MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1. 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


DBatLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1
SHA3-384 hash: f59a550aa836ed945aeb142a7d9e473662d3c18b1f984aa4849250c033b212e8645bd5b68b4d633902160db59599f9bf
SHA1 hash: 66344cc6bd38fcd883bbda4aafe31293c53eb6ea
MD5 hash: 8fba73bedafdacd14bc5f9a24fbd2876
humanhash: nevada-potato-helium-don
File name:document_office.doc
Download: download sample
Signature DBatLoader
Create hunting rule
File size:25'438 bytes
First seen:2022-08-02 10:08:01 UTC
Last seen:Never
File type:Word file doc
MIME type:application/octet-stream
ssdeep 768:yGIpBgTc6uJv6CeE0lIKtGVVHFdxFIBjvOoKWYSRW68Lky:yGmBOuJv67E0lIKsBFdjIpGoKtWW68LH
TLSH T1A0B2CBBEB69B4E4CEB07D654140A7FA90629F92CA3C444C0BBBCE7307D5D90B8B21538
Reporter madjack_red
Tags:CVE-2017-11882 DBatLoader doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
271
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
document_office.doc
Verdict:
Malicious activity
Analysis date:
2022-08-02 10:07:51 UTC
Tags:
trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/ee690a2f-3fb1-4274-8c5a-35fa43bb1586

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.Spam-473.UNOFFICIAL
Create hunting rule

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

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-11882 embedequation exploit javascript keylogger packed shellcode
Link:
https://www.filescan.io/uploads/62e8f7bf5c07b66577ec4b86/reports/d0d98926-0c1e-4f44-ba52-981fc8bde72f/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
DBatLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1044784
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Initial sample is an obfuscated RTF file
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 677278 Sample: document_office.doc Startdate: 02/08/2022 Architecture: WINDOWS Score: 100 51 Initial sample is an obfuscated RTF file 2->51 53 Multi AV Scanner detection for domain / URL 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 14 other signatures 2->57 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 291 21 2->15         started        17 explorer.exe 2 2->17         started        process3 dnsIp4 47 192.227.158.100, 49173, 80 AS-COLOCROSSINGUS United States 10->47 39 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 10->39 dropped 41 C:\Users\Public\vbc.exe, PE32 10->41 dropped 73 Office equation editor establishes network connection 10->73 75 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->75 19 vbc.exe 1 14 10->19         started        43 ~WRF{749E4CF0-2E79...B-1660577F063B}.tmp, Composite 15->43 dropped file5 signatures6 process7 dnsIp8 45 morientlines.com 103.11.189.121, 443, 49174, 49175 VODIEN-AS-AP-LOC2VodienInternetSolutionsPteLtdSG Singapore 19->45 37 C:\Users\Public\Librariespfokx.exe, PE32 19->37 dropped 59 Multi AV Scanner detection for dropped file 19->59 61 Writes to foreign memory regions 19->61 63 Allocates memory in foreign processes 19->63 24 cleanmgr.exe 1 19->24         started        file9 signatures10 process11 signatures12 65 Modifies the context of a thread in another process (thread injection) 24->65 67 Maps a DLL or memory area into another process 24->67 69 Sample uses process hollowing technique 24->69 71 Queues an APC in another process (thread injection) 24->71 27 explorer.exe 2 5 24->27 injected process13 process14 29 Epfokx.exe 11 27->29         started        33 wlanext.exe 27->33         started        dnsIp15 49 morientlines.com 29->49 77 Multi AV Scanner detection for dropped file 29->77 79 Writes to foreign memory regions 29->79 81 Allocates memory in foreign processes 29->81 35 cleanmgr.exe 1 29->35         started        83 Modifies the context of a thread in another process (thread injection) 33->83 85 Maps a DLL or memory area into another process 33->85 signatures16 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-08-02 08:46:42 UTC
File Type:
Document
Extracted files:
5
AV detection:
14 of 25 (56.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wbq3x2evvmdcaq6utahhkxxkoiovywskmzxjrhmwj4mjbvj3plyq._file
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader persistence trojan
Link:
https://tria.ge/reports/220802-mg3xdsfacl/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Enumerates connected drives
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
ModiLoader Second Stage
ModiLoader, DBatLoader
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
Link:
https://yomi.yoroi.company/submissions/b061bbe895ab062043d4980e755eea721d5c5a4a666e989d964f1890d53b7af1

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
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
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