MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 feb12de92aa1536ba75f69b41bf74cc3bd8438df7eb0f0705ebbd1de73994624. 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


CoinMiner


Vendor detections: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: feb12de92aa1536ba75f69b41bf74cc3bd8438df7eb0f0705ebbd1de73994624
SHA3-384 hash: b1ce9e449625aa6c9c576515c3c10309a9ad7e33de081558edd730767196fa3a2cc41a84e9cceb5ecaad829aa4361312
SHA1 hash: b687c92c8aa824214a99e9d0631680f7ef804c32
MD5 hash: 2fc2f7d38817146ee4efd87e46d335d6
humanhash: east-fish-mockingbird-illinois
File name:OfficeBackup.exe
Download: download sample
Signature CoinMiner
Create hunting rule
File size:2'379'776 bytes
First seen:2021-05-17 11:15:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 49152:z3HE2//RRn6yJ3PVbzk0Q0wbYrpEcotWCyOlsDyGB:z3Hr//6yJ3NbEvsboTlsDyO
Threatray 53 similar samples on MalwareBazaar
TLSH 9DB5334B3A928620E9AE09B5D1E7403947B3AB231277D3903D0995EE5F663D1CF4B3C6
Reporter 0x746f6d6669
Tags:CoinMiner

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OfficeBackup.exe
Verdict:
No threats detected
Analysis date:
2021-05-17 11:17:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6ba962d7-82b3-4a82-9928-49e467e3b215

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/157835/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Using the Windows Management Instrumentation requests
Sending a UDP request
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.
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/783441
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to a pastebin service (likely for C&C)
Drops PE files to the user root directory
Drops PE files with benign system names
Found strings related to Crypto-Mining
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)
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
Query firmware table information (likely to detect VMs)
Sample is not signed and drops a device driver
Sigma detected: Schedule system process
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 415837 Sample: OfficeBackup.exe Startdate: 17/05/2021 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Antivirus / Scanner detection for submitted sample 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 8 other signatures 2->68 8 OfficeBackup.exe 8 2->8         started        process3 file4 50 C:\Users\user\smss.exe, PE32+ 8->50 dropped 52 C:\Users\user\smss.exe:Zone.Identifier, ASCII 8->52 dropped 54 C:\Users\user\...\OfficeBackup.exe.log, ASCII 8->54 dropped 76 Drops PE files to the user root directory 8->76 78 Adds a directory exclusion to Windows Defender 8->78 80 Sample is not signed and drops a device driver 8->80 82 Drops PE files with benign system names 8->82 12 smss.exe 4 8->12         started        16 cmd.exe 1 8->16         started        18 cmd.exe 1 8->18         started        signatures5 process6 file7 56 C:\Users\user\AppData\Roaming\...\WR64.sys, PE32+ 12->56 dropped 84 Antivirus detection for dropped file 12->84 86 Multi AV Scanner detection for dropped file 12->86 88 Machine Learning detection for dropped file 12->88 94 3 other signatures 12->94 20 svchost.exe 12->20         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        90 Uses schtasks.exe or at.exe to add and modify task schedules 16->90 92 Adds a directory exclusion to Windows Defender 16->92 28 powershell.exe 22 16->28         started        30 powershell.exe 23 16->30         started        32 conhost.exe 16->32         started        38 2 other processes 16->38 34 conhost.exe 18->34         started        36 schtasks.exe 1 18->36         started        signatures8 process9 dnsIp10 58 worldexpressdelivery.art 45.147.231.35, 49729, 49736, 49737 COMBAHTONcombahtonGmbHDE Germany 20->58 60 pastebin.com 104.23.98.190, 443, 49728 CLOUDFLARENETUS United States 20->60 70 System process connects to network (likely due to code injection or exploit) 20->70 72 Query firmware table information (likely to detect VMs) 20->72 74 Adds a directory exclusion to Windows Defender 24->74 40 conhost.exe 24->40         started        42 powershell.exe 24->42         started        44 powershell.exe 24->44         started        46 conhost.exe 26->46         started        48 schtasks.exe 26->48         started        signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/feb12de92aa1536ba75f69b41bf74cc3bd8438df7eb0f0705ebbd1de73994624/
Threat name:
ByteCode-MSIL.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-05-17 00:39:59 UTC
AV detection:
18 of 47 (38.30%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
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a465bb35f4e7bafb2fea17156c39daee286e49c3f10463ecb8d29766e2d0b200
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cd91b0fbaabf19d178f3a221c517418378913af82ca88856a07cbf0df506f117
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d2d9b66c9aad0e6cc20a786a89299a8b4a65a5a344db369dfd7bfbad3fb40b55
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e7d6efa5783c7c9a417518ee96f0ddbb919ab711669cbf68ef6caa27dac966d5
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CoinMiner
+ 43 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig miner
Link:
https://tria.ge/reports/210517-4g317v3jv6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Executes dropped EXE
XMRig Miner Payload
xmrig
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/feb12de92aa1536ba75f69b41bf74cc3bd8438df7eb0f0705ebbd1de73994624

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/157835/

Comments