MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a93b39035f5ae1ace569c25759239f8c0361bf2462cb22f2a780c14de2821fe4. 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: | a93b39035f5ae1ace569c25759239f8c0361bf2462cb22f2a780c14de2821fe4 |
|---|---|
| SHA3-384 hash: | a313ffac35977a089530490c39934dee4532282fa7a47e4f834692f9f58b1a24eeaed13166479ae052dbea2585f05f11 |
| SHA1 hash: | 54df8b2dc7352b75dd09103f2a399fde314e4e53 |
| MD5 hash: | 6e2732d297f1666f6c9eed9de730c39e |
| humanhash: | timing-kentucky-magnesium-december |
| File name: | Lettera di restituzione per Siberia LLC.jpeg.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 914'432 bytes |
| First seen: | 2021-10-04 09:20:11 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e28e7623fc562c080a8912e7dcd203b0 (3 x RemcosRAT, 1 x Formbook) |
| ssdeep | 12288:8yZ9wV/AHhLB8ncBBHpeNwoCoicmuYyqq606/B6O90Oe6jkOGbGS:fbwoP8ncbHpeNwoOc/Yyqq6nPjG |
| Threatray | 9'844 similar samples on MalwareBazaar |
| TLSH | T1FC156D576EE44CBAC45928BE1C4BC6D47A25EE170D2488636BFF0C5C6F3B36138186E6 |
| File icon (PE): |  |
| dhash icon | 88c7ce3cbddc2f31 (24 x RemcosRAT, 12 x Formbook, 8 x Loki) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook geo ITA |
Intelligence
File Origin
# of uploads :
1
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Lettera di restituzione per Siberia LLC.jpeg.exe
Verdict:
Malicious activity
Analysis date:
2021-10-04 09:24:14 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
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Deleting a system file
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
keylogger packed
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Found malware configuration
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-10-02 19:00:35 UTC
AV detection:
13 of 45 (28.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 9'834 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:n7ak rat spyware stealer trojan
Behaviour
Modifies registry class
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
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.kmresults.com/n7ak/
Unpacked files
SH256 hash:
f808a11e5b1cb4332bb4d65cdbcf1e0ca7323b15bcf73cb7462ad3eb30f05703
MD5 hash:
6cfdeebc3c72279486ddd229eb14b009
SHA1 hash:
e3a2a0a2a0fabd55415c9007f52c79fe9e19e0a7
SH256 hash:
a93b39035f5ae1ace569c25759239f8c0361bf2462cb22f2a780c14de2821fe4
MD5 hash:
6e2732d297f1666f6c9eed9de730c39e
SHA1 hash:
54df8b2dc7352b75dd09103f2a399fde314e4e53
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.78
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_EXE_DiscordURL |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables Discord URL observed in first stage droppers |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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