MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f
SHA3-384 hash: 5afafd29e56813a790c300cc14941b0fffdc7c9626aab2d070cb64dbe48912a2832d616b8a15461d8faf89cb4173282f
SHA1 hash: 6f4c0be5e078c7baafd45bc0f7b34369186f8326
MD5 hash: 0ce3e023d7579d4728ea5987af8cf958
humanhash: monkey-london-charlie-bravo
File name:998D503AA5E68830D7F981490108D44DC12F331BD5AD9EA9F207A99E6D06AFBB.exe
Download: download sample
Signature Worm.Ramnit
Create hunting rule
File size:252'928 bytes
First seen:2024-07-24 19:27:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a945bbba5e19a9f29aa1458bdc91ed8a (6 x Smoke Loader, 6 x SystemBC, 5 x Worm.Ramnit)
ssdeep 3072:Y//RakHeb+Jfk774EI2UdMStWld84F5bO3Fb8AgHGCH:a5ax+KP4EI2UdMKWldTjO3Fb8y
Threatray 681 similar samples on MalwareBazaar
TLSH T13134E0323AD0C072C89B55327865CAB15FAE9431B3A2584B37AD177E6F303D157BA34A
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):PE icon
dhash icon 5c59da3ce0c1c850 (36 x Stop, 33 x Smoke Loader, 26 x RedLineStealer)
Reporter Anonymous
Tags:exe Worm.Ramnit


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
319
Origin country :
CN CN
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.Asprotect-3
Create hunting rule

Win.Virus.Wapomi-9802127-0
Create hunting rule

Win.Trojan.Generic-9942495-0
Create hunting rule

Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Win.Malware.Wapomi-10020301-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a155c5ae21d7902eafbe02
Tags:
Execution Generic Network Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Modifying an executable file
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending an HTTP POST request
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/66a156443ba51bb345a365a1/reports/088ecd5b-ccd8-482c-b63d-460a90cfa495/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f71a4960-93b0-4323-84ae-aede0f66b2f9
Result
Threat name:
Bdaejec, SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1480640
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)
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)
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
PE file contains section with special chars
PE file has a writeable .text section
Switches to a custom stack to bypass stack traces
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)
Uses known network protocols on non-standard ports
Yara detected Bdaejec
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1480640 Sample: 998D503AA5E68830D7F98149010... Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 44 coralee.at 2->44 46 ddos.dnsnb8.net 2->46 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 74 11 other signatures 2->74 9 998D503AA5E68830D7F981490108D44DC12F331BD5AD9EA9F207A99E6D06AFBB.exe 1 2->9         started        13 ichditv 2->13         started        signatures3 process4 file5 42 C:\Users\user\AppData\Local\Temp\oZoSOC.exe, PE32 9->42 dropped 76 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->76 78 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 9->78 80 Maps a DLL or memory area into another process 9->80 88 3 other signatures 9->88 15 oZoSOC.exe 14 9->15         started        20 explorer.exe 38 3 9->20 injected 82 Antivirus detection for dropped file 13->82 84 Detected unpacking (changes PE section rights) 13->84 86 Machine Learning detection for dropped file 13->86 22 oZoSOC.exe 1 25 13->22         started        signatures6 process7 dnsIp8 48 ddos.dnsnb8.net 44.221.84.105, 49706, 49707, 49716 AMAZON-AESUS United States 15->48 32 C:\Program Files\7-Zip\Uninstall.exe, PE32 15->32 dropped 34 C:\Program Files (x86)\AutoIt3\...\SciTE.exe, PE32 15->34 dropped 36 C:\Program Files (x86)\AutoIt3\...\MyProg.exe, MS-DOS 15->36 dropped 52 Antivirus detection for dropped file 15->52 54 Detected unpacking (changes PE section rights) 15->54 56 Machine Learning detection for dropped file 15->56 58 Infects executable files (exe, dll, sys, html) 15->58 24 WerFault.exe 19 16 15->24         started        50 coralee.at 188.40.141.211, 49715, 80 HETZNER-ASDE Germany 20->50 38 C:\Users\user\AppData\Roaming\ichditv, PE32 20->38 dropped 40 C:\Users\user\...\ichditv:Zone.Identifier, ASCII 20->40 dropped 60 System process connects to network (likely due to code injection or exploit) 20->60 62 Benign windows process drops PE files 20->62 64 Deletes itself after installation 20->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->66 26 cmd.exe 1 22->26         started        file9 signatures10 process11 process12 28 conhost.exe 24->28         started        30 conhost.exe 26->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f/
Threat name:
Win32.Virus.Wapomi
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 19:28:12 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2m3gknpxrwspusyt2e2cmcrhzlmxumghwlpckodrladxxiu3hfhq._file
Verdict:
malicious
Similar samples:
6acc0714d3cbab8c42b03d03044f0c56134ed9a651bd1f7a88d8c8f56c978f6a
Worm.Ramnit
b12d171c3a13bd3e9ded2a8c6c6c3a9303610df03ba52fa274f7f75a04b66efa
Worm.Ramnit
bc9d49f4f0d51c57b34515616d5e6a23a37fec03f8884d8305db0806bd6138fc
Worm.Ramnit
d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f
Worm.Ramnit
e77eb0d03b445cf74f20c2614b1135b62da61ecf0d7c48194b71b8f73297272d
Worm.Ramnit
fb9b41efdc7c2d9e8cfda4be223831a9d2f4d21366759da64e04bbbb9e662766
Worm.Ramnit
+ 671 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub2 aspackv2 backdoor discovery trojan
Link:
https://tria.ge/reports/240724-x6m8catamn/
Behaviour
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
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/f9d0c326-0f4f-46da-b2f2-1572857fde30
Unpacked files
SH256 hash:
62ca52b62339a8f96855c150d8d9cb0aca0ba998200111e8a44aaf399c3fdcab
MD5 hash:
d51a93b9ad236dc9b151c9f02fdbb646
SHA1 hash:
8865942793663d04bc55246c158cc5d96e8efdb8
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/79fcd473-8456-4e00-9ec0-a4d772cdfbdd/
Parent samples :
d372df2f0b72e4bde91c57cb6c5cdd6f39486c68cb5cd26fa3aaf6a403bc0b66
b12d171c3a13bd3e9ded2a8c6c6c3a9303610df03ba52fa274f7f75a04b66efa
d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f
35d7e3bb4439ad5252c87cbe81d7626aa72accd719ff4af346964b74ac34a689
16267071c251784aeebe5d562dfd58bfbc0a0767a85ebc5863025bc74a69d339
SH256 hash:
77fb42dd992dee195906e598c611609f1c835ff7b19c12e9daa86949477bc869
MD5 hash:
dee7fa554bf7d5fc77a077494e74afe7
SHA1 hash:
06357dccfe9cef45d5836c7e08e86ef50408419f
Detections:
win_unidentified_045_auto
Create hunting rule
win_unidentified_045_g0
Create hunting rule
Link:
https://www.unpac.me/results/79fcd473-8456-4e00-9ec0-a4d772cdfbdd/
SH256 hash:
d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f
MD5 hash:
0ce3e023d7579d4728ea5987af8cf958
SHA1 hash:
6f4c0be5e078c7baafd45bc0f7b34369186f8326
Link:
https://www.unpac.me/results/79fcd473-8456-4e00-9ec0-a4d772cdfbdd/
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/d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f

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

Executable exe d3366535f78da4fa4b13d134260a27cad97a30c7b2de25387158077ba29b394f

(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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleWindowInfo
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleTitleA
KERNEL32.dll::GetConsoleAliasesLengthW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::MoveFileW
KERNEL32.dll::ReplaceFileA

Comments