MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2ec35da14989692e77df25d56c7b1d43a3e93a72ec2fc7cce67b2fa448744752. 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: 6


Maldoc score: 5


Intelligence 6 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2ec35da14989692e77df25d56c7b1d43a3e93a72ec2fc7cce67b2fa448744752
SHA3-384 hash: d12d810375857a48b789ee0d6be62897330ae1b149b6faf254493ed44656cae501ff7edd1ed1fced39468ddeeef89244
SHA1 hash: e4eef787b94f80e5374a2058cafc6a37d3fa2c0f
MD5 hash: 1b109efade90ace7d953507adb1f1563
humanhash: music-bakerloo-skylark-enemy
File name:Inv_121314_42664.xlsm
Download: download sample
Signature Dridex
Create hunting rule
File size:27'253 bytes
First seen:2020-11-02 13:00:49 UTC
Last seen:2020-11-09 05:18:48 UTC
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 384:ng/FifnjNZdOUlM9zhBNHYgbY19rfKNmE6DRzMmr0l2a62MOo4R/9R9Wxhu4C:9fnExagcemE6DRQmrMTMSRVR9Wjc
TLSH 17C2C010E250F81DD73BA93DA24C14F0E12DB9819AD7628F1581F19F9BE26D7138778E
Reporter GovCERT_CH
Tags:Dridex xlsm

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: 5
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
AutoExecepsons_LayoutRuns when the file is opened and ActiveX objects trigger events VBA
SuspiciousChrMay 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)

Intelligence

File Origin
# of uploads :
241
# of downloads :
359
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.VBA.Heur2.Dridex.5.7721E7B0.Gen.1524.28343.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Verdict:
MALICIOUS
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/518148
Signature
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Downloads files with wrong headers with respect to MIME Content-Type
Machine Learning detection for dropped file
Multi AV Scanner detection for submitted file
Office process drops PE file
Sigma detected: BlueMashroom DLL Load
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Regsvr32 Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 308174 Sample: Inv_121314_42664.xlsm Startdate: 02/11/2020 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Document exploit detected (drops PE files) 2->46 48 6 other signatures 2->48 7 EXCEL.EXE 195 42 2->7         started        process3 dnsIp4 36 milagricenko-dev.uzor.group 78.46.16.59, 49167, 80 HETZNER-ASDE Germany 7->36 38 kzk.kx1.in 13.233.11.126, 49168, 80 AMAZON-02US United States 7->38 22 C:\Users\user\AppData\Local\Temp\yuxsay._QA, PE32 7->22 dropped 24 C:\Users\user\AppData\Local\...\esfzezpm._JS, PE32 7->24 dropped 26 C:\Users\user\AppData\...\p8myj0xv[1].rar, PE32 7->26 dropped 28 2 other malicious files 7->28 dropped 50 Document exploit detected (process start blacklist hit) 7->50 52 Document exploit detected (UrlDownloadToFile) 7->52 12 regsvr32.exe 7->12         started        14 regsvr32.exe 7->14         started        file5 signatures6 process7 process8 16 regsvr32.exe 11 12->16         started        20 regsvr32.exe 9 14->20         started        dnsIp9 30 91.238.160.158, 18443, 49172, 49176 PULSANT-ASGB United Kingdom 16->30 32 195.154.237.245, 443, 49169, 49174 OnlineSASFR France 16->32 34 2 other IPs or domains 16->34 40 System process connects to network (likely due to code injection or exploit) 16->40 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2ec35da14989692e77df25d56c7b1d43a3e93a72ec2fc7cce67b2fa448744752/
Threat name:
Document-Word.Infostealer.Dridex
Create hunting rule
Status:
Malicious
First seen:
2020-11-02 12:53:26 UTC
File Type:
Document
Extracted files:
37
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=f3bv3ikjrfus4567exkwy6y5ior6sots5qx4pthgpmx2isdui5ja._file
Result
Malware family:
dridex
Create hunting rule
Score:
  10/10
Tags:
family:dridex botnet cryptone loader packer
Link:
https://tria.ge/reports/201102-1ldr4jfsyn/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
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
Loads dropped DLL
CryptOne packer
Dridex Loader
Dridex
Process spawned unexpected child process
Malware Config
C2 Extraction:
195.154.237.245:443
46.105.131.73:8172
91.238.160.158:18443
213.183.128.99:3786
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:ach_Dridex_xlsm_20200528_2
Create hunting rule
Author:abuse.ch
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: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
Rule name:win_dridex_loader_v2
Create hunting rule
Author:Johannes Bader @viql
Description:detects some Dridex loaders

File information

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

Malspam

Dridex

Excel file xlsm 2ec35da14989692e77df25d56c7b1d43a3e93a72ec2fc7cce67b2fa448744752

(this sample)

  
Dropped by
Dridex
  
Delivery method
Distributed via e-mail attachment

Comments