MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de
SHA3-384 hash: 4563ea06405f4fa7812dfb01c65f2ad4b6d62ec1bcfc302c80eaa72d307967d33efca4976bf94722b4b71320692071d5
SHA1 hash: d3d3f78a03b7098dc0a9f94ed2a1f75429beffbc
MD5 hash: 233c7c335b38d3e693c01b2ee6535634
humanhash: cup-london-white-sodium
File name:233c7c335b38d3e693c01b2ee6535634.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'066'496 bytes
First seen:2021-03-03 06:51:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:AVEQxmI+0wuCYYpqC5y0U6VpWskEYzEWLnKRWu3/by:AiuMg0U6Vp3kLFLKRtu
TLSH 5435ADE816A93CD4F1B2DF7069F825D1A2F97573E60DE5493866D2FA701A890CB70338
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
233c7c335b38d3e693c01b2ee6535634.exe
Verdict:
Suspicious activity
Analysis date:
2021-03-03 06:57:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7078bbb4-b518-4533-b3f9-5fdb4611b42c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/121219/
Detection(s):
SecuriteInfo.com.Artemis233C7C335B38.7405.17082.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/625546
Signature
.NET source code contains very large strings
Binary contains a suspicious time stamp
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)
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
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 361753 Sample: OVwf3NwhY3.exe Startdate: 03/03/2021 Architecture: WINDOWS Score: 100 35 www.quantumcr.net 2->35 37 quantumcr.net 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 9 other signatures 2->51 11 OVwf3NwhY3.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\OVwf3NwhY3.exe.log, ASCII 11->33 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 15 OVwf3NwhY3.exe 11->15         started        18 OVwf3NwhY3.exe 11->18         started        20 OVwf3NwhY3.exe 11->20         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 22 explorer.exe 15->22 injected process9 dnsIp10 39 www.gomonno.com 81.17.18.196, 49729, 80 PLI-ASCH Switzerland 22->39 41 baldheadbilly.com 34.102.136.180, 49735, 80 GOOGLEUS United States 22->41 43 3 other IPs or domains 22->43 53 System process connects to network (likely due to code injection or exploit) 22->53 26 colorcpl.exe 22->26         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-03 06:52:14 UTC
AV detection:
14 of 47 (29.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hlejdnxqnwc6hsxo7o3i2bndh25lxvg6pgppd2kkt6omfosbmppa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210303-7n41m962g2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.lillinx.com/hks/
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
Link:
https://www.unpac.me/results/a5b2edc1-694f-45e2-aa96-6efb77dd05a3/
SH256 hash:
3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de
MD5 hash:
233c7c335b38d3e693c01b2ee6535634
SHA1 hash:
d3d3f78a03b7098dc0a9f94ed2a1f75429beffbc
Link:
https://www.unpac.me/results/a5b2edc1-694f-45e2-aa96-6efb77dd05a3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de

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_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 3ac891b6f06d85e3caeefbb68d05a33ebabbd4de799ef1e94a9f9cc2ba4163de

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1028828/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1028941/
Cape
Cape
https://www.capesandbox.com/analysis/121219/

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