MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b40312b973ddb1ec411375991f52c6d19204e650d90507445782aaa05bc02e46. 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: 10
| SHA256 hash: | b40312b973ddb1ec411375991f52c6d19204e650d90507445782aaa05bc02e46 |
|---|---|
| SHA3-384 hash: | b89fd80b5672e7c84216e2ed7f049e8df7fb5b70bd3cf383996652fd029a28d6a576a983dfff627c8e84f903a8f1f1b1 |
| SHA1 hash: | 706a40efe57a6351736054e3758de58573465a95 |
| MD5 hash: | b911af1e5d84afbe42050f97cef3573b |
| humanhash: | violet-two-salami-connecticut |
| File name: | b911af1e5d84afbe42050f97cef3573b |
| Download: | download sample |
| Signature | Formbook |
| File size: | 877'056 bytes |
| First seen: | 2021-08-19 14:31:02 UTC |
| Last seen: | 2021-08-19 16:00:06 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:k9tGe3aYKfQN+8kX8B5bGck+NaYb6cwjtj7QrD+IaNX0ejXW3pQ:1saOY0ZGckIPbUjtjUDNG0eDWZ |
| Threatray | 8'098 similar samples on MalwareBazaar |
| TLSH | T13015063D19B91637D1B5C365EBE58423F148985FB511AE6AACDE03A7030BA8734C723E |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
143
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
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
Performs DNS queries to domains with low reputation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-19 14:31:06 UTC
AV detection:
17 of 27 (62.96%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 8'088 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:ahdu loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.casinoregio.com/ahdu/
Unpacked files
SH256 hash:
4f7aace1958e3eedf1cfd60c29db6048da18be443a8f47c58ce241304d61df6f
MD5 hash:
252cdb14336238aef50ecd0b0ab56325
SHA1 hash:
21e8e3e0c968452214bee27ce862d118300eb039
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
SH256 hash:
fcf68a4351c4182fd81b9474aa71e04cc963ccbe1d560c05b3d7a16311ad7243
MD5 hash:
18c5c00f718fa40e613a1b9d4590c7a2
SHA1 hash:
9c6c2eb6d2b8a5bae5486b1873a9bb6430634043
SH256 hash:
b40312b973ddb1ec411375991f52c6d19204e650d90507445782aaa05bc02e46
MD5 hash:
b911af1e5d84afbe42050f97cef3573b
SHA1 hash:
706a40efe57a6351736054e3758de58573465a95
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | 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
Delivery method
Distributed via web download
Comments
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