MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766. 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

Worm.Ramnit

Vendor detections: 16

Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash:	fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766
SHA3-384 hash:	9ddcd18011ee8248ac126cbe7a77c7fefb964c3b268c2c411d5b96dfaa5ed550582a1e0c4cb853420e70221d1774a17d
SHA1 hash:	fd4538bf1904c4fcd1b9248153ec592361b9bbf6
MD5 hash:	e9ec32c2535a6b458d78292711cd0308
humanhash:	texas-utah-south-whiskey
File name:	170B781D322D51B572EB6CCF8598281A5E3C9828FF2750184BF6C841A9DEC2D3.exe
Download:	download sample
Signature	Worm.Ramnit Create hunting rule
File size:	253'440 bytes
First seen:	2024-07-24 11:36:59 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	a945bbba5e19a9f29aa1458bdc91ed8a (6 x Smoke Loader, 6 x SystemBC, 5 x Worm.Ramnit)
ssdeep	3072:luOIO/H/M6PQYnNSlu5bpUUtWlYvHGCH:gPOc6lnNSlIOUtmYe
TLSH	T1CB44E12236D3D072CC8F953174A1CBA16EAE883253A5584B77A90B7E2F603C15B7A357
TrID	37.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 20.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 12.7% (.EXE) Win64 Executable (generic) (10523/12/4) 7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	5c59da3ce0c1c850 (36 x Stop, 33 x Smoke Loader, 26 x RedLineStealer)
Reporter	Anonymous
Tags:	exe Worm.Ramnit

Anonymous

this malware sample is very nasty!

Intelligence

File Origin

# of uploads :

# of downloads :

331

Origin country :

Vendor Threat Intelligence

Detection(s):

PUA.Win.Packer.Asprotect-3

Win.Virus.Wapomi-9802127-0

Win.Trojan.Generic-9942495-0

Win.Packer.pkr_ce1a-9980177-0

Win.Malware.Wapomi-10020301-0

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66a0e761a97e13ad9de7ab36

Tags:

Execution Generic Network Static Stealth

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a file in the %temp% directory

Creating a process from a recently created file

Changing an executable file

Creating a window

Connection attempt to an infection source

Sending an HTTP GET request to an infection source

Unauthorized injection to a recently created process

Restart of the analyzed sample

Modifying an executable file

Сreating synchronization primitives

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Query of malicious DNS domain

Infecting executable files

Unauthorized injection to a system process

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint lolbin microsoft_visual_cc shell32

Link:

https://www.filescan.io/uploads/66a0e761dfa8b2fced4df6ef/reports/b1ab29fc-d28d-4761-adaf-a0ad314ce498/overview

Verdict:

Malicious

Labled as:

Wapomi.BA virus

Link:

https://www.hybrid-analysis.com/sample/fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766

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:

Generic Malware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/541b7910-be93-4c3d-bf26-21374f094145

Result

Threat name:

Bdaejec, SmokeLoader

Detection:

malicious

Classification:

spre.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1479982

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

Benign windows process drops PE files

C2 URLs / IPs found in malware configuration

Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))

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

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)

Found malware configuration

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

Infects executable files (exe, dll, sys, html)

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)

Maps a DLL or memory area into another process

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

PE file contains section with special chars

PE file has a writeable .text section

Switches to a custom stack to bypass stack traces

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

Uses known network protocols on non-standard ports

Yara detected Bdaejec

Yara detected SmokeLoader

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766

Detection:

smokeloader

Link:

https://mwdb.cert.pl/sample/fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766/

Threat name:

Win32.Virus.Wapomi

Status:

Malicious

First seen:

2024-07-24 11:37:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=7onud364pqwz5dh5us7ceobrvhjpjuqtmz2z3jsoas53xhtge5ta._file

Verdict:

malicious

Result

Malware family:

smokeloader

Score:

10/10

Tags:

family:smokeloader botnet:pub3 aspackv2 backdoor discovery trojan

Link:

https://tria.ge/reports/240724-nq5ysaxdnd/

Behaviour

Checks SCSI registry key(s)

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Suspicious use of SetThreadContext

ASPack v2.12-2.42

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

SmokeLoader

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/8dc6a1fa-2580-4a4b-ae1b-0da14b65bff1

Unpacked files

SH256 hash:

721d393191597d49d856baef2fbde75e48f52d0465e2cfabf1a41848b0e05589

MD5 hash:

b984a027c8a2abf874f3eb306a831613

SHA1 hash:

d3b3f8890adc840b0bd411cf304eef15d415ed48

Detections:

SmokeLoaderStage2

win_smokeloader_a2

Link:

https://www.unpac.me/results/0ec6adb1-643b-4e19-8e22-940408860090/

Parent samples :
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SH256 hash:

23c9474db7349abb67aed3b1f559736c199b9b994abd383fffeffa6646267593

MD5 hash:

21e5a53f65e0a8e58fe1c98ed4aa8043

SHA1 hash:

a5a39d07396d50d89f2a687006bb99c2b4cbbb1a

Detections:

win_unidentified_045_auto

win_unidentified_045_g0

Link:

https://www.unpac.me/results/0ec6adb1-643b-4e19-8e22-940408860090/

SH256 hash:

fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766

MD5 hash:

e9ec32c2535a6b458d78292711cd0308

SHA1 hash:

fd4538bf1904c4fcd1b9248153ec592361b9bbf6

Link:

https://www.unpac.me/results/0ec6adb1-643b-4e19-8e22-940408860090/

Please note that we are no longer able to provide a coverage score for Virus Total.

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:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

File information

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

Malspam

Worm.Ramnit

exe fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766

(this sample)

Link

https://bbs.kafan.cn/forum-31-1.html

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoA KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::WriteConsoleA KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleWindowInfo KERNEL32.dll::GetConsoleAliasesA KERNEL32.dll::GetConsoleTitleA KERNEL32.dll::GetConsoleAliasesLengthW
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateDirectoryA KERNEL32.dll::MoveFileW KERNEL32.dll::ReplaceFileA

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