MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 434655800ff8d745df2462881f0fe044f2af72512217dd531beffbfea0e2b1a6. 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 1 File information Comments

SHA256 hash: 434655800ff8d745df2462881f0fe044f2af72512217dd531beffbfea0e2b1a6
SHA3-384 hash: a07bc63f64d873d95b683248c81598ffc6d0b774d6446ce325f92f6d3be6a28717bd4e6a061444f3031afcb6febce90d
SHA1 hash: 4e82d22440063a440415496e8b34af6330c57312
MD5 hash: 1be8992516510c76e9fde44f9ee1ea75
humanhash: quebec-orange-sierra-one
File name:1be8992516510c76e9fde44f9ee1ea75.exe
Download: download sample
Signature Formbook
File size:224'872 bytes
First seen:2022-04-21 08:46:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (719 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 3072:l1NjcVVnLpPunbTwahjqgzO8J234rX6XuQH15yJh22G/rh8+QFbkwOSdQEdTLMmz:HNeZmTZhj8Mu4rtswX6oFb5T0wwlVE
Threatray 15'208 similar samples on MalwareBazaar
TLSH T1152402607B78C9D7FA4746712C3E6A6E9EEBD5062470AA0F03154FDC3EA1A07871A790
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed 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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
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
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
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: 612992 Sample: K2C7fUVXKP.exe Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 37 www.keukentafelrestaurant.store 2->37 39 www.cheyannejewels.com 2->39 41 shops.myshopify.com 2->41 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 8 other signatures 2->65 12 K2C7fUVXKP.exe 18 2->12         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\Temp\zogoai.exe, PE32 12->35 dropped 15 zogoai.exe 12->15         started        process6 signatures7 77 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->77 79 Tries to detect virtualization through RDTSC time measurements 15->79 81 Injects a PE file into a foreign processes 15->81 18 zogoai.exe 15->18         started        process8 signatures9 51 Modifies the context of a thread in another process (thread injection) 18->51 53 Maps a DLL or memory area into another process 18->53 55 Sample uses process hollowing technique 18->55 57 Queues an APC in another process (thread injection) 18->57 21 explorer.exe 5 187 18->21         started        25 explorer.exe 18->25 injected process10 dnsIp11 43 www.trendrelation.com 217.160.0.60, 49753, 80 ONEANDONE-ASBrauerstrasse48DE Germany 21->43 45 www.aixiaoka.top 39.109.117.185, 49744, 49745, 80 HKKFGL-AS-APHKKwaifongGroupLimitedHK Hong Kong 21->45 47 19 other IPs or domains 21->47 67 System process connects to network (likely due to code injection or exploit) 21->67 27 rundll32.exe 12 21->27         started        signatures12 process13 dnsIp14 49 www.aixiaoka.top 27->49 69 System process connects to network (likely due to code injection or exploit) 27->69 71 Modifies the context of a thread in another process (thread injection) 27->71 73 Maps a DLL or memory area into another process 27->73 75 Tries to detect virtualization through RDTSC time measurements 27->75 31 cmd.exe 1 27->31         started        signatures15 process16 process17 33 conhost.exe 31->33         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-04-21 08:47:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:formbook family:xloader campaign:ud5f loader persistence rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
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
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Formbook
Xloader
Unpacked files
SH256 hash:
d0976266bc8ecea457880dd408a41febf842e6142de40e11514350a7ac23b9bf
MD5 hash:
530778446a3131074ac2243502e09a3a
SHA1 hash:
004ae9d78d78da287fed352e8231e18ee5f62612
SH256 hash:
434655800ff8d745df2462881f0fe044f2af72512217dd531beffbfea0e2b1a6
MD5 hash:
1be8992516510c76e9fde44f9ee1ea75
SHA1 hash:
4e82d22440063a440415496e8b34af6330c57312
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:crime_win32_ransom_avaddon_1
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819

File information


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

Web download

Formbook

Executable exe 434655800ff8d745df2462881f0fe044f2af72512217dd531beffbfea0e2b1a6

(this sample)

  
Delivery method
Distributed via web download

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