MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 0e6c9ec44aee5518a67ba5b5beda49639a715f191bb77099ecd57e326fc0d811. 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
| SHA256 hash: | 0e6c9ec44aee5518a67ba5b5beda49639a715f191bb77099ecd57e326fc0d811 |
|---|---|
| SHA3-384 hash: | 522a3dc2a24af58f6bd88a801b6b64da7b6de63d6b9e94e80271f58bd7b0c92919c75a22e46791649de03aca3a6a9a7c |
| SHA1 hash: | ee53af6e8315633f4be8552e31183cca47a298f6 |
| MD5 hash: | 7bc5aa156b65b600db5b75ee2e420126 |
| humanhash: | speaker-march-uranus-beer |
| File name: | IRS Notice Letter.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'354'224 bytes |
| First seen: | 2020-12-22 15:49:20 UTC |
| Last seen: | 2020-12-22 17:39:04 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:W+MGP/M8RBn6PI9wdhPl4Uy8M/Y10pejZbZrzjkfT7k58HQFpnd4a4cYHTQjROzS:W+MXz |
| Threatray | 3'238 similar samples on MalwareBazaar |
| TLSH | DD555F02498168CBD7B3D090A34EC2D6B38795DCE7EA5FD4AE10E25532CC4B7EBA9D41 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook IRS |
abuse_ch
Malspam distributing Formbook:HELO: mail.ozokgroup.com
Sending IP: 185.111.235.60
From: "IRS" <noreply@irs.gov>
Reply-To: noreply@irs.gov
Subject: IRS NOTICE LETTER TU
Attachment: IRS Notice Letter.zip (contains "IRS Notice Letter.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IRS Notice Letter.exe
Verdict:
Malicious activity
Analysis date:
2020-12-22 15:55:22 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
Initial sample is a PE file and has a suspicious name
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
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
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2020-12-22 15:50:11 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'228 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.aizimov.com/09rb/
Unpacked files
SH256 hash:
0e6c9ec44aee5518a67ba5b5beda49639a715f191bb77099ecd57e326fc0d811
MD5 hash:
7bc5aa156b65b600db5b75ee2e420126
SHA1 hash:
ee53af6e8315633f4be8552e31183cca47a298f6
SH256 hash:
9830d08f0c95dae2f9a20da4ddb94a46ed748a21419778189441784b81388f25
MD5 hash:
8525bc3e81bc6e506c5f8ffe91eb7a3d
SHA1 hash:
584deb2ac1209c9281c975ced06f9a34a077d1b2
SH256 hash:
967572c6c53412aa84b71e8fac079afa64436c5594de5a5142db140f0a171497
MD5 hash:
15d9f7ac7353a1c6fabb1596aad9e26e
SHA1 hash:
b9dfe635342c547eab59616d8be120e3bae9dd5a
Detections:
win_formbook_g0
win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Potentially Unwanted Application
Score:
0.40
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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