MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e. 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: 8


Maldoc score: 21


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e
SHA3-384 hash: 93ee34c6a3a205e4a97ab73494343a811d8177fcc6fc66c6f2b660929e56ca6e386e4bc885d6d1217096143d9b0b923b
SHA1 hash: a6805a3c7b3b451098389fa6d78c8387ad1a6cce
MD5 hash: baa9b34f152076ecc4e01e35ecc2de18
humanhash: avocado-arizona-golf-foxtrot
File name:700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e.bin
Download: download sample
File size:81'920 bytes
First seen:2021-11-30 00:23:39 UTC
Last seen:Never
File type:Word file docx
MIME type:application/msword
ssdeep 768:kwAvo/qqTYY00aSj0GkSGCtpmKJncnuVY9ikxlK/EhTUDqC19tOtC1qv00pkRH:Mg/bcY00aHGr+KJ/VY9XfuqC19tOAX
TLSH T1008308257A9BC8BBF10505784F9AE3F635B53C409C05634B3625BBBDB87B222E64074E
Reporter Arkbird_SOLG
Tags:apt APT37 Chinotto docx maldoc

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 21
OLE dump

MalwareBazaar was able to identify 14 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
24096 bytesDocumentSummaryInformation
34096 bytesSummaryInformation
47745 bytes1Table
5537 bytesMacros/PROJECT
6131 bytesMacros/PROJECTwm
7900 bytesMacros/VBA/Apply
829887 bytesMacros/VBA/SmartWork
9961 bytesMacros/VBA/Start
101221 bytesMacros/VBA/ThisDocument
11913 bytesMacros/VBA/Windows
124019 bytesMacros/VBA/_VBA_PROJECT
13690 bytesMacros/VBA/dir
1419502 bytesWordDocument
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecDocument_OpenRuns when the Word or Publisher document is opened
SuspiciousOpenMay open a file
SuspiciousRunMay run an executable file or a system command
SuspiciousCreateObjectMay create an OLE object
SuspiciousWindowsMay enumerate application windows (if combined with Shell.Application object)
SuspiciousLibMay run code from a DLL
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousVBProjectMay attempt to modify the VBA code (self- modification)
SuspiciousVBComponentsMay attempt to modify the VBA code (self- modification)
SuspiciouscodeModuleMay attempt to modify the VBA code (self- modification)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
491
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
북한의 최근 정세와 우리의 안보.doc
Verdict:
Suspicious activity
Analysis date:
2021-09-10 05:51:12 UTC
Tags:
macros macros-on-open generated-doc
Link:
https://app.any.run/tasks/e79fc576-f8a8-47e7-a4f6-41bd85ce545e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.wordprocessingml.document
Has a screenshot:
False
Contains macros:
True
Detection(s):
TwinWave.EvilDoc.DOCXRSTRGOOD.WSCRIPT.SHELL.200129.UNOFFICIAL
Create hunting rule

TwinWave.CROStringManipulationDontMessAroundWithJim.20200804.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CROKissFromARose.M5.20210108.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.WSCRIPT.210223.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.ACCESSVBOM.210427.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.CROMiscreantNeuralLinkTerra.20210721.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.WSCRIPT.SHELL.211119.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Office.Macro-12.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.STRINGBUILDERCaliNights.20210823.UNOFFICIAL
Create hunting rule

Sanesecurity.Badmacro.Doc.blankopen.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Link:
https://app.docguard.net/700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive macros macros-on-open obfuscated virus
Link:
https://www.filescan.io/uploads/61a56f25bbfd2af97cbb3059/reports/6b087e87-33d4-448f-a77b-08795ff9f5c1/overview
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/898354
Signature
Antivirus / Scanner detection for submitted sample
Creates a thread in another existing process (thread injection)
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to WSH operations (process, registry, environment, or keystrokes)
Document contains an embedded VBA with many string operations indicating source code obfuscation
Document exploit detected (process start blacklist hit)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e/
Threat name:
Script-Macro.Trojan.Minerva
Create hunting rule
Status:
Malicious
First seen:
2021-09-07 15:24:44 UTC
File Type:
Document
Extracted files:
24
AV detection:
25 of 44 (56.82%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro macro_on_action suricata xlm
Link:
https://tria.ge/reports/211130-ap29lsdacn/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Program crash
Drops file in Windows directory
Process spawned unexpected child process
suricata: ET MALWARE Maldoc OneDrive Download Activity (GET)
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/700db4ae28f53782d239e83db189c7c956b06f61e04cb4a55ff4bc759faa170e

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_VBA_FileSystem_Access
Create hunting rule
Author:Florian Roth
Description:Detects suspicious VBA that writes to disk and is activated on document open
Reference:Internal Research
Rule name:SUSP_VBA_FileSystem_Access_RID30A9
Create hunting rule
Author:Florian Roth
Description:Detects suspicious VBA that writes to disk and is activated on document open
Reference:Internal Research

File information

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

  
X
https://twitter.com/cyberwar_15/status/1465266204889649153

Comments