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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e983c26fcb6dbe84ffccacc31eaff2e5101958e7cab982604c955f5d33ffa7c6. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: e983c26fcb6dbe84ffccacc31eaff2e5101958e7cab982604c955f5d33ffa7c6
SHA3-384 hash: 00a81ae8fa0622155147a36af7e18480b38b0b43e4aae2828a1e3e768ec9d58090cf898bce3957590c0d5c8948d4f9e8
SHA1 hash: 8af20fcebb43a4f0222330792b98d7f08e2a2b81
MD5 hash: aee6ca39ba369176831af0805fee5a1f
humanhash: hawaii-wyoming-coffee-lamp
File name:Overlev.exe
Download: download sample
Signature GuLoader
File size:689'104 bytes
First seen:2025-11-18 14:34:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e2a592076b17ef8bfb48b7e03965a3fc (419 x GuLoader, 63 x RemcosRAT, 52 x AgentTesla)
ssdeep 12288:zobLq6yJj7QvQPgYi+Jyg5/CiqOsg5XBPzLO:sbLPyJj7QvQPgYi+Jd5/qOb/7i
Threatray 2'289 similar samples on MalwareBazaar
TLSH T16EE406C2688087D5DC6BF2F2A4DA54380AD62CED91E551896EF5725D00F1AFBCC2E93C
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 0f0f03131d670703 (5 x VIPKeylogger, 3 x GuLoader, 1 x PhantomStealer)
Reporter James_inthe_box
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Intermembranous
Issuer:Intermembranous
Algorithm:sha256WithRSAEncryption
Valid from:2025-11-03T06:44:04Z
Valid to:2026-11-03T06:44:04Z
Serial number: 62a4308f57893d8aed42b3492ba80d711c28fba6
Thumbprint Algorithm:SHA256
Thumbprint: 72f40621d2d09d68fd7244271837067c65199363bdaa73390567c1509de9f0b7
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
152
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Overlev.exe
Verdict:
Malicious activity
Analysis date:
2025-11-18 14:35:50 UTC
Tags:
snake keylogger evasion telegram stealer ims-api generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Сreating synchronization primitives
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole installer installer installer-heuristic microsoft_visual_cc nsis overlay signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-18T06:40:00Z UTC
Last seen:
2025-11-20T07:24:00Z UTC
Hits:
~100
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-11-18 10:06:18 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
5 of 37 (13.51%)
Threat level:
  5/5
Result
Malware family:
vipkeylogger
Score:
  10/10
Tags:
family:guloader family:vipkeylogger collection discovery downloader keylogger spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Guloader family
Guloader,Cloudeye
VIPKeylogger
Vipkeylogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8522979734:AAGUCVHJ4F7jcgMVtktprGwu5rmXb6vJX7M/sendMessage?chat_id=7229870489
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
e983c26fcb6dbe84ffccacc31eaff2e5101958e7cab982604c955f5d33ffa7c6
MD5 hash:
aee6ca39ba369176831af0805fee5a1f
SHA1 hash:
8af20fcebb43a4f0222330792b98d7f08e2a2b81
SH256 hash:
2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
MD5 hash:
a4dd044bcd94e9b3370ccf095b31f896
SHA1 hash:
17c78201323ab2095bc53184aa8267c9187d5173
SH256 hash:
8dc2be6679497994e3ddc97bc7bc1ce2b3c17ef3528b03ded6696ef198a11d10
MD5 hash:
0c44f21d4afc81cc99fac7cc35e4503a
SHA1 hash:
3d0d5c684df99a46510c0e2c0020163a9d11c08d
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:Detect_NSIS_Nullsoft_Installer
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
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.

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