MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22. 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


MysticStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22
SHA3-384 hash: 669a56af710b03a2832280333d4db3a4d562ce8cb855c6f89100c9fdc0f4094023e1e637051b762c1b95faa775b80450
SHA1 hash: 02b915955306848cd811e6d038b4af6921f83969
MD5 hash: bebef81ac2e0a1d0d1a9a77dc0aae50f
humanhash: london-chicken-kansas-bakerloo
File name:bebef81ac2e0a1d0d1a9a77dc0aae50f.exe
Download: download sample
Signature MysticStealer
Create hunting rule
File size:285'696 bytes
First seen:2023-10-05 08:59:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7bf0c3cbf0d3960e40b75bc830477f17 (6 x Stealc, 5 x Smoke Loader, 3 x Tofsee)
ssdeep 6144:rm5wru/agAjTG9K6fu/cMlDlD8KiFcU4LaHxuY:rTr8agAj/6fwlDla4UuY
Threatray 6 similar samples on MalwareBazaar
TLSH T18F54E02079F2D8B1D6B356794838EB857BFF78726474858F27684A6E5E603C18E63303
TrID 38.6% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
29.0% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 1012062230904000 (1 x MysticStealer)
Reporter abuse_ch
Tags:exe MysticStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed redcap
Link:
https://www.filescan.io/uploads/651e7b17a31588d184f1d724/reports/bbb145f0-e4b5-4c33-8bcc-8c2c0da6a0ec/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22
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:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9371cb3d-9508-4c6c-9fbb-d911148bd24a
Result
Threat name:
Mystic Stealer, onlyLogger
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1320049
Signature
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Mystic Stealer
Yara detected onlyLogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1320049 Sample: 42EGX0ch2x.exe Startdate: 05/10/2023 Architecture: WINDOWS Score: 100 47 script.googleusercontent.com 2->47 49 script.google.com 2->49 51 2 other IPs or domains 2->51 61 Multi AV Scanner detection for domain / URL 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for URL or domain 2->65 67 6 other signatures 2->67 9 42EGX0ch2x.exe 21 2->9         started        signatures3 process4 dnsIp5 53 5.42.64.10, 49686, 49687, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 9->53 55 googlehosted.l.googleusercontent.com 142.250.176.1, 443, 49691 GOOGLEUS United States 9->55 57 script.google.com 142.250.217.142, 443, 49688, 49690 GOOGLEUS United States 9->57 39 C:\Users\user\AppData\...\1546969050.exe, PE32 9->39 dropped 41 C:\Users\user\AppData\...\0563555496.exe, PE32 9->41 dropped 43 C:\Users\user\AppData\Local\...\s61[1], PE32 9->43 dropped 45 3 other malicious files 9->45 dropped 13 cmd.exe 1 9->13         started        15 cmd.exe 1 9->15         started        17 cmd.exe 1 9->17         started        19 WerFault.exe 21 16 9->19         started        file6 process7 process8 21 1546969050.exe 3 13->21         started        24 conhost.exe 13->24         started        26 0563555496.exe 15->26         started        29 conhost.exe 15->29         started        31 taskkill.exe 1 17->31         started        33 conhost.exe 17->33         started        dnsIp9 69 Multi AV Scanner detection for dropped file 21->69 71 Writes to foreign memory regions 21->71 73 Injects a PE file into a foreign processes 21->73 35 AppLaunch.exe 1 21->35         started        37 AppLaunch.exe 21->37         started        59 mediasitenews.com 194.87.32.213, 443, 49689 BANDWIDTH-ASGB Russian Federation 26->59 75 Machine Learning detection for dropped file 26->75 signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22/
Threat name:
Win32.Backdoor.Tofsee
Create hunting rule
Status:
Malicious
First seen:
2023-10-04 17:48:15 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wkgu2rixlveuryrzh3nxe2iydppiz5bwegun3k7bgnnmc4lfnyra._file
Verdict:
malicious
Similar samples:
6f0274a0e17ea613a840cd89a838151a3bbf145dbbedccbff9efc7ab762b82e1
MysticStealer
981923aeeddd4c6f2b68c6b1c0e80f6b4ca6495e200562f371215e37cb7885ac
MysticStealer
d64061edbb7be2e6c37f10774b44fbbd137ea7bc2410bf0dd79b1ba970e0b948
MysticStealer
e5e5abe00e82ad616e13abd1768769dc8d31b4e1a5b79955219cea34c395e9df
MysticStealer
fe83636233da5eeb406ddcd43a4beb5ed9629797073fba5415c2b4450aad0647
MysticStealer
Result
Malware family:
mystic
Create hunting rule
Score:
  10/10
Tags:
family:mystic stealer
Link:
https://tria.ge/reports/231005-kybhcshh5v/
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Detect Mystic stealer payload
Mystic
Unpacked files
SH256 hash:
6711983a2b83509f3d8711d64f0c6f7a7bdbe82fcb66c3f58611132bb03d0b62
MD5 hash:
2b01e6d9f123445932a8245b050aa045
SHA1 hash:
8362142bba41f20d84a3effe24e9325514265f07
Link:
https://www.unpac.me/results/ac07d3d0-6467-4969-ac60-aad0e8ae03fb/
SH256 hash:
b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22
MD5 hash:
bebef81ac2e0a1d0d1a9a77dc0aae50f
SHA1 hash:
02b915955306848cd811e6d038b4af6921f83969
Link:
https://www.unpac.me/results/ac07d3d0-6467-4969-ac60-aad0e8ae03fb/
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/b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

MysticStealer

Executable exe b28d4d45175d4948e2393edb7269181bde8cf43621a8ddabe1335ac171656e22

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2716274/
  
Delivery method
Distributed via web download

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