MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2. 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


Dridex


Vendor detections: 11


Maldoc score: 23


Intelligence 11 IOCs YARA 8 File information Comments
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SHA256 hash: 0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2
SHA3-384 hash: 663ccbcfed6a3c67f6536df7e2a5980c9359d017c539f158c3ca2e605a8abc5922541f8de0d3546feffcfca48c94e115
SHA1 hash: 4aff22939a2a78df037fde10d23be5b01ed3c595
MD5 hash: 1fd8680331c0e47f178ae6992574c402
humanhash: east-tennessee-fifteen-tennis
File name:Attach 522967.xlsm
Download: download sample
Signature Dridex
Create hunting rule
File size:204'169 bytes
First seen:2021-03-24 18:54:46 UTC
Last seen:2021-03-24 21:05:56 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 6144:BfEJld/UytaageF7kWc3x8nx83Ia5XjSGX:Bsfd/H11tch8nx8rNt
TLSH 83141399D433E262EF7AAC3883260DA36D4C358DC167F24E4ACDE1451BD2557231E3AB
Reporter TeamDreier
Tags:Dridex

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: 23
OLE dump

MalwareBazaar was able to identify 34 sections in this file using oledump:

Section IDSection sizeSection name
A197 bytesNkCifAmaE_QHY_wK_DqjVFaGXcPRWD/CompObj
A2286 bytesNkCifAmaE_QHY_wK_DqjVFaGXcPRWD/VBFrame
A338 bytesNkCifAmaE_QHY_wK_DqjVFaGXcPRWD/f
A40 bytesNkCifAmaE_QHY_wK_DqjVFaGXcPRWD/o
A5985 bytesPROJECT
A6461 bytesPROJECTwm
A797 bytesRpisMkHIFbApja_JdclMKoKQ/CompObj
A8306 bytesRpisMkHIFbApja_JdclMKoKQ/VBFrame
A994 bytesRpisMkHIFbApja_JdclMKoKQ/f
A1018236 bytesRpisMkHIFbApja_JdclMKoKQ/o
A112686 bytesVBA/IYjd_i_ZirJTfXYBSBZAH
A121835 bytesVBA/LDNkKFgYCFnj
A134572 bytesVBA/NkCifAmaE_QHY_wK_DqjVFaGXcPRWD
A142239 bytesVBA/POOuMiun
A153040 bytesVBA/RpisMkHIFbApja_JdclMKoKQ
A16991 bytesVBA/Sheet1
A171585 bytesVBA/ThisWorkbook
A182314 bytesVBA/XgjbDbKsVmdBmN_vxGiKK
A192276 bytesVBA/Z_LJawcg_m
A206946 bytesVBA/_VBA_PROJECT
A212979 bytesVBA/__SRP_0
A22194 bytesVBA/__SRP_1
A23310 bytesVBA/__SRP_2
A24306 bytesVBA/__SRP_3
A25170 bytesVBA/__SRP_4
A26156 bytesVBA/__SRP_5
A27170 bytesVBA/__SRP_6
A28156 bytesVBA/__SRP_7
A29170 bytesVBA/__SRP_8
A30156 bytesVBA/__SRP_9
A31170 bytesVBA/__SRP_a
A32156 bytesVBA/__SRP_b
A331377 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
SuspiciousOpenMay open a file
SuspiciousPutMay write to a file (if combined with Open)
SuspiciousBinaryMay read or write a binary file (if combined with Open)
SuspiciousrunMay run an executable file or a system command
SuspiciousCreateMay execute file or a system command through WMI
SuspiciousShowWindowMay hide the application
SuspiciousGetObjectMay get an OLE object with a running instance
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousXorMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
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)

Intelligence

File Origin
# of uploads :
2
# of downloads :
276
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Attach 522967.xlsm
Verdict:
Malicious activity
Analysis date:
2021-03-24 19:05:19 UTC
Tags:
macros macros-on-open
Link:
https://app.any.run/tasks/d2967cf8-810d-484d-b69c-439681fe7090

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):
TwinWave.EvilDoc.WelcomeBackEmotetThatsWhyTheyCallItWindowPain.2020717.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.WithGObjComingBackToLife.20201124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file
Using the Windows Management Instrumentation requests
Launching a process
Creating a process with a hidden window
DNS request
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Link:
https://app.docguard.net/0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2/results/dashboard
Document image
Image:
Download PNG
Document image
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Result
Threat name:
Dridex
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/652874
Signature
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA with base64 encoded strings
Found malware configuration
Machine Learning detection for dropped file
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes / dynamic malware analysis system (file name check)
Yara detected Dridex unpacked file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2/
Threat name:
Script-Macro.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-03-24 18:54:23 UTC
AV detection:
10 of 47 (21.28%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aj23pplcgj7gx2b5htivjvilne7kxzboqxs4tnobd5pnnjvaj3ba._file
Result
Malware family:
dridex
Create hunting rule
Score:
  10/10
Tags:
family:dridex botnet:111 botnet evasion loader macro trojan
Link:
https://tria.ge/reports/210324-4gmsmxmc9j/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Checks whether UAC is enabled
Loads dropped DLL
Blocklisted process makes network request
Dridex Loader
Dridex
Process spawned unexpected child process
Malware Config
C2 Extraction:
131.100.24.231:443
162.144.34.234:6601
5.189.181.107:2303
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/0275b7bd62327e6be83d3cd154d50b693eabe42e85e5c9b5c11f5ed6a6a04ec2

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_TrickBot_xlsm_20210324
Create hunting rule
Author:abuse.ch
Description:Detects TrickBot xlsm
Rule name:DridexV4
Create hunting rule
Author:kevoreilly
Description:Dridex v4 Payload
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:MALWARE_Win_DLLLoader
Create hunting rule
Author:ditekSHen
Description:Detects unknown DLL Loader
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.

Comments