MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836. 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


UmbralStealer


Vendor detections: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836
SHA3-384 hash: dd9dfccc378c3d4cbe0d75a1e472b1e313512c7e2aba1073e3db4da30a8e1fbe7f8aa696af82a2e32e0eed7bd7b48cf6
SHA1 hash: 8b17616ef83dbff1ee43909c3fc7fdecc22e94d5
MD5 hash: 9ece2e51e89b1dc153e98113371fa766
humanhash: romeo-india-alpha-colorado
File name:Umbral.exe
Download: download sample
Signature UmbralStealer
Create hunting rule
File size:219'648 bytes
First seen:2023-05-13 22:58:14 UTC
Last seen:2023-05-14 18:42:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:OlP/chtWkOIGS4vD6vdnsUSa5Gli568fjw44lllllj02cgSl8eN7bRrXQnXT5X3:WcyHIGSdsUS0X6Yjb8eNHRcD
Threatray 3 similar samples on MalwareBazaar
TLSH T1D9246C1827BCCB12E26F8FBD95F1419B8B70E107E84EFB8E5C88D5F81422742B549A57
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter JaffaCakes118
Tags:UmbralStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Umbral.exe
Verdict:
No threats detected
Analysis date:
2023-05-13 23:18:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/925f4f05-15f4-4b94-8a92-29239f27adcf

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/389254/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.27419.25525.13684.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Using the Windows Management Instrumentation requests
Creating a file
Creating a window
Creating a file in the %temp% subdirectories
Sending an HTTP GET request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm cmd.exe fingerprint hacktool packed rat wmic.exe
Link:
https://www.filescan.io/uploads/6460163efe2f8f2723bae366/reports/f274cdaa-c6ab-4af0-9601-c4e651427b83/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/586cf094-65cc-4cf9-adbc-97385ac9dbcd
Result
Threat name:
Umbral Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1232320
Signature
Adds a directory exclusion to Windows Defender
Drops PE files to the startup folder
Drops PE files with a suspicious file extension
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Umbral Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 865302 Sample: Umbral.exe Startdate: 14/05/2023 Architecture: WINDOWS Score: 96 27 Malicious sample detected (through community Yara rule) 2->27 29 Multi AV Scanner detection for dropped file 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 3 other signatures 2->33 7 Umbral.exe 14 5 2->7         started        process3 file4 23 C:\ProgramData\Microsoft\...\CofPz.scr, PE32 7->23 dropped 25 C:\ProgramData\...\CofPz.scr:Zone.Identifier, ASCII 7->25 dropped 35 Drops PE files with a suspicious file extension 7->35 37 Drops PE files to the startup folder 7->37 39 Tries to harvest and steal browser information (history, passwords, etc) 7->39 41 Adds a directory exclusion to Windows Defender 7->41 11 powershell.exe 19 7->11         started        13 powershell.exe 12 7->13         started        15 powershell.exe 7 7->15         started        signatures5 process6 process7 17 conhost.exe 11->17         started        19 conhost.exe 13->19         started        21 conhost.exe 15->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2023-05-13 22:59:12 UTC
File Type:
PE (.Net Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tbdssoqiqtyq2be22dynzvo5bfrf5bpp7zpqb4z2wqwatprrha3a._file
Verdict:
malicious
Similar samples:
6dd21975f4cab86ed7af322c38e9825971e13cc0b826e278f56d2e411ad4f6f8
UmbralStealer
7e9fc9546b1c8892e6ddb754bdea3a38a892c186c8f6969e2780d3edfac6eb46
UmbralStealer
dc1fac12b351fb002bdb989e60717c36e2bd50c6c96b449fbffeb347c47622a5
UmbralStealer
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230513-2x1vashh54/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836
MD5 hash:
9ece2e51e89b1dc153e98113371fa766
SHA1 hash:
8b17616ef83dbff1ee43909c3fc7fdecc22e94d5
Link:
https://www.unpac.me/results/11ab2cd2-b387-496f-8023-2667dae3cac4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9847293a0884/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
Link:
https://yomi.yoroi.company/submissions/9847293a0884f10d049ad0f0dcd5dd09625e85effe5f00f33ab42c09be313836

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/389254/

Comments