MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce
SHA3-384 hash: ba26512a964c57bbde35b53ea7007fcdc7329724a15cbeae1e8546e78f42f9b1b00f7fe00c897fa2762e570f682e7d04
SHA1 hash: a5bd3df0c217839fc05553931738530612025706
MD5 hash: 3947dec31c2b7cb15a267b987d147361
humanhash: black-robert-fish-kilo
File name:Solicitud cotizacion USFQ25092384·pdf.js
Download: download sample
Signature Formbook
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File size:17'567 bytes
First seen:2025-09-25 08:40:44 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 384:t4foDU0wZtDsCOCf4naNNKla9DkBRvk3JP6o:t4f1bANG4naNLy0Co
Threatray 1'469 similar samples on MalwareBazaar
TLSH T19E72C6D49E83FD7A455EB7865EC48B60CFB84525F1126072B14FE72062042A88F3D6EF
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
97
Origin country :
SE SE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.26863.JsHeur.UNOFFICIAL
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Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d54f42cc9425144151e022
Tags:
stration spawn shell
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/68d500f474e5a28989929ace/reports/8155c1d2-be40-484a-9a89-83bf0da6d96c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce
Verdict:
Malicious
File Type:
js
First seen:
2025-09-23T11:45:00Z UTC
Last seen:
2025-09-23T11:45:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1783959
Signature
Antivirus detection for URL or domain
Creates processes via WMI
Early bird code injection technique detected
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
JavaScript source code contains functionality to generate code involving a shell, file or stream
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
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
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses runas.exe to run programs with evaluated privileges
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1783959 Sample: Solicitud cotizacion USFQ25... Startdate: 25/09/2025 Architecture: WINDOWS Score: 100 43 www.gooder.bar 2->43 45 www.7130ce.vip 2->45 47 4 other IPs or domains 2->47 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 5 other signatures 2->65 11 powershell.exe 18 2->11         started        14 wscript.exe 1 1 2->14         started        signatures3 process4 signatures5 69 Early bird code injection technique detected 11->69 71 Writes to foreign memory regions 11->71 73 Found suspicious powershell code related to unpacking or dynamic code loading 11->73 75 Queues an APC in another process (thread injection) 11->75 16 msiexec.exe 6 11->16         started        19 conhost.exe 11->19         started        77 Wscript starts Powershell (via cmd or directly) 14->77 79 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->79 81 Suspicious execution chain found 14->81 83 Creates processes via WMI 14->83 21 powershell.exe 14 18 14->21         started        process6 dnsIp7 53 Maps a DLL or memory area into another process 16->53 55 Hides threads from debuggers 16->55 24 LTbqABggP1Ldad.exe 16->24 injected 49 drive.usercontent.google.com 142.250.73.129, 443, 49691, 49697 GOOGLEUS United States 21->49 51 drive.google.com 142.251.215.238, 443, 49690, 49696 GOOGLEUS United States 21->51 57 Found suspicious powershell code related to unpacking or dynamic code loading 21->57 27 conhost.exe 21->27         started        signatures8 process9 signatures10 67 Maps a DLL or memory area into another process 24->67 29 runas.exe 13 24->29         started        process11 signatures12 85 Tries to steal Mail credentials (via file / registry access) 29->85 87 Tries to harvest and steal browser information (history, passwords, etc) 29->87 89 Modifies the context of a thread in another process (thread injection) 29->89 91 2 other signatures 29->91 32 AV6D94xTw4J.exe 29->32 injected 35 chrome.exe 29->35         started        37 firefox.exe 29->37         started        process13 dnsIp14 41 gooder.bar 3.33.130.190, 49698, 49699, 80 AMAZONEXPANSIONGB United States 32->41 39 WerFault.exe 4 35->39         started        process15
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce/
Threat name:
Script-JS.Trojan.GuLoader
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Status:
Malicious
First seen:
2025-09-23 22:20:00 UTC
File Type:
Text
AV detection:
12 of 36 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5a345bobbqqw44snai2y5eipuj7gwhet374okhwxdzkodfymldha._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0380c01d290b6b77769d1494aa19fea1b893446a0048330314a93b695f0ec1dd
Formbook
2be5b104a63deb6addd9d49ffea10cfbefc8c214c2578f4554b6272ca3856899
Formbook
55d8dc6d475a919fe7ec17bd2575cf0f0a1eec913dba89f9556b69621eec0eb6
Formbook
5dfcdc1c491fbf2f7f2fbac6bbf27b84be652583b66b252c46e8ed86577c3c60
Formbook
67fd31f9b85ca5e31e0851c8a5f8f2f36343d884aa3dd7f26d4aa6c5d02b28fe
Formbook
dd6d8363c2761f77948a54be192dbbe563d2da9dd8f922102547631ccbd05ebb
Formbook
e0c21356fdd99942e1d9e89f0afee73e5f14772bf5f8836ab8b96a997ba76768
Formbook
error
Formbook
+ 1'459 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250925-knj2raeq3z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
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/e837ce85c10c216e724d02358e910fa27e6b1c93dff8e51ed71e54e1970c58ce

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:CP_AllMal_Detector
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Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

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

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