MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b807f3822e747f7135cfbe8941d7fb58924745c27880c4041a2554fab96533dc. 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: | b807f3822e747f7135cfbe8941d7fb58924745c27880c4041a2554fab96533dc |
|---|---|
| SHA3-384 hash: | 6ff4dae899c8f1c8f8746de5239569d45982ab98b5f29ead4802e4d82145b125c350b31a626f38a6b9dd61503ff5e058 |
| SHA1 hash: | 5259bcaf8a540aaeb33c580757eef9bbfa6cffec |
| MD5 hash: | a3fb449e287c9db3da3898bf6d536b67 |
| humanhash: | nevada-wisconsin-jig-ohio |
| File name: | a3fb449e287c9db3da3898bf6d536b67 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 552'448 bytes |
| First seen: | 2021-11-22 14:24:08 UTC |
| Last seen: | 2021-11-22 15:49:08 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger) |
| ssdeep | 12288:eChtD00TnoC+s/M7Uktzu1EmZtqiA42/M9U3:VhC0cC+j7UktYPteR |
| Threatray | 11'482 similar samples on MalwareBazaar |
| TLSH | T11EC4020036A86B96ED398BF11671D49003B47E2F297AC21DACC725CE5676F00AB51FB7 |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a3fb449e287c9db3da3898bf6d536b67
Verdict:
Suspicious activity
Analysis date:
2021-11-22 14:28:05 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
fareit formbook obfuscated packed
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:
Generic Malware
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.Swotter
Status:
Malicious
First seen:
2021-11-19 22:31:54 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'472 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:s3f1 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.papllc.biz/s3f1/
Unpacked files
SH256 hash:
8afb7a3f5bf3599fed1b4814328f34458c340c4ee51c1b125754f3688f71ac12
MD5 hash:
77f9bad64038508be14fe5cc80d30f96
SHA1 hash:
4737f304c4a9f8c557fdf3d267bea2223583dffa
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
d8519ee83323072f8aa4c290f5df332ee8a457bb49fef616c92c62c1f492e76a
MD5 hash:
3dc431cf87ad857eecddc135345fe8a3
SHA1 hash:
87020efe5e3471337d5bfc689aaaa142827b9601
SH256 hash:
cc5c5860e83b708cd158454165cbeb714767119946049de5aa7677685be75c14
MD5 hash:
83cbea4dec6e5b64a85ee9b6f9ff7598
SHA1 hash:
5c1d12b792c32ba73b7bf2634da5e4d9fbcd7d4e
SH256 hash:
b807f3822e747f7135cfbe8941d7fb58924745c27880c4041a2554fab96533dc
MD5 hash:
a3fb449e287c9db3da3898bf6d536b67
SHA1 hash:
5259bcaf8a540aaeb33c580757eef9bbfa6cffec
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
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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