MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7
SHA3-384 hash: 76ee73aa384e3db39af458c9475ce4c55a7a693b8b2065ffc5e3a1e46115d53a653e856bc9b01253546a03695379d2b7
SHA1 hash: 1f7ddffeab4660bb48219f0f79ab7cb7d9cbe9c9
MD5 hash: c479926ebcdd3d04713b1432b76ea636
humanhash: orange-winter-speaker-eighteen
File name:AWB524967.scr
Download: download sample
Signature GuLoader
Create hunting rule
File size:603'417 bytes
First seen:2026-03-31 18:48:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 115 x GuLoader, 72 x RemcosRAT)
ssdeep 12288:r0yeHITloKtdv/5L5TLfyUVTAGZ3LUbBLGCR2pUOos7gARuQ:MHIppN1fyArJ+2pBgE
Threatray 3'327 similar samples on MalwareBazaar
TLSH T186D42214FA93C88CC91C45F03EB68615D7D4AE6C2A6D091B9FC2BAD1B1FE853D62C352
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 f4926b29736d2790 (2 x GuLoader)
Reporter threatcat_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
147
Origin country :
CH CH
Vendor Threat Intelligence
Gathering data
Malware family:
remcos
Create hunting rule
ID:
1
File name:
29032026_1456_26032026_DHLFORMAWB524967.gz
Verdict:
Malicious activity
Analysis date:
2026-03-29 15:03:32 UTC
Tags:
arch-exec rat remcos auto-reg
Link:
https://app.any.run/tasks/e2ef3b6e-a135-4adf-bd5e-012adf15dd8c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/59952/
Detection(s):
Win.Trojan.Nsisinject-10059852-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69cc17336363ca5d27f04d96
Tags:
injection obfusc virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-03-27T02:15:00Z UTC
Last seen:
2026-04-02T09:33:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sba HEUR:Trojan-Downloader.Win32.Minix.gen Backdoor.Win32.Remcos.sb Trojan.Win32.GuLoader.sb HEUR:Trojan.NSIS.GuLoader.gen Trojan-Downloader.Win32.Minix.sb Trojan.NSIS.Makoob.sbd
Link:
https://opentip.kaspersky.com/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/e3c755e0-db8b-4297-a138-a63f926f4768
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1891663
Signature
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1891663 Sample: AWB524967.scr.exe Startdate: 31/03/2026 Architecture: WINDOWS Score: 100 55 drive.usercontent.google.com 2->55 57 drive.google.com 2->57 65 Found malware configuration 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 Yara detected GuLoader 2->69 71 4 other signatures 2->71 10 AWB524967.scr.exe 4 58 2->10         started        14 remcos.exe 32 2->14         started        16 remcos.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\Local\...\System.dll, PE32 10->49 dropped 81 Tries to detect virtualization through RDTSC time measurements 10->81 83 Unusual module load detection (module proxying) 10->83 85 Switches to a custom stack to bypass stack traces 10->85 18 AWB524967.scr.exe 2 10 10->18         started        23 AWB524967.scr.exe 10->23         started        51 C:\Users\user\AppData\Local\...\System.dll, PE32 14->51 dropped 87 Found direct / indirect Syscall (likely to bypass EDR) 14->87 25 remcos.exe 14->25         started        27 remcos.exe 14->27         started        signatures6 process7 dnsIp8 59 drive.usercontent.google.com 142.251.211.161, 443, 49739, 49741 GOOGLEUS United States 18->59 61 drive.google.com 142.251.45.78, 443, 49738, 49740 GOOGLEUS United States 18->61 45 C:\ProgramData\Remcos\remcos.exe, PE32 18->45 dropped 47 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 18->47 dropped 73 Detected Remcos RAT 18->73 75 Creates autostart registry keys with suspicious names 18->75 29 remcos.exe 32 18->29         started        33 AWB524967.scr.exe 18->33         started        77 Found direct / indirect Syscall (likely to bypass EDR) 25->77 35 remcos.exe 25->35         started        file9 signatures10 process11 file12 53 C:\Users\user\AppData\Local\...\System.dll, PE32 29->53 dropped 89 Multi AV Scanner detection for dropped file 29->89 91 Tries to detect virtualization through RDTSC time measurements 29->91 93 Unusual module load detection (module proxying) 29->93 95 2 other signatures 29->95 37 remcos.exe 4 7 29->37         started        41 remcos.exe 29->41         started        signatures13 process14 dnsIp15 63 172.245.246.91, 2404 AS-COLOCROSSINGUS United States 37->63 79 Detected Remcos RAT 37->79 43 remcos.exe 37->43         started        signatures16 process17
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-03-27 06:54:57 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nj743t7pn3unx7pm2w3dkwsfv7nmvc6cfumv7y4vnx7wrtlykg3q._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0cb6636748ff6a60ebf1a4644a7b4c877f8a19edd8c7a2eac10b34d1bd7cbfbf
GuLoader
199bd66bf9f7b299ebf9068feb2e8648404097e26f86cabc5462973769d24df5
GuLoader
1eda1b310543e616e8b7b97e8e5f13597fb3a67ed9658b3daba2f49361563689
GuLoader
482f10e5f1825368c6cdacf482febf39ed6d035ce866aded813d18890cf86dca
GuLoader
657a48043a872f3b614e4d7b335d71dea8b72c8292cb2cab1f2e67b2fc1b3c47
GuLoader
9ffd17a68654d3474794940762417fe1bc39a5ea87ce5877daa135ac783273e8
GuLoader
ea3c63e01dc18acb8940dbbe5bec6c3cdcb6c117b6a213b9e7e02c11caeabee0
GuLoader
ef66ea0bcee19ccd3d2771a170ff218a3e43b27f1b18f24e08685cb4d3fe053a
GuLoader
error
GuLoader
f2a42302b9c4f3e6c1e2e5d15dfa09cb41aad80ebc13678c4a412f77d4141ca0
GuLoader
+ 3'317 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery installer persistence rat
Link:
https://tria.ge/reports/260331-xghxbsdt7m/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
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
Remcos
Remcos family
Malware Config
C2 Extraction:
172.245.246.91:2404
Unpacked files
SH256 hash:
6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7
MD5 hash:
c479926ebcdd3d04713b1432b76ea636
SHA1 hash:
1f7ddffeab4660bb48219f0f79ab7cb7d9cbe9c9
Link:
https://www.unpac.me/results/20984349-cce6-40f8-815a-e0b14c29437d/
SH256 hash:
d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57
MD5 hash:
4ca4fd3fbefa2f6e87e6e9ee87d1c0b3
SHA1 hash:
7cdbeb5ff2b14b86af04e075d0ca651183ea5df4
Link:
https://www.unpac.me/results/20984349-cce6-40f8-815a-e0b14c29437d/
SH256 hash:
d253ca5aba34b925796777893f114cc741b015af7868022ab1db2341288c55ed
MD5 hash:
eb2c74e05b30b29887b3219f4ea3fdab
SHA1 hash:
91173d46b34e7bae57acabdbd239111b5bcc4d9e
Link:
https://www.unpac.me/results/20984349-cce6-40f8-815a-e0b14c29437d/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6a7fcdcfef6e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.79
Link:
https://yomi.yoroi.company/submissions/6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
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 6a7fcdcfef6ee8dbfdecd5b6355a45afdaca8bc22d195fe3956dff68cd7851b7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/59952/

Comments