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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a2e8be22be85b4f151672fc24a5e39ce6e652ac69751d94cc60241480f51f7. 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


ZLoader


Vendor detections: 7


Maldoc score: 8


Intelligence 7 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8a2e8be22be85b4f151672fc24a5e39ce6e652ac69751d94cc60241480f51f7
SHA3-384 hash: bfae09f64d9a868f6d54f32f7b4f8998ecc41bf2f83a170586d8c47a7b3c478a7cc1536dae267f0d9fdb81077891f103
SHA1 hash: baf402f1a41e812b7e59888dc6719621c5d2dd39
MD5 hash: ef665cb1b6b71405248df39c1e4a49dd
humanhash: washington-april-early-cola
File name:i103808.xlsm
Download: download sample
Signature ZLoader
Create hunting rule
File size:20'683 bytes
First seen:2021-03-25 08:26:37 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 384:ZrCGGbLaxkkf5xlxA+3FVOdbnRhJttGavFIlkdoRDUlM9zbJmw:JCGyG5LmIKfhJlCDxZb
TLSH 9B92C06D8BE0F017C0378DBED40C00F17D19A0899B49A2DC19E9E7473E4126B625E5A6
Reporter JoulK
Tags:xlsm ZLoader

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: 8
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
Base64jZbalpi
SuspiciousFORMULA.FILLMay modify Excel 4 Macro formulas at runtime
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macrosheetXLM macrosheet found. It could contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
i103808.xlsm
Verdict:
No threats detected
Analysis date:
2021-03-25 08:27:05 UTC
Tags:
macros40
Link:
https://app.any.run/tasks/f8524df0-007a-4316-b3f4-3b918cffab12

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
Detection(s):
SecuriteInfo.com.Office.Macro-1.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Zloader.KeepTheirHeadsRingin.20210311.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Zloader.KeepTheirHeadsRingin.M2.20210311.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Link:
https://app.docguard.net/a8a2e8be22be85b4f151672fc24a5e39ce6e652ac69751d94cc60241480f51f7/results/dashboard
Result
Threat name:
Hidden Macro 4.0
Create hunting rule
Detection:
malicious
Classification:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/653518
Signature
Found abnormal large hidden Excel 4.0 Macro sheet
Hides that the sample has been downloaded from the Internet (zone.identifier)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8a2e8be22be85b4f151672fc24a5e39ce6e652ac69751d94cc60241480f51f7/
Threat name:
Document-Excel.Downloader.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-03-25 01:12:01 UTC
AV detection:
5 of 48 (10.42%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcrorprcx2c3j4krm4x4ess6hhhg4zjky2lvdwkmyybecsapkh3q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210325-zjmj7elf5x/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
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/a8a2e8be22be85b4f151672fc24a5e39ce6e652ac69751d94cc60241480f51f7

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
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Microsoft_XLSX_with_Macrosheet
Create hunting rule
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
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.

  
Delivery method
Distributed via e-mail link

Comments