MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cac5a5a1cd604a792b9231fb65fe38110c631873cfa834bf4f43b9418d1ec17f. 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: | cac5a5a1cd604a792b9231fb65fe38110c631873cfa834bf4f43b9418d1ec17f |
|---|---|
| SHA3-384 hash: | fca1aaa08246477295d8b1f6e5002c4dd281add5b8bf831ac7e97086a7f897947105a1a95167be40c2863ccd4e0b78e3 |
| SHA1 hash: | f6bcccfe7a15aa6ec76aa60e27e84f81ce966019 |
| MD5 hash: | a01ccf9ea1cd42165dcf68211a819193 |
| humanhash: | muppet-september-uranus-tango |
| File name: | Swift_copy#4554.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 475'125 bytes |
| First seen: | 2021-08-13 11:13:38 UTC |
| Last seen: | 2021-08-16 14:59:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3843c741cdc52e7d421ce37832f6b109 (6 x Formbook) |
| ssdeep | 12288:IsZnGIIyuA5qe7RZlSzE7hvaVciuK8Ipuu3AnbSUsFkJ:IsZnGUuvy23LouCSUfJ |
| Threatray | 8'007 similar samples on MalwareBazaar |
| TLSH | T151A4CF1FAB97CC20D0512CBE1A21D2A51A25A7300B2B56A352B93E6DCB15FFB1C3C5D7 |
| dhash icon | b2e8a8b2b2a9ecb2 (1 x Formbook) |
| Reporter |  GovCERT_CH |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
3
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Swift_copy#4554.exe
Verdict:
Malicious activity
Analysis date:
2021-08-13 11:15:34 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Unauthorized injection to a recently created process
Launching a process
DNS request
Connection attempt
Sending an HTTP GET request
Sending a UDP request
Unauthorized injection to a system process
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
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
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 domain / URL
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:
2021-08-13 07:40:33 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 7'997 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:ma5c loader rat suricata
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.cave-dive-make.com/ma5c/
Unpacked files
SH256 hash:
a2d2830ba63737390929ebe91ee71705c35bc16e3021fe7e0afc1236dd42558c
MD5 hash:
6d30e584d6e6d589688e15ed87c711f1
SHA1 hash:
34c0889101f23f94989abea4352f53669d4f9504
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
cac5a5a1cd604a792b9231fb65fe38110c631873cfa834bf4f43b9418d1ec17f
MD5 hash:
a01ccf9ea1cd42165dcf68211a819193
SHA1 hash:
f6bcccfe7a15aa6ec76aa60e27e84f81ce966019
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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