MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8. 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
| SHA256 hash: | 4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8 |
|---|---|
| SHA3-384 hash: | ed198ce9bcfceb7138f9683e69de376f47e711636b0a339b0126fd7fd1bb37f7ee595a77adc61e38f5adc41ce76f8b42 |
| SHA1 hash: | 1dcfaae594e3690d3fef5fd4de855d02e9cbb2a5 |
| MD5 hash: | 1624595e2354ff7be9e7dc6def2ed69e |
| humanhash: | uniform-uncle-grey-coffee |
| File name: | vbc.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 305'085 bytes |
| First seen: | 2021-11-24 14:40:16 UTC |
| Last seen: | 2021-11-24 16:48:54 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiIouWvjqebPleWFVGwN5QwB0ZmAFd+DnMAlym7a:fzuebPlDVGwNh3AFPb |
| Threatray | 11'700 similar samples on MalwareBazaar |
| TLSH | T1CE54220D7BC4C2B3FACD5F390DBB27B6FBFB82C54A1A17528B682F2564851425E0B452 |
| File icon (PE): |  |
| 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 :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vbc.exe
Verdict:
Malicious activity
Analysis date:
2021-11-24 15:33:36 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
Сreating synchronization primitives
DNS request
Launching a process
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending an HTTP GET request
Unauthorized injection to a system 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.
Verdict:
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
Machine Learning detection for dropped file
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
Performs DNS queries to domains with low reputation
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)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
xloader
Threat name:
Win32.Trojan.SpyNoon
Status:
Malicious
First seen:
2021-11-24 12:58:34 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 28 (64.29%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'690 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:m07f loader rat
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
Uses the VBS compiler for execution
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ff4cu6twc.xyz/m07f/
Unpacked files
SH256 hash:
4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8
MD5 hash:
1624595e2354ff7be9e7dc6def2ed69e
SHA1 hash:
1dcfaae594e3690d3fef5fd4de855d02e9cbb2a5
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
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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