MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b658c25f1973d56d96fc267f7e626aadf9c6785b1f0a30906b5311dad24e97ca. 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: 16
| SHA256 hash: | b658c25f1973d56d96fc267f7e626aadf9c6785b1f0a30906b5311dad24e97ca |
|---|---|
| SHA3-384 hash: | 1a65432ebfdf1d991a1d5845a18a122c30823c0cc70fba49476e0956809ac912f4242732bda9003ccdcf61ed47b59e67 |
| SHA1 hash: | cfb18eb436988b60aad2b8b8176518cbc5ead39b |
| MD5 hash: | 92622eaeff7428021e9ebac1b490ad92 |
| humanhash: | october-uranus-oven-delta |
| File name: | 92622eaeff7428021e9ebac1b490ad92.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 744'960 bytes |
| First seen: | 2022-03-15 14:32:39 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:kmh4J9EAXNRFkrYEID7STduSghxtH9Gr0UdSKhbXeU9ouJ91ds6xEk1rHx35:/IaKhceUJhJ |
| TLSH | T103F4CB2A38BA100DF261AD6C6BBCB176915EF7F226365CB70DF7050A11129F0CB9D627 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
purchaseXrequestXforXMODUSTREBINJE.xlsx
Verdict:
Malicious activity
Analysis date:
2022-03-15 08:34:09 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader 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 file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
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.
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Allocates memory in foreign processes
Antivirus detection for URL or domain
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-15 10:19:11 UTC
AV detection:
22 of 27 (81.48%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
0e65230eca8bd952bc31e52adb3b3dd8f4324b9a1d7bb33cb084a5d491ebdd56
MD5 hash:
69db2723789e9479954e4a2753efcd50
SHA1 hash:
8a624d62c70d52fd4080c770287f39445c8c8975
SH256 hash:
e7938db74b624b1bf7de3a9a5bddc37d20541cb28dc189fa21580c9f2344e9ad
MD5 hash:
ad0b2e934012f4b2a0cd14a0d87aa372
SHA1 hash:
4ee150baf9943031ee2837240d70e895f0df37f4
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
b658c25f1973d56d96fc267f7e626aadf9c6785b1f0a30906b5311dad24e97ca
MD5 hash:
92622eaeff7428021e9ebac1b490ad92
SHA1 hash:
cfb18eb436988b60aad2b8b8176518cbc5ead39b
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
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: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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
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