MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28c26c34bdb7a826385868133025f41dcb9f5313bb26d1a2ef365d3a9f913bd3. 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



Nymaim


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: 28c26c34bdb7a826385868133025f41dcb9f5313bb26d1a2ef365d3a9f913bd3
SHA3-384 hash: 44aba6611bc3c13283317c62761154b03ce68219363090972b1db22962ee36a30d4e5bb2a1823c61459f82617a1c3a8d
SHA1 hash: 35b9012235c5a7c3094fc87f5a54fc542e8b78ab
MD5 hash: bd23f2ee2aea0a9c0464bc44292485fc
humanhash: early-uniform-wyoming-hamper
File name:file
Download: download sample
Signature Nymaim
File size:1'991'168 bytes
First seen:2024-11-30 12:08:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:rutpGoG8L/bDG2x7Q+cn32w2iNL2A4vyrWnPOuk4FkQe:rmGObDG2x7Q+c9NG6in1NkQ
Threatray 1 similar samples on MalwareBazaar
TLSH T14F9533EA7E536438C5B9343F153F0A2D3FFF9EACA58703AC084246790AB3175D9465A2
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon eea3998aa6d2a990 (33 x Nymaim, 1 x GCleaner)
Reporter Bitsight
Tags:exe NyMaim


Avatar
Bitsight
url: http://31.41.244.11/files/unique2/random.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
404
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2024-11-30 12:18:56 UTC
Tags:
themida gcleaner loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
vmdetect virus small zusy
Result
Verdict:
Malware
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed packed packer_detected
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Yara detected Nymaim
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.CobaltStrike
Status:
Malicious
First seen:
2024-11-30 12:09:06 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery evasion
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
1e655101d162ea4b063aecb7a7e1731689a62803696e9b52dc18c154b683c5da
MD5 hash:
6a045284e0d4ce3775659c30d7eb98db
SHA1 hash:
7f92911e613ca1eca3514229551a1d5dc1a768f3
SH256 hash:
28c26c34bdb7a826385868133025f41dcb9f5313bb26d1a2ef365d3a9f913bd3
MD5 hash:
bd23f2ee2aea0a9c0464bc44292485fc
SHA1 hash:
35b9012235c5a7c3094fc87f5a54fc542e8b78ab
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:pe_detect_tls_callbacks
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

Nymaim

Executable exe 28c26c34bdb7a826385868133025f41dcb9f5313bb26d1a2ef365d3a9f913bd3

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments