MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0488a1801640896ea2e4922dcd03d47bea603db8b938aa2060bd529060ec37fd. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 0488a1801640896ea2e4922dcd03d47bea603db8b938aa2060bd529060ec37fd
SHA3-384 hash: 9fa04ea053908514bdb94b13b898d6b65ac8ce29d275bfe13627eb5dd68f960e47700d7893baab0829f76cf40f2ec31a
SHA1 hash: bee2a4f45ab9a1f2e3521953cd72192bf619df0a
MD5 hash: ce821b7c719322f469a51639ecd38af0
humanhash: burger-neptune-alpha-happy
File name:ce821b7c719322f469a51639ecd38af0.exe
Download: download sample
Signature Formbook
File size:1'143'296 bytes
First seen:2022-03-18 11:42:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:x3I9zBlaOmprhFvPAVByKkv2O9HyDVQGtMK5F6XUT:x3gzqprhpPA5k1yR6X2
Threatray 10'135 similar samples on MalwareBazaar
TLSH T1F335232A37B88613F17F03F5A4D31954CFB07256640AE78EDE81A4E81D227D94E2F1A7
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe keylogger obfuscated packed replace.exe shell32.dll
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
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 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 Add Scheduled Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 591937 Sample: O3wDBktqtF.exe Startdate: 18/03/2022 Architecture: WINDOWS Score: 100 41 www.skinlushesthetics.com 2->41 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 10 other signatures 2->51 9 O3wDBktqtF.exe 7 2->9         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\yspxUUhyg.exe, PE32 9->33 dropped 35 C:\Users\...\yspxUUhyg.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\user\AppData\Local\...\tmp1E05.tmp, XML 9->37 dropped 39 C:\Users\user\AppData\...\O3wDBktqtF.exe.log, ASCII 9->39 dropped 55 Uses schtasks.exe or at.exe to add and modify task schedules 9->55 57 Adds a directory exclusion to Windows Defender 9->57 59 Tries to detect virtualization through RDTSC time measurements 9->59 61 Injects a PE file into a foreign processes 9->61 13 O3wDBktqtF.exe 9->13         started        16 powershell.exe 24 9->16         started        18 schtasks.exe 1 9->18         started        20 O3wDBktqtF.exe 9->20         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 13->63 65 Maps a DLL or memory area into another process 13->65 67 Sample uses process hollowing technique 13->67 69 Queues an APC in another process (thread injection) 13->69 22 explorer.exe 13->22 injected 26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        process9 dnsIp10 43 www.benlaima.com 45.38.133.200, 49787, 80 EGIHOSTINGUS United States 22->43 53 System process connects to network (likely due to code injection or exploit) 22->53 30 cmd.exe 22->30         started        signatures11 process12 signatures13 71 Self deletion via cmd delete 30->71 73 Modifies the context of a thread in another process (thread injection) 30->73 75 Maps a DLL or memory area into another process 30->75 77 Tries to detect virtualization through RDTSC time measurements 30->77
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-17 08:36:18 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:a2rs rat spyware stealer trojan
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
6db7e75163b2d117afd76203d0bc2fff1f267ffe633937ff9a9b753f823099a4
MD5 hash:
3455e0808e822bc26fbf0978c6841ed8
SHA1 hash:
1024880cbd6ecc6831921616507a72afa44c0fc5
SH256 hash:
8fc12d65004794ebdf6906448ef367fe96053bfd9ae03b34e42c4902692f8c48
MD5 hash:
04993eae2a40fa70e2f78473cf95496d
SHA1 hash:
762e52ef4cfdf13398f176707a162c2b847816f1
SH256 hash:
6ff21c090296e9fd3ec2b17e03e184e2396adf4013b2a4f4c9dea5bd7aff38f7
MD5 hash:
7c3fb3e3d91e338ae917c4cb46895e71
SHA1 hash:
ba577b8ccb3c6bbc5e9e3a838aec98859cd4dbaa
SH256 hash:
0488a1801640896ea2e4922dcd03d47bea603db8b938aa2060bd529060ec37fd
MD5 hash:
ce821b7c719322f469a51639ecd38af0
SHA1 hash:
bee2a4f45ab9a1f2e3521953cd72192bf619df0a
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

Formbook

Executable exe 0488a1801640896ea2e4922dcd03d47bea603db8b938aa2060bd529060ec37fd

(this sample)

  
Delivery method
Distributed via web download

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