MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5ac99eae1547a0fb06d8ae2972a78ef3e913b552a28c1dcc4c84161a3824ed40. 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: 11
| SHA256 hash: | 5ac99eae1547a0fb06d8ae2972a78ef3e913b552a28c1dcc4c84161a3824ed40 |
|---|---|
| SHA3-384 hash: | 8a117426acc141d0c7244106f8a3cdeaa66fc958f54c0c8620881c9c54fb4bb6101942d3d8525241aa7de21eb44d15df |
| SHA1 hash: | 07146b6ffac6ab4cedc4a15504e073ad8b556f9f |
| MD5 hash: | 8404d43217aa07976f923f384e6c2305 |
| humanhash: | oxygen-washington-twelve-lake |
| File name: | file |
| Download: | download sample |
| File size: | 13'130 bytes |
| First seen: | 2022-10-29 14:42:43 UTC |
| Last seen: | Never |
| File type: |  rtf |
| MIME type: | application/octet-stream |
| ssdeep | 192:v4GwtWAZ6rpXWLVt1hMKEVdooKrjoU8V5IKL/EJScorvhZS2Nr4nWgdI/BjqejTt:Twv2hWLVtQErjFBKjhLN4nWHjlt |
| TLSH | T1DB424CACD66B43EECF8D63A022191E8C576CBB3DE3541543343433722E5AA1D4313878 |
| Reporter |  jstrosch |
| Tags: | CVE-2017-11882 rtf |
Intelligence
File Origin
# of uploads :
1
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
lokibot
ID:
1
File name:
Freight Invoice No V8POOLINI3691.docx
Verdict:
Malicious activity
Analysis date:
2022-10-28 15:20:40 UTC
Tags:
opendir trojan exploit cve-2017-11882 loader lokibot
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Spam-473.UNOFFICIAL
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Sanesecurity.Malware.27333.RtfHeur.BadVer.UNOFFICIAL
SecuriteInfo.com.FakeRTF-1.UNOFFICIAL
Sanesecurity.Malware.26244.RtfHeur.UNOFFICIAL
MiscreantPunch.RTF.EvilRTF.CVE-2017-0199-Obfus.UNOFFICIAL
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Result
Verdict:
Malware
Maliciousness:
Behaviour
Changing a file
Creating a file
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Creating a file in the system32 subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Searching for the window
Creating a window
Searching for synchronization primitives
Сreating synchronization primitives
Reading critical registry keys
Sending a custom TCP request
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
javascript
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Initial sample is an obfuscated RTF file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office equation editor establishes network connection
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Behaviour
Behavior Graph:
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2022-10-29 14:43:06 UTC
File Type:
Document
Extracted files:
5
AV detection:
14 of 26 (53.85%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Blocklisted process makes network request
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
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: | INDICATOR_RTF_MalVer_Objects |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents. |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | SUSP_RTF_Header_Anomaly_RID2F7F |
|---|---|
| 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.
Web download
rtf 5ac99eae1547a0fb06d8ae2972a78ef3e913b552a28c1dcc4c84161a3824ed40
(this sample)
Delivery method
Distributed via web download
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