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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21. 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: 7


Intelligence 7 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21
SHA3-384 hash: 9a55af318344e1ccfd960bfab72e4e8d16f971ef5e14d4ee9fde263f3815276c896d583896c55299304b51773f06e781
SHA1 hash: 3b8b094b352aa45f166c8a4cfbdae1a311b25185
MD5 hash: db7db5886ebd8ad7a5828338b501c877
humanhash: muppet-enemy-april-golf
File name:db7db588_by_Libranalysis
Download: download sample
Signature TrickBot
Create hunting rule
File size:283'648 bytes
First seen:2021-04-30 08:04:17 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 6144:PcPiTQAVW/89BQnmlcGvgZ7r3J8b5IkJK+xoP0I:Wj0I
TLSH DB54D582A2129168F1585F37E826417C42E7EEAA7B38F18B3C14F3B73B771D12E41959
Reporter Libranalysis
Tags:net5 TrickBot


Avatar
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
Application name is Microsoft Excel
Office document is in OLE format
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
3271802 bytesBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
595
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21.zip
Verdict:
No threats detected
Analysis date:
2021-04-30 09:47:54 UTC
Tags:
maldoc-42
Link:
https://app.any.run/tasks/6fa2e0db-ea2d-4846-944f-f2a9b77bb8a8

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:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/147277/
Detection(s):
SecuriteInfo.com.Macro.Downlader-6.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.QakySoWacky.M2.20210218.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4MQakyEsqHomeComing.20210423.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
Legacy Office File
Link:
https://app.docguard.net/1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21/results/dashboard
Payload URLs
URL
File name
jrfastener.com/netmount.
Book
Document image
Image:
Download PNG
Document image
Result
Threat name:
Hidden Macro 4.0 TrickBot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/704327
Signature
Allocates memory in foreign processes
Delayed program exit found
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Drops PE files to the user root directory
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found Excel 4.0 Macro with suspicious formulas
Found malware configuration
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Trickbot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 401083 Sample: db7db588_by_Libranalysis Startdate: 30/04/2021 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 7 other signatures 2->44 8 EXCEL.EXE 91 49 2->8         started        13 taskeng.exe 1 2->13         started        process3 dnsIp4 36 jrfastener.com 184.171.244.170, 443, 49167 DIMENOCUS United States 8->36 26 C:\Users\user\isnsondlk.ksu, PE32 8->26 dropped 28 C:\Users\user\AppData\...\netmount[1].dll, PE32 8->28 dropped 60 Document exploit detected (creates forbidden files) 8->60 62 Document exploit detected (UrlDownloadToFile) 8->62 15 rundll32.exe 8->15         started        17 rundll32.exe 13->17         started        file5 signatures6 process7 process8 19 rundll32.exe 15->19         started        signatures9 46 Writes to foreign memory regions 19->46 48 Allocates memory in foreign processes 19->48 50 Delayed program exit found 19->50 22 wermgr.exe 2 19->22         started        process10 dnsIp11 30 103.124.173.35, 443 SHIRSTY9-ASShirstyInternetServicesPvtLtdIN India 22->30 32 117.252.68.211, 443, 49171, 49173 BSNL-NIBNationalInternetBackboneIN India 22->32 34 7 other IPs or domains 22->34 52 May check the online IP address of the machine 22->52 54 Tries to harvest and steal browser information (history, passwords, etc) 22->54 56 Tries to detect virtualization through RDTSC time measurements 22->56 58 Found evasive API chain (trying to detect sleep duration tampering with parallel thread) 22->58 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21/
Threat name:
Document-Excel.Backdoor.Quakbot
Create hunting rule
Status:
Malicious
First seen:
2021-04-30 08:04:29 UTC
AV detection:
8 of 47 (17.02%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dipm6hnarbcs4wpxolzob3i5aeg7lcrmttpws4zwgeqbcxirbyqq._file
Result
Malware family:
trickbot
Create hunting rule
Score:
  10/10
Tags:
family:trickbot botnet:net5 banker macro trojan xlm
Link:
https://tria.ge/reports/210430-nrfyhd7r6e/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Loads dropped DLL
Downloads MZ/PE file
Templ.dll packer
Process spawned unexpected child process
Trickbot
Malware Config
C2 Extraction:
103.66.72.217:443
117.252.68.211:443
103.124.173.35:443
115.73.211.230:443
117.54.250.246:443
131.0.112.122:443
102.176.221.78:443
181.176.161.143:443
154.79.251.172:443
103.111.199.76:443
103.54.41.193:443
154.79.244.182:443
154.79.245.158:443
139.255.116.42:443
178.254.161.250:443
178.134.47.166:443
158.181.179.229:443
103.90.197.33:443
109.207.165.40:443
178.72.192.20:443
Dropper Extraction:
https://jrfastener.com/netmount.dll
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/1a1ecf1da088452e59f772f2e0ed1d010df58a2c9cdf6973363120115d110e21

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:INDICATOR_DOC_PhishingPatterns
Create hunting rule
Author:ditekSHen
Description:Detects OLE, RTF, PDF and OOXML (decompressed) documents with common phishing strings
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:multiple_concats_in_excel4_exec_enjoy_the_silence
Create hunting rule
Author:Will Metcalf
Description:Behold The Great And Powerful Match Iterator. Multiple Concats with register Function SILENT BUILDER EDITION
Reference:https://blog.reversinglabs.com/blog/excel-4.0-macros
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:SUSP_EnableContent_String_Gen
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
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.

Cape
Cape
https://www.capesandbox.com/analysis/147277/

Comments