MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e
SHA3-384 hash: 51079445ba16cb771328da38d7497492bb7b0794cefd2761eb55a24ec37d936c8952c55624ee9f4a4adffc91504396b1
SHA1 hash: bb80be7b6a0a3d0c1efd3357107280e52cc8bed9
MD5 hash: 7ca4ca81db6b407009e3498387764932
humanhash: uranus-oscar-five-one
File name:FedEx Shipment doc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:256'274 bytes
First seen:2023-03-08 21:06:55 UTC
Last seen:2023-03-08 22:39:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:PYa6/as2WtKPohVqDhvgMhVOM1+R2chVXjssQaL/fjuE:PY9arWtKPWqdgMhVczjssQKfyE
Threatray 2'250 similar samples on MalwareBazaar
TLSH T1B444122552B0E0E3ED724F302D350A9A2BF4E6258810578E9B4967DDBC67AC1DF4FB21
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FedEx FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
FedEx Shipment doc.exe
Verdict:
Malicious activity
Analysis date:
2023-03-08 21:09:26 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/634f9f00-7485-4873-9ddb-cc317d639b61

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/372775/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65833884.30616.1735.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6408f8ff8b48bcea611f4a21/reports/50113588-ad1b-4c05-88a5-f095f7ddeac0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/34a44b17-10a9-4a6d-9287-eb22f288b060
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189813
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
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 dropped file
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 822690 Sample: FedEx_Shipment_doc.exe Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 28 www.chiyiqian.net 2->28 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 4 other signatures 2->50 10 FedEx_Shipment_doc.exe 19 2->10         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\txnamuy.exe, PE32 10->26 dropped 13 txnamuy.exe 10->13         started        process6 signatures7 64 Antivirus detection for dropped file 13->64 66 Multi AV Scanner detection for dropped file 13->66 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->68 70 Maps a DLL or memory area into another process 13->70 16 txnamuy.exe 13->16         started        process8 signatures9 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Sample uses process hollowing technique 16->40 42 Queues an APC in another process (thread injection) 16->42 19 explorer.exe 4 6 16->19 injected process10 dnsIp11 30 www.hoclaixedanang.top 210.211.120.158, 49716, 49717, 49718 VTDC-AS-VNVietel-CHTCompamyLtdVN Viet Nam 19->30 32 bonaccorso.online 195.110.124.133, 49713, 49714, 49715 REGISTER-ASIT Italy 19->32 34 11 other IPs or domains 19->34 52 System process connects to network (likely due to code injection or exploit) 19->52 54 Performs DNS queries to domains with low reputation 19->54 23 wlanext.exe 13 19->23         started        signatures12 process13 signatures14 56 Tries to steal Mail credentials (via file / registry access) 23->56 58 Tries to harvest and steal browser information (history, passwords, etc) 23->58 60 Modifies the context of a thread in another process (thread injection) 23->60 62 Maps a DLL or memory area into another process 23->62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e/
Threat name:
Win32.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-03-08 07:44:43 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 25 (80.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mwfgucg7o5v2n3c4cim7uc6aejxz7aiper5onao6d7ovwvmvjvxa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
07a32665c106d4c5fab2625bda4d52f6c40b8137728f2ded016b90cad95a8545
Formbook
1583037e8ed80b3e80955da8e0138cbce6faf0fd0df77f50c7551d290ec67f2d
Formbook
53ef5cf03618cf6124b33c3ef3fbb97a993b9612b2fff665bb7de2fec5d7dfac
Formbook
9123b739b8d3d1c2f5a3dabf8c358c77175422d0e83f5edadc7584bd50eb484c
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bf71631457bec8633d10c816bfa914ef51bee4acda9a37c2613697976a21decb
Formbook
bfc9cf8ef1369ba05191e708fea5b6c71d653dee922f15a53a7aed0642e1b756
Formbook
e6d190254a9da63d379fe136d687503b5b4f9eb34f1d45bb15bcca49aa92e79e
Formbook
e904274bd2e5d919c63c6db8c82f908abc10d65fdba772596e2953ab708b1726
Formbook
f75f11958cb9b23e256cd0668e7490113565acd86d66180483e7b909d7750ed3
Formbook
fe0628c0c21a5a3e5b32c3452f470ca46bc2851a0a36e9d5378dbcfc6fdbcee6
Formbook
+ 2'240 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230308-zydeaaga9y/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
8263fc975fc25d6d23870f458c83815f5116ddf8a9e699e0a88e1715f38f1514
MD5 hash:
27f4b2726a60a3472893ea63d8768d46
SHA1 hash:
d4e47a19267fd5c1c20e92a8764b6f12f1066ff9
Link:
https://www.unpac.me/results/05d8c0cc-7f48-4bc1-98ff-c91e27917b01/
SH256 hash:
658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e
MD5 hash:
7ca4ca81db6b407009e3498387764932
SHA1 hash:
bb80be7b6a0a3d0c1efd3357107280e52cc8bed9
Link:
https://www.unpac.me/results/05d8c0cc-7f48-4bc1-98ff-c91e27917b01/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/658a6a08df77/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/658a6a08df776ba6ec5c1219fa0bc0226f9f810f247ae681de1fdd5b55954d6e

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/372775/

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