MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 05b9806f446c71ca46bbddc10176bf28838430bbecb9545cc730fdb93b205476. 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: 9


Maldoc score: 35


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: 05b9806f446c71ca46bbddc10176bf28838430bbecb9545cc730fdb93b205476
SHA3-384 hash: 085d8d3550d34df84c9766575ada7fbe4b582e7f864f773df8a42d02beb2c33dbac93a09f56333d51fd03fbc9d1db3ff
SHA1 hash: 5b58a1fefd63ca221b0eeca61b9378db25ae0eb1
MD5 hash: 82ee594ab9d12d0a00bf399beb7f4e1f
humanhash: saturn-alabama-speaker-mike
File name:Contract_#_599848.xls
Download: download sample
Signature Dridex
File size:834'560 bytes
First seen:2021-01-14 07:06:31 UTC
Last seen:2021-01-14 08:53:33 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:Ik3hOdsylKlgryzc4bNhZF+E+W2knAzxi8EYjnFKx6qFuVRokoDHZLHM7h:N85E6lqHM7h
TLSH 5405A35A7789C9F2D615DA721C6EC6E02327BC48EE8A53C734947B2EBE35EB44CC1181
Reporter JAMESWT_WT
Tags:Dridex DropBox

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: 35
Application name is Microsoft Excel
Office document is in OLE format
Office document contains VBA Macros
OLE dump

MalwareBazaar was able to identify 58 sections in this file using oledump:

Section IDSection sizeSection name
1107 bytesCompObj
2244 bytesDocumentSummaryInformation
3224 bytesSummaryInformation
4663086 bytesWorkbook
597 bytes_VBA_PROJECT_CUR/BLd0xSzvc/CompObj
6265 bytes_VBA_PROJECT_CUR/BLd0xSzvc/VBFrame
738 bytes_VBA_PROJECT_CUR/BLd0xSzvc/f
80 bytes_VBA_PROJECT_CUR/BLd0xSzvc/o
997 bytes_VBA_PROJECT_CUR/Gx21qvspdKE0bQJ/CompObj
10271 bytes_VBA_PROJECT_CUR/Gx21qvspdKE0bQJ/VBFrame
1138 bytes_VBA_PROJECT_CUR/Gx21qvspdKE0bQJ/f
120 bytes_VBA_PROJECT_CUR/Gx21qvspdKE0bQJ/o
1397 bytes_VBA_PROJECT_CUR/HcfBX_DzAm_1qJ_oJSA/CompObj
14275 bytes_VBA_PROJECT_CUR/HcfBX_DzAm_1qJ_oJSA/VBFrame
1538 bytes_VBA_PROJECT_CUR/HcfBX_DzAm_1qJ_oJSA/f
160 bytes_VBA_PROJECT_CUR/HcfBX_DzAm_1qJ_oJSA/o
171021 bytes_VBA_PROJECT_CUR/PROJECT
18419 bytes_VBA_PROJECT_CUR/PROJECTwm
1997 bytes_VBA_PROJECT_CUR/QTzV2EZ3X084hVI/CompObj
20297 bytes_VBA_PROJECT_CUR/QTzV2EZ3X084hVI/VBFrame
2194 bytes_VBA_PROJECT_CUR/QTzV2EZ3X084hVI/f
224360 bytes_VBA_PROJECT_CUR/QTzV2EZ3X084hVI/o
2311353 bytes_VBA_PROJECT_CUR/VBA/BLd0xSzvc
242092 bytes_VBA_PROJECT_CUR/VBA/GIRmJRgk
2524413 bytes_VBA_PROJECT_CUR/VBA/Gx21qvspdKE0bQJ
264223 bytes_VBA_PROJECT_CUR/VBA/HcfBX_DzAm_1qJ_oJSA
2712550 bytes_VBA_PROJECT_CUR/VBA/QTzV2EZ3X084hVI
281007 bytes_VBA_PROJECT_CUR/VBA/Sheet1
291933 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
303361 bytes_VBA_PROJECT_CUR/VBA/Y3b52_93D_eX5j_BHx0
312047 bytes_VBA_PROJECT_CUR/VBA/YjmoiaMp
326902 bytes_VBA_PROJECT_CUR/VBA/Zha6x_RxfR_LBU_rS9
3319497 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
3414833 bytes_VBA_PROJECT_CUR/VBA/__SRP_0
351152 bytes_VBA_PROJECT_CUR/VBA/__SRP_1
362006 bytes_VBA_PROJECT_CUR/VBA/__SRP_10
37180 bytes_VBA_PROJECT_CUR/VBA/__SRP_11
381166 bytes_VBA_PROJECT_CUR/VBA/__SRP_12
39180 bytes_VBA_PROJECT_CUR/VBA/__SRP_13
40532 bytes_VBA_PROJECT_CUR/VBA/__SRP_2
41156 bytes_VBA_PROJECT_CUR/VBA/__SRP_3
42713 bytes_VBA_PROJECT_CUR/VBA/__SRP_4
43170 bytes_VBA_PROJECT_CUR/VBA/__SRP_5
442936 bytes_VBA_PROJECT_CUR/VBA/__SRP_6
45156 bytes_VBA_PROJECT_CUR/VBA/__SRP_7
46966 bytes_VBA_PROJECT_CUR/VBA/__SRP_8
47156 bytes_VBA_PROJECT_CUR/VBA/__SRP_9
4810281 bytes_VBA_PROJECT_CUR/VBA/__SRP_a
49704 bytes_VBA_PROJECT_CUR/VBA/__SRP_b
506006 bytes_VBA_PROJECT_CUR/VBA/__SRP_c
51300 bytes_VBA_PROJECT_CUR/VBA/__SRP_d
526253 bytes_VBA_PROJECT_CUR/VBA/__SRP_e
53240 bytes_VBA_PROJECT_CUR/VBA/__SRP_f
541364 bytes_VBA_PROJECT_CUR/VBA/dir
5597 bytes_VBA_PROJECT_CUR/Y3b52_93D_eX5j_BHx0/CompObj
56275 bytes_VBA_PROJECT_CUR/Y3b52_93D_eX5j_BHx0/VBFrame
5738 bytes_VBA_PROJECT_CUR/Y3b52_93D_eX5j_BHx0/f
580 bytes_VBA_PROJECT_CUR/Y3b52_93D_eX5j_BHx0/o
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
Hex String333333333333333333333
Hex String9X3333339583333333333 code and P-code are different, this may have been used to hide malicious code
IOCuser32.dllExecutable file name
SuspiciousEnvironMay read system environment variables
SuspiciousOpenMay open a file
SuspiciouswriteMay write to a file (if combined with Open)
SuspiciousPutMay write to a file (if combined with Open)
SuspiciousBinaryMay read or write a binary file (if combined with Open)
SuspicioussavetofileMay create a text file
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
SuspiciousWindowsMay enumerate application windows (if combined with Shell.Application object)
SuspiciousLibMay run code from a DLL
SuspiciousChrMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousChrWMay 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 :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Contract_#_599848.xls
Verdict:
Malicious activity
Analysis date:
2021-01-14 07:16:41 UTC
Tags:
macros macros-on-open

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Searching for the window
Searching for many windows
Launching a process
Creating a process with a hidden window
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with DLL Reference
Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Creates processes via WMI
Document contains an embedded macro with GUI obfuscation
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with base64 encoded strings
Document contains an embedded VBA with many string operations indicating source code obfuscation
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Heuristic
Status:
Malicious
First seen:
2021-01-14 07:07:18 UTC
File Type:
Document
Extracted files:
68
AV detection:
11 of 46 (23.91%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:dridex botnet loader macro macro_on_action
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Office loads VBA resources, possible macro or embedded object present
JavaScript code in executable
Loads dropped DLL
Blocklisted process makes network request
Dridex Loader
Dridex
Process spawned unexpected child process
Malware Config
C2 Extraction:
52.73.70.149:443
8.4.9.152:3786
185.246.87.202:3098
50.116.111.64:5353
Please note that we are no longer able to provide a coverage score for Virus Total.

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

Web download

Dridex

Excel file xls 05b9806f446c71ca46bbddc10176bf28838430bbecb9545cc730fdb93b205476

(this sample)

  
Delivery method
Distributed via web download

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