MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ac981477f6371b6a6f83a33da8e7875e4451c0c7e41d5090b0742a133470152. 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

Smoke Loader

Vendor detections: 12

Intelligence 12 IOCs YARA File information Comments 1

SHA256 hash:	3ac981477f6371b6a6f83a33da8e7875e4451c0c7e41d5090b0742a133470152
SHA3-384 hash:	dc41d8958dc1ce997bc9a73ebe3d42567b4a9b22352dd5210800df0cf616d56650cd37c0879b0c399d220a866db94f03
SHA1 hash:	3adba2d32140f399d226bfd19a29fe59d47b6066
MD5 hash:	26b1bbf8a2a28c04f8c8861a4cae383c
humanhash:	video-autumn-gee-six
File name:	26b1bbf8a2a28c04f8c8861a4cae383c
Download:	download sample
Signature	Smoke Loader Create hunting rule
File size:	305'664 bytes
First seen:	2022-01-05 11:26:11 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	62bfdc2e0e8d6afb3b408569163b2244 (3 x Smoke Loader, 2 x RedLineStealer)
ssdeep	3072:AdOOk7oTtMoIiL7cgcZeNlWrxpzbgqruPhsJVggjcGkNIVqIl/fpHo:A/gaf1L4heNluzbgwuyr7ITsqoxH
Threatray	6'471 similar samples on MalwareBazaar
TLSH	T1F6548DF136A8D832E5936A3094608A91ED3BF852D520514A773837AE1F33EDC97E531E
File icon (PE):
dhash icon	a1bcdcac9c8cb4a4 (6 x RedLineStealer, 4 x DanaBot, 3 x Smoke Loader)
Reporter	zbetcheckin
Tags:	32 exe Smoke Loader

Intelligence

File Origin

# of uploads :

# of downloads :

207

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

26b1bbf8a2a28c04f8c8861a4cae383c

Verdict:

Suspicious activity

Analysis date:

2022-01-05 11:32:46 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/c641c3d7-d48c-4ec8-a6be-c3d39ce880da

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/217428/

Detection(s):

Win.Dropper.Tofsee-9919472-0

Win.Dropper.Lockbit-9919572-0

Win.Malware.Stopcrypt-9933337-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Unauthorized injection to a recently created process

DNS request

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Query of malicious DNS domain

Enabling autorun by creating a file

Sending an HTTP POST request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware tofsee

Link:

https://www.filescan.io/uploads/61d58089bfe53d318f27787c/reports/aa7050b2-0736-4c2f-b801-f4cd26998090/overview

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.

Malware family:

Generic Malware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4a9fd1bf-1d08-455a-84c7-aab92539d985

Result

Threat name:

RedLine SmokeLoader Tofsee Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/915780

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code references suspicious native API functions

Allocates memory in foreign processes

Antivirus detection for dropped file

Antivirus detection for URL or domain

Benign windows process drops PE files

Changes security center settings (notifications, updates, antivirus, firewall)

Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))

Checks if the current machine is a virtual machine (disk enumeration)

Contains functionality to detect sleep reduction / modifications

Contains functionality to inject code into remote processes

Creates a thread in another existing process (thread injection)

Deletes itself after installation

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Drops executables to the windows directory (C:\Windows) and starts them

Found many strings related to Crypto-Wallets (likely being stolen)

Hides that the sample has been downloaded from the Internet (zone.identifier)

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Maps a DLL or memory area into another process

Modifies the windows firewall

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses process hollowing technique

Sigma detected: Copying Sensitive Files with Credential Data

Sigma detected: Suspect Svchost Activity

Sigma detected: Suspicious Svchost Process

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

System process connects to network (likely due to code injection or exploit)

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Crypto Currency Wallets

Uses netsh to modify the Windows network and firewall settings

Writes to foreign memory regions

Yara detected RedLine Stealer

Yara detected SmokeLoader

Yara detected Tofsee

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3ac981477f6371b6a6f83a33da8e7875e4451c0c7e41d5090b0742a133470152/

Threat name:

Win32.Trojan.Raccrypt

Status:

Malicious

First seen:

2022-01-05 11:27:09 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

26 of 28 (92.86%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hleycr37mny3njxyhiz5vdtyoxsekhampza5kcila5bkcm2hafja._file

Verdict:

malicious

Smoke Loader

29a5461cca77683d6a47c83eb774235bd0ae092adc58c987e571eeecb3e1cd03

Smoke Loader

4f9f2d3789809c1f34877a5cd109aabeccea14c1cfe423ea271cc7cd0178b23a

Smoke Loader

8bbdda1786e15a568a573a2f38762e95de138af969e0a13b96d7086aaa98bfc2

Smoke Loader

8cedc3fb74185394bbf60d2dc1f9618b1e576986f13031b9e29ef12daa6eaf2c

Smoke Loader

eb24b3b9375f0b3272fac6eecc9329f79eab274d802b2ad37037cc83a46fa3f1

Smoke Loader

+ 6'461 additional samples on MalwareBazaar

Result

Malware family:

xmrig

Score:

10/10

Tags:

family:arkei family:raccoon family:smokeloader family:tofsee family:xmrig botnet:10da56e7e71e97bdc1f36eb76813bbc3231de7e4 backdoor collection discovery evasion miner persistence spyware stealer suricata trojan

Link:

https://tria.ge/reports/220105-nkeveaaefr/

Behaviour

Checks SCSI registry key(s)

Checks processor information in registry

Delays execution with timeout.exe

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Enumerates physical storage devices

Program crash

Launches sc.exe

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks whether UAC is enabled

Checks BIOS information in registry

Deletes itself

Loads dropped DLL

Reads user/profile data of web browsers

Creates new service(s)

Downloads MZ/PE file

Executes dropped EXE

Modifies Windows Firewall

Sets service image path in registry

Arkei Stealer Payload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

XMRig Miner Payload

Arkei

Raccoon

SmokeLoader

Suspicious use of NtCreateProcessExOtherParentProcess

Tofsee

Windows security bypass

suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

xmrig

Malware Config

C2 Extraction:

http://host-data-coin-11.com/
http://file-coin-host-12.com/
http://srtuiyhuali.at/
http://fufuiloirtu.com/
http://amogohuigotuli.at/
http://novohudosovu.com/
http://brutuilionust.com/
http://bubushkalioua.com/
http://dumuilistrati.at/
http://verboliatsiaeeees.com/
patmushta.info
parubey.info