1254decf48ec5afdf
humanhash: hotel-river-arkansas-arkansas
File name:best.exe
Download: download sample
Signature Formbook
File size:325'358 bytes
First seen:2021-11-22 14:18:10 UTC
Last seen:2021-11-22 15:49:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGiqfKaXgaoEym4LQWe31YkjwsmCcb8Yr4aFgI4XjqLVG9bAEV7:efKLm4LQWeHjwhb8oM+BAbAEV7
Threatray 11'593 similar samples on MalwareBazaar
TLSH T13E64225166A4889BCE4197740BF3DB7BE3F94BA601658A8B03046F7F3D8620FCA45F52
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
best.exe
Verdict:
Malicious activity
Analysis date:
2021-11-22 20:29:12 UTC
Tags:
installer trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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)
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
Self deletion via cmd delete
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 526388 Sample: best.exe Startdate: 22/11/2021 Architecture: WINDOWS Score: 100 31 www.thesubwaygame.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 4 other signatures 2->45 11 best.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\Temp\...\xrqe.dll, PE32 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 best.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 33 caiyio.net 81.169.145.80, 49789, 80 STRATOSTRATOAGDE Germany 18->33 35 www.mrvalentinsclass.com 18->35 37 www.caiyio.net 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 mstsc.exe 18->22         started        signatures11 process12 signatures13 49 Self deletion via cmd delete 22->49 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2021-11-22 14:18:02 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 45 (51.11%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:j1u6 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.goldenentnefetis.com/j1u6/
Unpacked files
SH256 hash:
8f0a372287ebba19a62630d683fc3292df06a10faeaed2ac68cde0c5b2374844
MD5 hash:
bac7a64baf5c5fa1254decf48ec5afdf
SHA1 hash:
b1ecaf8a5a7c293189ca633049e20b684d4d3a6b
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

  
Delivery method
Other

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