MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77c83543a8b258d3bda52528197f56418d2ae17b2b710c9dbf87aae59e5d0f35. 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

TrickBot

Vendor detections: 5

Maldoc score: 6

Intelligence 5 IOCs YARA 9 File information Comments

SHA256 hash:	77c83543a8b258d3bda52528197f56418d2ae17b2b710c9dbf87aae59e5d0f35
SHA3-384 hash:	97bdca3007e0cad19076c9b64b2a9442a5266fbea1cf7a427fde7b128f1c7990029a6ae1d1e77be4ce33baa2913419f7
SHA1 hash:	00feb1d9535505553a71ddbab3845fdcf0644077
MD5 hash:	e42c61b4b6a620f3cbe106210b482fa0
humanhash:	hamper-indigo-winner-missouri
File name:	e42c61b4_by_Libranalysis
Download:	download sample
Signature	TrickBot Create hunting rule
File size:	187'789 bytes
First seen:	2021-05-24 19:01:20 UTC
Last seen:	Never
File type:	xlsx
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	3072:IRevjbv8cKSsYHIdBasCFifAZxcXL49TAarG10OHzX:cov8cKSsYodBXC0YnW49MarG19TX
TLSH	330402EDAA91E525E7A408F3C4405B831C771FC747876C6A7B12628477B09F742C4AAA
Reporter	Libranalysis
Tags:	TrickBot

Libranalysis

Uploaded as part of the sample sharing project

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: 6

OLE vba

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

Type	Keyword	Description
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	XLM macrosheet	XLM macrosheet found. It could contain malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

472

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

e42c61b4_by_Libranalysis

Verdict:

No threats detected

Analysis date:

2021-05-24 19:31:56 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/2b5b447a-4872-48ed-a144-5ce6cfa53817

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Legit

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

True

Detection(s):

TwinWave.EvilDoc.OXML.EvilMacroSheetMignightQakTrainToMemphis.20210521.UNOFFICIAL

TwinWave.EvilDoc.OXML.EvilMacroSheetMignightQakTrainToMemphis.20210121.UNOFFICIAL

TwinWave.EvilDoc.OXML.EvilMacroSheetMignightQakTrainToMemphis.M2.20210521.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/77c83543a8b258d3bda52528197f56418d2ae17b2b710c9dbf87aae59e5d0f35/results/dashboard

Document image

Image:

Download PNG

Result

Threat name:

Hidden Macro 4.0

Detection:

malicious

Classification:

expl.evad

Score:

80 / 100

Link:

https://www.joesandbox.com/analysis/790734

Signature

Antivirus detection for URL or domain

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Found Excel 4.0 Macro with suspicious formulas

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Sigma detected: Microsoft Office Product Spawning Windows Shell

Yara detected Obfuscated Macro In XLSM

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/77c83543a8b258d3bda52528197f56418d2ae17b2b710c9dbf87aae59e5d0f35/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=o7edkq5iwjmnhpnfeuubs72wiggsvyl3fnyqzhn7q6volhs5b42q._file

Result

Malware family:

n/a

Score:

10/10

Tags:

macro xlm

Link:

https://tria.ge/reports/210524-41hakqt2nj/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://188.119.113.227/44340.795744213.dat
http://2.56.244.8/44340.795744213.dat
http://185.141.26.131/44340.795744213.dat

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.20

Link:

https://yomi.yoroi.company/submissions/77c83543a8b258d3bda52528197f56418d2ae17b2b710c9dbf87aae59e5d0f35

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:	ach_IcedID_xlsm_20210326_2 Create hunting rule
Author:	abuse.ch
Description:	Detects IcedID xlsm

Rule name:	ach_TrickBot_xlsm_20210324 Create hunting rule
Author:	abuse.ch
Description:	Detects TrickBot xlsm

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.

No further information available

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