MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 58a3b0684756dd561c0300547a910b82c2b177d7644cca51b1e746302fe8fdbc. 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: | 58a3b0684756dd561c0300547a910b82c2b177d7644cca51b1e746302fe8fdbc |
|---|---|
| SHA3-384 hash: | c2f9209471a9873a7ed4a5bfc9e1ea81016c4699aa5db609434def58e037d321c5482549c837baedf82aa36aaa5d9a72 |
| SHA1 hash: | e39048584db159f732c6f1b332adece7da67b0ff |
| MD5 hash: | 049fea34ec6a74961a27d11d2c429560 |
| humanhash: | river-cold-hydrogen-oranges |
| File name: | 049fea34ec6a74961a27d11d2c429560 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 482'924 bytes |
| First seen: | 2022-03-01 18:58:31 UTC |
| Last seen: | 2022-03-01 21:55:44 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:UGiJTyiedBXpBzgjIAQAKzA1h5iUklSLOEsIZO6f47yCRbjiM8uSVpu/:m5UXTIQAKzA1fXkkqUO65CRbz8uSVpw |
| Threatray | 13'876 similar samples on MalwareBazaar |
| TLSH | T1FDA40518D876A2F1CADB3131A9987F2945116EF2384CC53252FE3E463D59B0E3CA4DA7 |
| File icon (PE): |  |
| dhash icon | 6ce4c4dcccccd4d4 (1 x Formbook) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
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
Searching for synchronization primitives
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
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.
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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
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:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-03-01 18:59:15 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 27 (81.48%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 13'866 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:wesd 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
Loads dropped DLL
Executes dropped EXE
Xloader Payload
Xloader
Unpacked files
SH256 hash:
ef171b39e75029636c7bdc37f7a31942f990355230e606aea1e7a993d30502f5
MD5 hash:
c4976a4e2dc0fbd79176008e4c16a515
SHA1 hash:
68bc440ead684d0bd4a70a6a3a7510ab1248080a
SH256 hash:
9cba583956dc3a86d34547dd4664a252f462caeee10dfcaa1e5680bc30ff8745
MD5 hash:
55b4d82b5b8b6ca5ef51e542ed771531
SHA1 hash:
581983e28e7f9845c35bce90c4d792fd1ee8a032
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
58a3b0684756dd561c0300547a910b82c2b177d7644cca51b1e746302fe8fdbc
MD5 hash:
049fea34ec6a74961a27d11d2c429560
SHA1 hash:
e39048584db159f732c6f1b332adece7da67b0ff
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
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 |
| Rule name: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
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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