MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c7d7a05d604125b7c0ddfd95a1a7c7279ac93a002cc993bbad938b709469cc23. 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
| SHA256 hash: | c7d7a05d604125b7c0ddfd95a1a7c7279ac93a002cc993bbad938b709469cc23 |
|---|---|
| SHA3-384 hash: | 5128409646608c36687e0d6414004fab9bc890cf14f4c156ec19d96fbef9c2fde385072d4ec0d041aa7dda8f24922260 |
| SHA1 hash: | a6e71cbac6dcc82a28e6d5d179daf3bede137ff7 |
| MD5 hash: | 588c4ddbb8914423092006fd0827e73a |
| humanhash: | hot-moon-one-sweet |
| File name: | Request For Quotation.PDF.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 842'240 bytes |
| First seen: | 2021-02-20 11:26:02 UTC |
| Last seen: | 2021-02-20 12:47:52 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'635 x Formbook, 12'243 x SnakeKeylogger) |
| ssdeep | 12288:Z9g6TuzocgZgVm2WCDa0YIefg/aaXwMBCYmU:ZFFZSm2ZAY/WM3mU |
| Threatray | 3'849 similar samples on MalwareBazaar |
| TLSH | CA056C59B09FA583D62E8CB66E5F507011E0677E8078D21D35E1A7BA81E7383201FE9F |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing unidentified malware:HELO: freyzmarketing.com
Sending IP: 188.138.122.57
From: Kerwin Naidoo <knaidoo@jdi-group.com>
Subject: Urgent: Request For Quotation
Attachment: Request For Quotation.PDF.gz (contains "Request For Quotation.PDF.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
228
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Sending a custom TCP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
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 very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspicious Double Extension
System process connects to network (likely due to code injection or exploit)
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:
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Status:
Malicious
First seen:
2021-02-20 10:13:41 UTC
AV detection:
11 of 47 (23.40%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'839 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook agilenet rat spyware stealer trojan
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Deletes itself
Obfuscated with Agile.Net obfuscator
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.silkcitytrade.com/oze/
Unpacked files
SH256 hash:
c7d7a05d604125b7c0ddfd95a1a7c7279ac93a002cc993bbad938b709469cc23
MD5 hash:
588c4ddbb8914423092006fd0827e73a
SHA1 hash:
a6e71cbac6dcc82a28e6d5d179daf3bede137ff7
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.
Malspam
Delivery method
Distributed via e-mail attachment
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