MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 74ac060cf278b238c8b162cb85b87d6db26c2fdcb904c2e6727454434a20cbd0. 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



GuLoader


Vendor detections: 10


Intelligence 10 IOCs YARA 1 File information Comments

SHA256 hash: 74ac060cf278b238c8b162cb85b87d6db26c2fdcb904c2e6727454434a20cbd0
SHA3-384 hash: 0ad6a819648753e0fb46de331f1b0c3b6e3a97d03b6e6431396b5e4c23b0e308f89088fc99b8eaf1401e64ae0a35bbf7
SHA1 hash: e66baf3c00fa4ce8d768014d2c9525c7af62d05a
MD5 hash: 64668b30161094a9c943877edf0df188
humanhash: spring-yellow-purple-hydrogen
File name:KD_MEDICAL_POLSKA_23053371.exe
Download: download sample
Signature GuLoader
File size:473'928 bytes
First seen:2023-05-17 16:35:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e160ef8e55bb9d162da4e266afd9eef3 (140 x GuLoader, 33 x RemcosRAT, 17 x AgentTesla)
ssdeep 12288:7SH3fExxOeXza5SnggM7sLzlwoeQ+ImW44+:Yyza5SntM7sLzlwe+Imtf
TLSH T10BA4D0212F64C806E3A258B8D5E2E645FB389E5009258A03E7F57E777AFFB939C05107
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10523/12/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 9ac2da1abe82faba (1 x Formbook, 1 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-10-18T09:31:47Z
Valid to:2025-10-17T09:31:47Z
Serial number: 6eed8b7f4b5a19edc93f8954bf5abcc0ccfec962
Thumbprint Algorithm:SHA256
Thumbprint: a18cc292b06d8bb57d5382c7148d9c5bd3ae9232cbdcaa5b3c87fe34defaf2dd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
278
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
tnega.exe
Verdict:
Malicious activity
Analysis date:
2023-05-17 15:24:35 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Delayed reading of the file
Sending a custom TCP request
Searching for the window
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
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.
Result
Threat name:
GuLoader, FormBook
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 868478 Sample: KD_MEDICAL_POLSKA_23053371.exe Startdate: 17/05/2023 Architecture: WINDOWS Score: 100 35 www.wormholeent.com 2->35 37 www.viewmall.life 2->37 39 26 other IPs or domains 2->39 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 9 KD_MEDICAL_POLSKA_23053371.exe 1 45 2->9         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\System.dll, PE32 9->27 dropped 29 C:\Users\user\AppData\...\vmxnet3ver.dll, PE32 9->29 dropped 31 C:\...\api-ms-win-core-console-l1-2-0.dll, PE32+ 9->31 dropped 57 Tries to detect Any.run 9->57 13 systray.exe 13 9->13         started        16 KD_MEDICAL_POLSKA_23053371.exe 6 9->16         started        signatures6 process7 dnsIp8 59 Tries to steal Mail credentials (via file / registry access) 13->59 61 Tries to harvest and steal browser information (history, passwords, etc) 13->61 63 Writes to foreign memory regions 13->63 71 3 other signatures 13->71 19 explorer.exe 3 1 13->19 injected 23 firefox.exe 13->23         started        33 conexclean.ro 176.126.201.9, 49844, 80 GTSCEGTSCentralEuropeAntelGermanyCZ Romania 16->33 65 Tries to detect Any.run 16->65 67 Maps a DLL or memory area into another process 16->67 69 Sample uses process hollowing technique 16->69 signatures9 process10 dnsIp11 41 www.die-cyber-versicherer.com 130.185.109.77, 49855, 49856, 49857 XIRRADE Germany 19->41 43 www.odmjukstroop.xyz 109.123.121.243, 49847, 49848, 49849 UK2NET-ASGB United Kingdom 19->43 45 16 other IPs or domains 19->45 55 System process connects to network (likely due to code injection or exploit) 19->55 25 WerFault.exe 2 23->25         started        signatures12 process13
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2023-05-15 10:40:00 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49
MD5 hash:
a436db0c473a087eb61ff5c53c34ba27
SHA1 hash:
65ea67e424e75f5065132b539c8b2eda88aa0506
SH256 hash:
74ac060cf278b238c8b162cb85b87d6db26c2fdcb904c2e6727454434a20cbd0
MD5 hash:
64668b30161094a9c943877edf0df188
SHA1 hash:
e66baf3c00fa4ce8d768014d2c9525c7af62d05a
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_Digital_Certificate
Author:albertzsigovits

File information


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

Malspam

GuLoader

Executable exe 74ac060cf278b238c8b162cb85b87d6db26c2fdcb904c2e6727454434a20cbd0

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments