MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8bb19a7bf43ec0921edd4f9d725175732e3d3519274f7d35f65f90f782f16f2. 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: 9


Maldoc score: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: b8bb19a7bf43ec0921edd4f9d725175732e3d3519274f7d35f65f90f782f16f2
SHA3-384 hash: a5e191e79fa0421023f5ee0d5f2a8bf0947432f30e3b16314013346886e25666be835543a942379c158aa39f3d720f9e
SHA1 hash: bee0a67ea491edff47c060d83d1456cc1041a99a
MD5 hash: 157c2e3b6c4ee017877d9f0660225d73
humanhash: one-georgia-monkey-magazine
File name:Outline.xlsm
Download: download sample
File size:393'414 bytes
First seen:2021-02-22 07:07:03 UTC
Last seen:2021-02-22 08:42:01 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:xI9vuYeFTHhUvVobTgNh4154M3yuTX8Jr3XqpEiVDy/:7RjZQ41abYMJTapje/
TLSH 7584120AF771E58CEE5750B0DAE46EE52368CE13C0EE7EA29537A3CC7A0936215114DE
Reporter abuse_ch
Tags:xlsm


Avatar
abuse_ch
Payload URL:
http://188.127.254.61/7623458734897653.exe

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: 9
OLE dump

MalwareBazaar was able to identify 9 sections in this file using oledump:

Section IDSection sizeSection name
A1518 bytesPROJECT
A2104 bytesPROJECTwm
A3977 bytesVBA/Sheet1
A4977 bytesVBA/Sheet2
A5977 bytesVBA/Sheet3
A64694 bytesVBA/ThisWorkbook
A72962 bytesVBA/_VBA_PROJECT
A8560 bytesVBA/dir
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
AutoExecWorkbook_OpenRuns when the Excel Workbook is opened
IOCowershell.exeExecutable file name
SuspiciousRunMay run an executable file or a system command
SuspiciousGetObjectMay get an OLE object with a running instance
SuspiciousSystemMay run an executable file or a system command on a Mac (if combined with libc.dylib)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
2
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b8bb19a7bf43ec0921edd4f9d725175732e3d3519274f7d35f65f90f782f16f2.zip
Verdict:
Malicious activity
Analysis date:
2021-02-22 07:14:40 UTC
Tags:
evasion loader trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a window
Creating a process with a hidden window
Sending an HTTP GET request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Deleting a recently created file
Launching a process by exploiting the app vulnerability
Result
Verdict:
Suspicious
File Type:
Excel File with Macro
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.expl.evad
Score:
80 / 100
Signature
Document exploit detected (process start blacklist hit)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Amphitryon
Status:
Malicious
First seen:
2021-02-22 07:07:07 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro pyinstaller
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Detects Pyinstaller
Looks up external IP address via web service
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
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:Email_stealer_bin_mem
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information


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

Malspam

Excel file xlsm b8bb19a7bf43ec0921edd4f9d725175732e3d3519274f7d35f65f90f782f16f2

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments