MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef35e3d843043518bacc8245bf32cc2dda251b5a61b6fe48a9c0a94eab46142b. 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



Threat unknown


Vendor detections: 12


Intelligence 12 IOCs YARA 7 File information Comments

SHA256 hash: ef35e3d843043518bacc8245bf32cc2dda251b5a61b6fe48a9c0a94eab46142b
SHA3-384 hash: 0b91478e907884b10e681b277b20d37d0d547fcdc3eafee422aa79e59c000f21395db4f994f74863ce7c65ff41dfb96b
SHA1 hash: 1a2566de43937bd59c75e84861a3426082892a7b
MD5 hash: d1aad5e46b5659869ec0c7d2bc049a9d
humanhash: minnesota-texas-three-helium
File name:PDFSkills.exe
Download: download sample
File size:2'293'976 bytes
First seen:2025-11-22 22:59:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 49152:813Z/5f/udkulTST6APcCcXN90ywBQ2aZs:2x3cE2AkCcXD0ywLaG
TLSH T1F8B57A92B212830AFD0F19F5E6D2B363E332AB41A61391066634255CCB5FDA43FD619F
TrID 56.5% (.EXE) Win64 Executable (generic) (10522/11/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 9669696969696996
Reporter Hexastrike
Tags:exe fakeconverter signed stealer

Code Signing Certificate

Organisation:BLACK INDIGO LTD
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2024-11-12T06:40:48Z
Valid to:2025-11-13T06:40:48Z
Serial number: 833fe041bd96b8c2940154
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: e707edc9064c2208a6ac11236a2fb88985e40ac73157560bb33ad7836a1f89b5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
105
Origin country :
IE IE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
pdfskills.exe
Verdict:
Malicious activity
Analysis date:
2024-12-04 18:29:31 UTC
Tags:
arch-exec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.9%
Tags:
injection obfusc crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a file in the %AppData% subdirectories
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 expired-cert fingerprint httpbrowser packed revoked-cert signed
Verdict:
Clean
File Type:
exe x64
First seen:
2024-12-05T00:28:00Z UTC
Last seen:
2024-12-05T05:43:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
51 / 100
Signature
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1617950 Sample: pdfskills.exe Startdate: 18/02/2025 Architecture: WINDOWS Score: 51 62 val.skillcli.com 2->62 64 resources.onestart.ai 2->64 66 3 other IPs or domains 2->66 80 Suricata IDS alerts for network traffic 2->80 82 Multi AV Scanner detection for dropped file 2->82 84 Multi AV Scanner detection for submitted file 2->84 8 pdfskills.exe 19 28 2->8         started        12 msiexec.exe 2->12         started        14 msiexec.exe 2->14         started        16 svchost.exe 1 2 2->16         started        signatures3 process4 dnsIp5 74 cbn.skillcli.com 198.71.59.132, 443, 49701, 49702 ONEANDONE-ASBrauerstrasse48DE United States 8->74 48 17 other files (14 malicious) 8->48 dropped 18 powershell.exe 9 8->18         started        21 chrome.exe 9 8->21         started        24 PDFSkillsApp.exe 2 8->24         started        36 C:\Users\user\AppData\Local\...\MSIAC0E.tmp, PE32 12->36 dropped 38 C:\Users\user\AppData\Local\...\MSIABDE.tmp, PE32 12->38 dropped 40 C:\Users\user\AppData\Local\...\MSIABAE.tmp, PE32 12->40 dropped 50 6 other malicious files 12->50 dropped 42 C:\Windows\Installer\MSIF9E2.tmp, PE32 14->42 dropped 44 C:\Windows\Installer\MSIF915.tmp, PE32 14->44 dropped 46 C:\Windows\Installer\MSIF877.tmp, PE32 14->46 dropped 52 2 other malicious files 14->52 dropped 26 msiexec.exe 14->26         started        29 msiexec.exe 14->29         started        76 127.0.0.1 unknown unknown 16->76 file6 process7 dnsIp8 78 Loading BitLocker PowerShell Module 18->78 31 conhost.exe 18->31         started        68 192.168.2.17, 443, 49691, 49692 unknown unknown 21->68 70 239.255.255.250 unknown Reserved 21->70 33 chrome.exe 21->33         started        72 resources.onestart.ai 143.204.98.8, 50021, 80 AMAZON-02US United States 26->72 54 C:\Users\user\...\onestart_installer.exe.part, PE32+ 26->54 dropped file9 signatures10 process11 dnsIp12 56 googleads.g.doubleclick.net 142.250.185.194, 443, 49783, 49794 GOOGLEUS United States 33->56 58 td.doubleclick.net 172.217.16.130, 443, 49771, 49780 GOOGLEUS United States 33->58 60 7 other IPs or domains 33->60
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.12 SOS: 0.14 SOS: 0.19 SOS: 0.20 SOS: 0.28 SOS: 0.62 Win 64 Exe x64
Verdict:
Malicious
Threat:
NetworkReferences.Malware.Generic
Threat name:
ByteCode-MSIL.Browser.MediaArena
Status:
Malicious
First seen:
2024-12-04 16:22:03 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
87
AV detection:
15 of 36 (41.67%)
Threat level:
  4/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Verdict:
Malicious
Tags:
apt
YARA:
IronTiger_HTTPBrowser_Dropper
Unpacked files
SH256 hash:
ef35e3d843043518bacc8245bf32cc2dda251b5a61b6fe48a9c0a94eab46142b
MD5 hash:
d1aad5e46b5659869ec0c7d2bc049a9d
SHA1 hash:
1a2566de43937bd59c75e84861a3426082892a7b
SH256 hash:
e938f64d33317c64a7f25ee69325d02ad8779a819e4037f586091cc552e39a96
MD5 hash:
810259c5c89ab2652b4feeda974fbbda
SHA1 hash:
8912052c78aaa5389f01d177f6784837a43fa9bd
SH256 hash:
9c9cdb1a91444dc9c99df071f2dac4791d20112e0df786da40069a1e76594803
MD5 hash:
cc27c18e7becced15c8a682b0bbc9d4a
SHA1 hash:
3a44acb3aa5402e36a2b46206471e0e94826c5bd
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:IronTiger_HTTPBrowser_Dropper
Author:Cyber Safety Solutions, Trend Micro
Description:Iron Tiger Malware - HTTPBrowser Dropper
Reference:http://goo.gl/T5fSJC
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:Sus_CMD_Powershell_Usage
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.

Comments