MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459. 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


Threat unknown


Vendor detections: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459
SHA3-384 hash: c52448af9dbf4313df8c5b8c54df89fed6191cdad042d68ba9232913b4e29309791c37c128dabb6147b9f97a438bd379
SHA1 hash: c962f611538622e0ffa2f9b5a166162beb4d15f8
MD5 hash: f2e277b03ac396bee42b4f9d0418e20d
humanhash: coffee-fanta-single-spaghetti
File name:Umyxyg.exe
Download: download sample
File size:1'782'272 bytes
First seen:2024-08-26 11:16:28 UTC
Last seen:2024-08-26 16:20:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 49152:4uxx1f9tXUjgp7fuouvNa2YU2Y5giGlZG:4m1f9vpT7uvgAg6
TLSH T1C885335C395D5F83C4968E3B54C778A74BF2A0B4DB51E58F70D8BBC829143A2C83A267
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter lowmal3
Tags:exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
372
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Umyxyg.exe
Verdict:
Malicious activity
Analysis date:
2024-08-26 11:18:59 UTC
Tags:
purecrypter purelogs netreactor stealer exfiltration
Link:
https://app.any.run/tasks/eb810133-829a-4fab-8afb-e1481055bf3e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilheracles-10017859-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66cc6430b2a4681a7296a522
Tags:
Network Stealth Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed smartassembly smart_assembly
Link:
https://www.filescan.io/uploads/66cc643558cbff3e3abd99f1/reports/31592783-e44b-4eab-9904-a054f7df7d5f/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7afc8ffb-1d3d-41ef-ad6e-a54b6679d18b
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1498987
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-08-26 07:47:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2647dox2me6kk2tslfiwta2a7awycpift5cvvuvip7lqbw5w4rmq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery persistence
Link:
https://tria.ge/reports/240826-ndp2sssckk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Loads dropped DLL
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a6c7d7bd-dba4-4b97-8dfc-fe318f427ff1
Unpacked files
SH256 hash:
347427337c7adaec4d1bc88669f1329450a4437f0708663aad0c0c5f7dd21b62
MD5 hash:
7a0575155bc5e21832d7532bea6a4760
SHA1 hash:
f8bf5e76f5bc9105ad20667522d153572e157e98
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/53076286-4ba5-49ee-acf4-52c939dcf652/
SH256 hash:
d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459
MD5 hash:
f2e277b03ac396bee42b4f9d0418e20d
SHA1 hash:
c962f611538622e0ffa2f9b5a166162beb4d15f8
Link:
https://www.unpac.me/results/53076286-4ba5-49ee-acf4-52c939dcf652/
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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Executable exe d7b9f1bafa613ca56a725951698340f82d813d059f455ad2a87fd700dbb6e459

(this sample)

  
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 (GUARD_CF)high

Comments