MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa
SHA3-384 hash: 44a7fa6ef91f46d22b2905427b6385b8b70b299168865e8fa5a281bee230f0a5bc681b163c442a1b60f652466a5b5f3d
SHA1 hash: 2a6a0f90092eaec35e6bd719843c28c6a04e7956
MD5 hash: 137d77c69e300e9dcb264eb0e84f7364
humanhash: hotel-batman-wolfram-white
File name:2606291ATC.pdf.rtf
Download: download sample
File size:163'602 bytes
First seen:2026-07-22 08:33:12 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/plain
ssdeep 768:efmRu37SkOcsIPZsfjm0vtY9crKX11emD:MmRujFZsfj1lWD
TLSH T1C0F39A58D78F41A1CF80A23B432A8E8815FDB73AB24605B674AC877137EDD3E05A657C
Magika txt
Reporter lowmal3
Tags:CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
MSO
Details
Link:
https://research.acce.ciphertechsolutions.com/results/43895469-57b4-408f-a73f-79bb87d11b11/
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
Create hunting rule

YARA.DITEKSHEN_INDICATOR_RTF_Malver_Objects.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Connection attempt by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Labled as:
Exploit.RTF
Link:
https://www.hybrid-analysis.com/sample/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa
Verdict:
Malicious
File Type:
rtf
First seen:
2026-07-21T22:57:00Z UTC
Last seen:
2026-07-23T06:04:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1946396
Signature
Antivirus / Scanner detection for submitted sample
Initial sample is an obfuscated RTF file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2026-07-22 04:34:27 UTC
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cgwl6tblgp67jlbc7vxja3wfgspakrdc77x5pa3ytnye7pyanx5a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260722-kla13afn6w/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/11acbf4c2b33/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/11acbf4c2b33fdf4ac22fd6e906ec5349e054462ffefd783789b704fbf006dfa

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:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection
Rule name:SUSP_RTF_Header_Anomaly_RID2F7F
Create hunting rule
Author:Florian Roth
Description:Detects malformed RTF header often used to trick mechanisms that check for a full RTF header
Reference:https://twitter.com/ItsReallyNick/status/975705759618158593

File information

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

Comments