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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6. 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


Lazarus


Vendor detections: 9


Intelligence 9 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6
SHA3-384 hash: b2882b6b2c24936cba0b30dc442de8564e58f31a063e6338f238e8c018ece4f042fa0ea6a73b507c2e81b9b64bd24b72
SHA1 hash: df2f4d8311840488facab07a3ce54cfb86a84041
MD5 hash: bfc91f029550ae117028621869d5c1da
humanhash: burger-oxygen-earth-oklahoma
File name:libmupdf.dll
Download: download sample
Signature Lazarus
Create hunting rule
File size:11'413'504 bytes
First seen:2025-11-21 22:52:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e1833d8c9cab446ba71f57dbfec6896d (1 x Lazarus)
ssdeep 196608:KS7jl1N8wCA7muMROBLg8hgpNZQy0GvJ4Z08RBCxXB7q3oWqCiCBXBv:Pjl1N8wCA7muMROBcDp7Qy0Z08RBCxXW
TLSH T1B3B67B9271955EB8D252FB3CD94242AFF21DFC085B9143C7829A6D702E723D91839FB2
TrID 39.8% (.EXE) DOS Executable BASCOM (generic) (21003/2/6)
19.9% (.EXE) Win64 Executable (generic) (10522/11/4)
10.5% (.FON) Windows Font (5545/9/1)
9.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.5% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter smica83
Tags:apt exe Lazarus

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
libmupdf.dll
Verdict:
No threats detected
Analysis date:
2025-11-21 22:56:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/aa9a9341-675a-4113-956d-56f358339c2a

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/38992/
Verdict:
Clean
Score:
89.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6920ed2c4917b5d23db035b6
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint masquerade microsoft_visual_cc nukesped packed
Link:
https://www.filescan.io/uploads/6920ed26f96b58f0dc7f946f/reports/929363fb-f9ac-409b-ae49-ce28184cc98e/overview
Verdict:
Malicious
Labled as:
Win64/NukeSped.UG trojan
Link:
https://www.hybrid-analysis.com/sample/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6
Verdict:
Malicious
File Type:
dll x64
First seen:
2025-11-20T22:59:00Z UTC
Last seen:
2025-11-21T23:42:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Yephiler.gut
Link:
https://opentip.kaspersky.com/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/dc679a8c-1627-47ff-94ef-0b49675a84ae
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1818920
Signature
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1818920 Sample: libmupdf.dll.exe Startdate: 21/11/2025 Architecture: WINDOWS Score: 52 28 Multi AV Scanner detection for submitted file 2->28 30 PE file contains section with special chars 2->30 8 loaddll64.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 8->12         started        14 rundll32.exe 8->14         started        16 3 other processes 8->16 process5 18 rundll32.exe 10->18         started        20 WerFault.exe 20 17 12->20         started        22 WerFault.exe 16 14->22         started        24 WerFault.exe 16 16->24         started        process6 26 WerFault.exe 16 18->26         started       
Score:
9%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6/
Verdict:
Malicious
Threat:
Trojan.Win32.Yephiler
Link:
https://tip.neiki.dev/file/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6
Threat name:
Win64.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2024-08-06 18:17:26 UTC
File Type:
PE+ (Dll)
Extracted files:
3
AV detection:
9 of 24 (37.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5rorjsqbdoumcl2nkgyniy6pkecr72xrmvoh64e5zy77uys57t3a._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/251121-2tknxahj7y/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0dff8a44-d7be-446d-9ede-03b81140f672
Unpacked files
SH256 hash:
ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6
MD5 hash:
bfc91f029550ae117028621869d5c1da
SHA1 hash:
df2f4d8311840488facab07a3ce54cfb86a84041
Link:
https://www.unpac.me/results/eec05acf-6400-4541-b5b8-26061f0c076d/
SH256 hash:
0dd708191dea09f37164fa849aa24d77ae9b2c0cbb0ea195ed415c5773b2ae3e
MD5 hash:
006cbff5d248ab4a1d756bce989830b9
SHA1 hash:
c026066a0a4aee521994a1a407d9fb51bb6c05b7
Link:
https://www.unpac.me/results/eec05acf-6400-4541-b5b8-26061f0c076d/
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/ec5d14ca011ba8c12f4d51b0d463cf51051feaf1655c7f709dce3ffa625dfcf6

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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/38992/

Comments