MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff. 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


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff
SHA3-384 hash: 5d25e3712cb2bb350b2965e1da6367e5bf34638bc6cc0a17590d5a475790e1281e379c316b312d5f666a96082fd8ada2
SHA1 hash: 373305187f4633cd1455cf0b01c5998800d9949e
MD5 hash: 316e2f245880ba2f31a6a32574bcc798
humanhash: diet-pennsylvania-montana-double
File name:RFQ 6000423118.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:442'576 bytes
First seen:2026-08-13 08:58:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (142 x GuLoader, 57 x Formbook, 44 x VIPKeylogger)
ssdeep 6144:dXFKo5ClMKn912RmsFhH+0CeFBll7iFqI8SQFfbUTQ2+qv26fwegjW:dXE2dHOeFBllAqIfQJb2Mqu+vE
TLSH T1F194BF14B795C85DC29016BA2A335F9805BCAE027A4DCE6362D0797D29F4EF198CE1CF
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 9200d496a292d4c4 (2 x Formbook)
Reporter lowmal3
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Strmeren
Issuer:Strmeren
Algorithm:sha256WithRSAEncryption
Valid from:2026-08-11T01:28:19Z
Valid to:2027-08-11T01:28:19Z
Serial number: 0d17d90eec1f239565ad41bd270960099fc42436
Thumbprint Algorithm:SHA256
Thumbprint: 0482267d9deb45ce73e904aba72e75afe6a802b5057ca3cd4bee44e018309fe4
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
148
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/433c9f1d-4313-468f-8f35-2a9765966303/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-08-13 09:08:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/03fed50f-afc8-4201-9fdf-047c7e619a4d

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/80839/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %temp% directory
Delayed reading of the file
Deleting a recently created file
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
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer installer microsoft_visual_cc nsis phishing signed
Link:
https://www.filescan.io/uploads/6a7d8731459c03932a6f87ef/reports/06f8d2fd-2f3a-4a9f-b19f-8b2a73eae335/overview
Verdict:
Malicious
Labled as:
Injector.EZZP
Link:
https://www.hybrid-analysis.com/sample/d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-12T22:31:00Z UTC
Last seen:
2026-08-15T07:01:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/35a58949-2abc-4287-8196-11b6b7c0bac0
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1957361
Signature
AI detected suspicious PE / MSI digital signature
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
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
Queries Google from non browser process on port 80
Queues an APC in another process (thread injection)
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 Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1957361 Sample: RFQ 6000423118.exe Startdate: 13/08/2026 Architecture: WINDOWS Score: 100 34 www.mobilik.xyz 2->34 36 www.darkriver.xyz 2->36 38 26 other IPs or domains 2->38 50 Suricata IDS alerts for network traffic 2->50 52 Antivirus detection for URL or domain 2->52 54 Multi AV Scanner detection for submitted file 2->54 58 9 other signatures 2->58 10 RFQ 6000423118.exe 30 2->10         started        signatures3 56 Performs DNS queries to domains with low reputation 36->56 process4 file5 32 C:\Users\user\AppData\Local\...\System.dll, PE32 10->32 dropped 68 Found direct / indirect Syscall (likely to bypass EDR) 10->68 14 RFQ 6000423118.exe 6 10->14         started        18 RFQ 6000423118.exe 10->18         started        signatures6 process7 dnsIp8 46 drive.usercontent.google.com 142.250.217.1, 443, 49865 GOOGLE-GoogleLLCUS United States 14->46 48 drive.google.com 142.251.211.78, 443, 49864 GOOGLE-GoogleLLCUS United States 14->48 70 Modifies the context of a thread in another process (thread injection) 14->70 72 Maps a DLL or memory area into another process 14->72 74 Queues an APC in another process (thread injection) 14->74 76 Found direct / indirect Syscall (likely to bypass EDR) 14->76 20 J40RVtfE0.exe 14->20 injected 22 RFQ 6000423118.exe 14->22         started        signatures9 process10 process11 24 write.exe 13 20->24         started        signatures12 60 Tries to steal Mail credentials (via file / registry access) 24->60 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 64 Modifies the context of a thread in another process (thread injection) 24->64 66 3 other signatures 24->66 27 rn8FTSMR.exe 24->27 injected 30 firefox.exe 24->30         started        process13 dnsIp14 40 hkip66.xp94.com 218.247.87.66, 49956, 49957, 49958 WEST263GO-HKWest263InternationalLimitedHK Hong Kong SAR China 27->40 42 onstatic-pt.setupdns.net 81.88.57.70, 49915, 49916, 49917 REGISTER-ASIT Italy 27->42 44 15 other IPs or domains 27->44
Score:
87%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff
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/316e2f245880ba2f31a6a32574bcc798
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Suspicious
First seen:
2026-08-13 03:35:00 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2gmxupmi26c6n5bqkiv3wf3vzi3bqcjtlkp7hmhe747pqq5q4t7q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260813-kxdakaek31/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
d1997a3d88d785e6f430522bbb1775ca361809335a9ff3b0e4ff3ef843b0e4ff
MD5 hash:
316e2f245880ba2f31a6a32574bcc798
SHA1 hash:
373305187f4633cd1455cf0b01c5998800d9949e
Link:
https://www.unpac.me/results/3866b477-c88a-44af-9eb1-e85e9e37b00a/
SH256 hash:
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
MD5 hash:
4add245d4ba34b04f213409bfe504c07
SHA1 hash:
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
Link:
https://www.unpac.me/results/3866b477-c88a-44af-9eb1-e85e9e37b00a/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d1997a3d88d7/report/overview.html
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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_all_IPv6_variants
Create hunting rule
Author:Bierchermuesli
Description:Generic IPv6 catcher
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:FormhookB
Create hunting rule
Author:kevoreilly
Description:Formbook Anti-hook Bypass
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:NSIS
Create hunting rule
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
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.
Rule name:Win_FakeInstaller_PythonShellcodeLoader_Crepectl_2026
Create hunting rule
Author:SixHands
Description:Detects the analyzed fake installer sample using .key config, XOR key, and Python/fiber shellcode loader traits

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/80839/

Comments