MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303. 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

Loki

Vendor detections: 9

Maldoc score: 27

Intelligence 9 IOCs YARA 12 File information Comments

SHA256 hash:	99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303
SHA3-384 hash:	579e59a01171d02ad67f461c4356061aaa404a4933b0bff8ae6691ee7d9508f9ef2926cae4f630726139651b1e7ffb1b
SHA1 hash:	ad5a6f0bf5b0a8d4d5efcf33ea5d7ce588921a10
MD5 hash:	5aefdf6afc1e5eb0d642ad7a0c245088
humanhash:	august-leopard-lamp-green
File name:	RFQ.xls
Download:	download sample
Signature	Loki Create hunting rule
File size:	91'136 bytes
First seen:	2020-12-04 19:49:41 UTC
Last seen:	2020-12-04 21:48:44 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:7nxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAty1WW7cgxKGbpI3TNy/8eC3KSjYT30M:7nxEtjPOtioVjDGUU1qfDlaGGx+cL2Qa
TLSH	B59308527285DC52C6A807360CE7C6F6232BBC10AF73870B329DF71E6F736909952A56
Reporter	abuse_ch
Tags:	Loki xls

abuse_ch

Loki payload URL:
http://digicon.com.mx/ofhnmkolkm/XZYjfbnrtjtnxsrg4008u.exe

Loki C2:
http://104.223.143.21/frilt/Panel/five/fre.php

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: 27

Application name is Microsoft Excel

Office document is in OLE format

Office document contains VBA Macros

OLE dump

MalwareBazaar was able to identify 19 sections in this file using oledump:

Section ID	Section size	Section name
1	107 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	204 bytes	SummaryInformation
4	47318 bytes	Workbook
5	574 bytes	_VBA_PROJECT_CUR/PROJECT
6	128 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	953 bytes	_VBA_PROJECT_CUR/VBA/Module1
8	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
9	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
10	985 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
11	16030 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
12	7372 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
13	3163 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
14	320 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
15	136 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
16	104 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
17	2816 bytes	_VBA_PROJECT_CUR/VBA/__SRP_4
18	682 bytes	_VBA_PROJECT_CUR/VBA/__SRP_5
19	612 bytes	_VBA_PROJECT_CUR/VBA/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:

Type	Keyword	Description
AutoExec	Workbook_Open	Runs when the Excel Workbook is opened
Suspicious	Open	May open a file
Suspicious	Write	May write to a file (if combined with Open)
Suspicious	adodb.stream	May create a text file
Suspicious	SaveToFile	May create a text file
Suspicious	Shell	May run an executable file or a system command
Suspicious	WScript.Shell	May run an executable file or a system command
Suspicious	CreateObject	May create an OLE object
Suspicious	Shell.Application	May run an application (if combined with CreateObject)
Suspicious	microsoft.xmlhttp	May download files from the Internet
Suspicious	Chr	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
Suspicious	Xor	May attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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) code and P-code are different, this may have been used to hide malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

215

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

MiscreantPunch.EvilMacro.DL.170224.UNOFFICIAL

TwinWave.EvilDoc.CROAndTheTangerineDream.M1.20200630.UNOFFICIAL

TwinWave.EvilDoc.CROAndTheTangerineDream.M2.20200630.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Creating a file in the %AppData% subdirectories

Reading critical registry keys

Launching a service

Creating a file

Changing a file

Replacing files

Connection attempt

Sending an HTTP POST request

Deleting a recently created file

Moving a file to the %AppData% subdirectory

Enabling the 'hidden' option for recently created files

Sending an HTTP GET request

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Stealing user critical data

Creating a process from a recently created file

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303/results/dashboard

Document image

Image:

Download PNG

Result

Verdict:

SUSPICIOUS

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

Shell.Application Object

Detected the instantiation of Shell Application object within the macro.

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Result

Threat name:

Lokibot

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/556027

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Detected unpacking (changes PE section rights)

Detected unpacking (creates a PE file in dynamic memory)

Detected unpacking (overwrites its own PE header)

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 HTTP operations

Document contains an embedded VBA with hexadecimal encoded strings

Document contains an embedded VBA with many randomly named variables

Document contains VBA stomped code (only p-code) potentially bypassing AV detection

Document exploit detected (creates forbidden files)

Document exploit detected (drops PE files)

Document exploit detected (process start blacklist hit)

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Office process drops PE file

Sigma detected: MS Office Product Spawning Exe in User Dir

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file access)

Tries to steal Mail credentials (via file registry)

Yara detected aPLib compressed binary

Yara detected Lokibot

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303/

Threat name:

Script-Macro.Downloader.Powdow

Status:

Malicious

First seen:

2020-12-04 12:01:32 UTC

AV detection:

18 of 29 (62.07%)

Threat level:

3/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=thhqjndidyr35fcf3vkgnarr6urhmzc7jqtd4tjmdrzq47jgimbq._file

Result

Malware family:

lokibot

Score:

10/10

Tags:

family:lokibot macro spyware stealer trojan

Link:

https://tria.ge/reports/201204-czm86245tj/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Loads dropped DLL

Executes dropped EXE

Lokibot

Malware Config

C2 Extraction:

http://104.223.143.21/frilt/Panel/five/fre.php
http://kbfvzoboss.bid/alien/fre.php
http://alphastand.trade/alien/fre.php
http://alphastand.win/alien/fre.php
http://alphastand.top/alien/fre.php

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

Threat name:

Lokibot

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303

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:	infostealer_loki Create hunting rule

Rule name:	infostealer_xor_patterns Create hunting rule
Author:	jeFF0Falltrades
Description:	The XOR and string patterns shown here appear to be unique to certain information-stealing malware families, namely LokiBot and Pony/Fareit. The XOR patterns were observed in a several loaders and payloads for LokiBot, but have also appeared (less frequently) in Pony/Fareit loaders and samples. The two accompanying rules below can be used to further classify the final payloads.

Rule name:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Loki Create hunting rule
Author:	kevoreilly
Description:	Loki Payload

Rule name:	Lokibot Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Lokibot in memory
Reference:	internal research

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:	STEALER_Lokibot Create hunting rule
Author:	Marc Rivero \| McAfee ATR Team
Description:	Rule to detect Lokibot stealer

Rule name:	UAC_bypass_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	UAC bypass in files like avemaria

Rule name:	win_lokipws_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	with_sqlite Create hunting rule
Author:	Julian J. Gonzalez <info@seguridadparatodos.es>
Description:	Rule to detect the presence of SQLite data in raw image
Reference:	http://www.st2labs.com

File information

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

Malspam

Loki

xls 99cf04b4681e23be9445dd54668231f52276645f4c263e4d2c1c730e7d264303

(this sample)

URLhaus

https://urlhaus.abuse.ch/host/digicon.com.mx/

Delivery method

Distributed via e-mail attachment

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