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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b. 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: 19


Intelligence 19 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b
SHA3-384 hash: 5c99ca3eee76e496d2cb1888ba7a9fdcc9621e267abd9c7d231f366a7bc3f79a16dfa3a070c08b798efb2e15aa95dbe5
SHA1 hash: 8546f3ac3e0aa10d85635f311e8987ccfa504515
MD5 hash: f02a38815eb8616d21ef9a028e438e5e
humanhash: louisiana-lactose-orange-summer
File name:Cifferpositioners.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:578'968 bytes
First seen:2026-05-06 09:03:37 UTC
Last seen:2026-06-08 09:16:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (326 x GuLoader, 65 x AgentTesla, 63 x RemcosRAT)
ssdeep 12288:wT3pPfVF/GSNnFKkOb3lyxafVXTfmq8b7ezGTWz8PsGKd:wTZPfVtGS5FKL3lyxUVD5EizGjs9
TLSH T1EDC4F163BB00A4C3DC34C93019666352677AAF77D8D12A5333E1BF1EBCB3D86602A556
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 027970f8b8e8c8c0 (2 x RemcosRAT, 1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Frkapslen
Issuer:Frkapslen
Algorithm:sha256WithRSAEncryption
Valid from:2026-03-25T10:50:47Z
Valid to:2027-03-25T10:50:47Z
Serial number: 5b2a11d4569e2d3e5982fd12f273e8603fc65164
Thumbprint Algorithm:SHA256
Thumbprint: 8101ef74b3497ae218a2229f819554a5abe2a4832021bb53e64a0b2d5d36b61d
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
168
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
GuLoader
a c2 URL, a useragent string, and a string XOR key
GuLoader
an XOR decryption key and an extracted component
NSIS
extracted archive contents
Link:
https://research.acce.ciphertechsolutions.com/results/a035a8db-b677-401c-aeb9-284cef9ec4b6/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Cifferpositioners.exe
Verdict:
Malicious activity
Analysis date:
2026-05-06 09:10:40 UTC
Tags:
rat remcos auto-reg
Link:
https://app.any.run/tasks/642a3c30-80bc-4b38-9a3b-069801d79d09

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/64657/
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive installer installer installer-heuristic microsoft_visual_cc nsis powershell signed
Link:
https://www.filescan.io/uploads/69fb0412fd9cdd68416e4b26/reports/69ca74e2-2492-4604-923a-3d63cfcae0d4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-06T03:53:00Z UTC
Last seen:
2026-05-07T19:44:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.GuLoader.sb HEUR:Trojan-Downloader.Win32.Minix.gen Trojan.NSIS.Makoob.sba Trojan-Downloader.Win32.Minix.sb HEUR:Trojan.NSIS.GuLoader.gen
Link:
https://opentip.kaspersky.com/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c3b58890-e046-4057-9dfe-70434ff56057
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1909226
Signature
AI detected suspicious PE digital signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1909226 Sample: Cifferpositioners.exe Startdate: 06/05/2026 Architecture: WINDOWS Score: 100 69 drive.usercontent.google.com 2->69 71 drive.google.com 2->71 79 Suricata IDS alerts for network traffic 2->79 81 Found malware configuration 2->81 83 Antivirus detection for dropped file 2->83 85 8 other signatures 2->85 10 Cifferpositioners.exe 1 38 2->10         started        14 remcos.exe 2->14         started        16 remcos.exe 2->16         started        signatures3 process4 file5 63 C:\Users\user\AppData\Local\...\System.dll, PE32 10->63 dropped 97 Tries to detect virtualization through RDTSC time measurements 10->97 99 Unusual module load detection (module proxying) 10->99 101 Switches to a custom stack to bypass stack traces 10->101 18 Cifferpositioners.exe 2 10 10->18         started        23 Cifferpositioners.exe 10->23         started        65 C:\Users\user\AppData\Local\...\System.dll, PE32 14->65 dropped 25 remcos.exe 14->25         started        27 remcos.exe 14->27         started        signatures6 process7 dnsIp8 73 drive.usercontent.google.com 142.250.217.225, 443, 49760, 49763 GOOGLEUS United States 18->73 75 drive.google.com 142.251.41.174, 443, 49759, 49762 GOOGLEUS United States 18->75 53 C:\ProgramData\Remcos\remcos.exe, PE32 18->53 dropped 55 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 18->55 dropped 87 Detected Remcos RAT 18->87 89 Creates autostart registry keys with suspicious names 18->89 29 remcos.exe 27 18->29         started        33 Cifferpositioners.exe 18->33         started        35 remcos.exe 25->35         started        file9 signatures10 process11 file12 67 C:\Users\user\AppData\Local\...\System.dll, PE32 29->67 dropped 111 Multi AV Scanner detection for dropped file 29->111 113 Found hidden mapped module (file has been removed from disk) 29->113 115 Tries to detect virtualization through RDTSC time measurements 29->115 117 2 other signatures 29->117 37 remcos.exe 4 10 29->37         started        42 remcos.exe 29->42         started        signatures13 process14 dnsIp15 77 31.57.184.187, 2404, 49764, 49765 RASANAIR Iran (ISLAMIC Republic Of) 37->77 57 C:\Users\user\AppData\Local\Temp\TH7D17.tmp, MS-DOS 37->57 dropped 59 C:\Users\user\AppData\Local\Temp\TH7CD8.tmp, MS-DOS 37->59 dropped 61 C:\Users\user\AppData\Local\Temp\TH7C89.tmp, MS-DOS 37->61 dropped 91 Detected Remcos RAT 37->91 93 Writes to foreign memory regions 37->93 95 Maps a DLL or memory area into another process 37->95 44 RmClient.exe 37->44         started        47 RmClient.exe 37->47         started        49 RmClient.exe 37->49         started        51 4 other processes 37->51 file16 signatures17 process18 signatures19 103 Tries to steal Instant Messenger accounts or passwords 44->103 105 Tries to steal Mail credentials (via file / registry access) 44->105 107 Tries to harvest and steal browser information (history, passwords, etc) 47->107 109 Unusual module load detection (module proxying) 49->109
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/f02a38815eb8616d21ef9a028e438e5e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b
Threat name:
Win32.Trojan.Qwexlafiba
Create hunting rule
Status:
Malicious
First seen:
2026-05-06 06:56:53 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=767bfpwvk53giqymxytd3fuoq2eapwuwvqgiwtiivy2l42tywnnq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery macos persistence rat
Link:
https://tria.ge/reports/260506-k2d3nah17m/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Family: Remcos
Malware Config
C2 Extraction:
31.57.184.187:2404
Unpacked files
SH256 hash:
ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b
MD5 hash:
f02a38815eb8616d21ef9a028e438e5e
SHA1 hash:
8546f3ac3e0aa10d85635f311e8987ccfa504515
Link:
https://www.unpac.me/results/48495a9f-21c5-4697-90fe-c2e9abc6129c/
SH256 hash:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Link:
https://www.unpac.me/results/48495a9f-21c5-4697-90fe-c2e9abc6129c/
SH256 hash:
c719697d5ced17d97bbc48662327339ccec7e03f6552aa1d5c248f6fa5f16324
MD5 hash:
ca5bb0ee2b698869c41c087c9854487c
SHA1 hash:
4a8abbb2544f1a9555e57a142a147dfeb40c4ca4
Link:
https://www.unpac.me/results/48495a9f-21c5-4697-90fe-c2e9abc6129c/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ffbe12bed557/report/overview.html
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/ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b

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
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Malspam

GuLoader

Executable exe ffbe12bed5577664430cbe263d968e868807da96ac0c8b4d08ae34be6a78b35b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/64657/

Comments