MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990. 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


NosuStealer


Vendor detections: 11


Intelligence 11 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990
SHA3-384 hash: 72d5083e785e316b35da9efebc83e82f1de633452cd302c602047da28d16301f1e30e5db33b7f88f6358eeb69a49ea3e
SHA1 hash: e6346412bee06c14fc001777c6bfba53c31692fe
MD5 hash: 5d3c7906f0a8b34e0c220f1d3bd4a439
humanhash: vegan-jig-uranus-bravo
File name:5d3c7906f0a8b34e0c220f1d3bd4a439
Download: download sample
Signature NosuStealer
Create hunting rule
File size:752'128 bytes
First seen:2023-03-29 09:31:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 97097c6816d59e0e343951d5da613aa6 (10 x NosuStealer)
ssdeep 12288:zPDiJJG05qrVujzjkv45nG2JoGhkgGt4z93qCb4jyKrxo6EbpYx0:rmb3GVsfkv4I2Wi0t4Z4jPG6Eb
TLSH T11AF49F22F2E18437F1322A789D1B927CDD267E106935E8463FE59E8D5F38681372B193
TrID 68.5% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
27.0% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
1.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
1.3% (.SCR) Windows screen saver (13097/50/3)
0.4% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 399998ecd4d46c0e (572 x Quakbot, 137 x ArkeiStealer, 82 x GCleaner)
Reporter zbetcheckin
Tags:32 exe NosuStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
258
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5d3c7906f0a8b34e0c220f1d3bd4a439
Verdict:
No threats detected
Analysis date:
2023-03-29 09:32:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c6f1ead1-1d71-45a4-8129-df04ff024443

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/378456/
Detection(s):
SecuriteInfo.com.HEUR.19278.20867.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/75593/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger qbot shell32.dll zusy
Link:
https://www.filescan.io/uploads/642405940dc8b8a71cf77355/reports/126251cc-2046-4c54-9951-0fac47fae20b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a82f467a-e489-42bc-a1ed-bda64a423fb1
Result
Threat name:
CryptOne
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1204162
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found stalling execution ending in API Sleep call
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected CryptOne packer
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2023-03-29 09:32:09 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd57tmpqbemaafd3kw2iton4naaxj2c5netsyswogcsdlldqhgia._file
Result
Malware family:
nosu
Create hunting rule
Score:
  10/10
Tags:
family:nosu stealer
Link:
https://tria.ge/reports/230329-lhl5laff95/
Behaviour
Nosu
Unpacked files
SH256 hash:
ea7f4ec0694b25f0a557aa989d4a0149ec8a24a1c4d0d1722f57c45794c6ade7
MD5 hash:
d99601b6b31f8898960e624b44babd88
SHA1 hash:
fab239f1005c092ab2c7b296f9476038717b16c0
Detections:
win_nosu_w0
Create hunting rule
win_nosu_auto
Create hunting rule
Link:
https://www.unpac.me/results/e11ef515-12db-4388-ba36-ef6ec66a7d50/
Parent samples :
921d7597e758714e5e206a1333a50553d7e626033c9380d2198a6c4d697ffb81
29e91d7b2fd3c332ab75cfd3a4bb78157de2f91d423d1e102ec67bc7c40e2525
145732bef3d13fbed8066c2ec585f74eb98865d045f3d0c292d07e1bc40e3552
b9a058d6f22c4c588d10e176ef8b7211423fb4d44d7a8ed6b071eadbc05dc87d
b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990
7a70ab7f2f11a71d0976ebb46311da4409fb1ec16e9d0c544d89a7a383f3035e
a7583ffef57b30690f06923de93b2769038639910ac1324160fc50264491edc3
e86e3725ee0713bcc856d22fdfab010a364681785b8b38bec4aae4078ccf0f17
cf3416fdf617c6fb728acb0a89ec93d4aff5674f6aa0b66ec3629dda2f8f1cbd
SH256 hash:
b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990
MD5 hash:
5d3c7906f0a8b34e0c220f1d3bd4a439
SHA1 hash:
e6346412bee06c14fc001777c6bfba53c31692fe
Link:
https://www.unpac.me/results/e11ef515-12db-4388-ba36-ef6ec66a7d50/
Malware family:
CryptOne
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8fbf9b1f009/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/b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990

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:win_nosu_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.nosu.
Rule name:win_nosu_w0
Create hunting rule
Author:@malgamy12
Description:Detect_Nosu_stealer

File information

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

Web download

NosuStealer

Executable exe b8fbf9b1f0091800147b55b489b9bc680174e85d69272c4ace30a435ac703990

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/378456/

Comments


Avatar
zbet commented on 2023-03-29 09:31:49 UTC

url : hxxp://188.166.1.195:8080/ss.exe