MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59. 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


Smoke Loader


Vendor detections: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59
SHA3-384 hash: b5c7daee5d98676d1020a7293512d83899e7bf7fab88e9a334fb20f79359a534fcfb9d041d0121c33b646e3825450802
SHA1 hash: 0d5df0d0664cd51d581d5db4d51535d0e966222a
MD5 hash: e5b6a4e53ef619a9743efaee00366849
humanhash: utah-florida-ack-eleven
File name:PO.doc
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:3'518'461 bytes
First seen:2020-12-22 06:37:13 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 24576:aCos8bCos8bCos8bCos8bCos8bCos8bCos8bCos8bCos8bCos8bCos8bCos8bCoZ:YhhhhhhhhhhhhhhhhhhhhhhhhB
TLSH 21F512B0BB2626C2D4FE13DF5519BDC16223EB378DB3E0C8758DE93A6A3B540D518486
Reporter abuse_ch
Tags:doc Smoke Loader


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: slot0.lzjlhy.com
Sending IP: 45.95.169.216
From: Abrams Thad <info@lzjlhy.com>
Subject: Re: Re : Proforma Invoice attached on PO#172767
Attachment: PO.doc

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 dump

Intelligence

File Origin
# of uploads :
1
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO.doc
Verdict:
Malicious activity
Analysis date:
2020-12-22 06:42:02 UTC
Tags:
ole-embedded opendir trojan exploit CVE-2017-11882 loader smoke stealer
Link:
https://app.any.run/tasks/741c16eb-abc0-41de-befa-5d78edafd0be

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Sending an HTTP GET request
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59/results/dashboard
Result
Verdict:
MALICIOUS
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/567910
Signature
Antivirus detection for dropped file
Benign windows process drops PE files
Changes memory attributes in foreign processes to executable or writable
Connects to a URL shortener service
Creates a thread in another existing process (thread injection)
Downloads files with wrong headers with respect to MIME Content-Type
Drops PE files to the user root directory
Found strings related to Crypto-Mining
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hijacks the control flow in another process
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file has a writeable .text section
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 333029 Sample: PO.doc Startdate: 22/12/2020 Architecture: WINDOWS Score: 100 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for dropped file 2->71 73 Multi AV Scanner detection for dropped file 2->73 75 14 other signatures 2->75 9 EQNEDT32.EXE 13 2->9         started        14 taskeng.exe 1 2->14         started        16 WINWORD.EXE 292 25 2->16         started        process3 dnsIp4 65 bit.ly 67.199.248.10, 49165, 80 GOOGLE-PRIVATE-CLOUDUS United States 9->65 67 fishing4tackle.com 213.190.6.55, 49166, 49168, 80 AS-HOSTINGERLT Germany 9->67 57 C:\Users\user\AppData\Local\...\vipe[1].jpg, PE32 9->57 dropped 59 C:\Users\Public\7654333.exe, PE32 9->59 dropped 93 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 9->93 18 7654333.exe 9->18         started        21 rjvdwujh.exe 14->21         started        file5 signatures6 process7 signatures8 77 Antivirus detection for dropped file 18->77 79 Multi AV Scanner detection for dropped file 18->79 81 Machine Learning detection for dropped file 18->81 23 explorer.exe 4 18->23 injected 83 Maps a DLL or memory area into another process 21->83 process9 dnsIp10 61 www.msftncsi.com 23->61 63 vipengland.com 23->63 55 C:\Users\user\AppData\...\rjvdwujh.exe, PE32 23->55 dropped 85 Benign windows process drops PE files 23->85 87 Injects code into the Windows Explorer (explorer.exe) 23->87 89 Writes to foreign memory regions 23->89 91 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->91 28 explorer.exe 23->28         started        31 explorer.exe 23->31         started        33 explorer.exe 23->33         started        35 13 other processes 23->35 file11 signatures12 process13 signatures14 95 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 28->95 97 Hijacks the control flow in another process 28->97 99 Changes memory attributes in foreign processes to executable or writable 28->99 37 UfpOMsWDeIlDiYAFSjjzdklR.exe 28->37 injected 39 UfpOMsWDeIlDiYAFSjjzdklR.exe 28->39 injected 51 4 other processes 28->51 101 Writes to foreign memory regions 31->101 103 Maps a DLL or memory area into another process 31->103 105 Creates a thread in another existing process (thread injection) 31->105 41 UfpOMsWDeIlDiYAFSjjzdklR.exe 31->41 injected 43 UfpOMsWDeIlDiYAFSjjzdklR.exe 31->43 injected 53 4 other processes 31->53 45 dwm.exe 33->45 injected 47 conhost.exe 33->47 injected 107 Tries to steal Mail credentials (via file access) 35->107 109 Tries to harvest and steal browser information (history, passwords, etc) 35->109 49 taskhost.exe 35->49 injected process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-12-22 06:38:06 UTC
AV detection:
8 of 48 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7vbs6qzrfncgkx3doqvpz547xsbqueyxpptsem76djrchbwyt5mq._file
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader backdoor trojan
Link:
https://tria.ge/reports/201222-trn5b8xfmj/
Behaviour
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Maps connected drives based on registry
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
SmokeLoader
Malware Config
C2 Extraction:
http://vipengland.com/2/
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/fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59

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:ClamAV_Emotet_String_Aggregate
Create hunting rule
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_8759_2
Create hunting rule
Author:ditekSHen
Description:detects CVE-2017-8759 weaponized RTF documents.
Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Malspam

Smoke Loader

Word file doc fd432f43312b44655f63742afcf79fbc830a13177be72233fe1a622386d89f59

(this sample)

  
Delivery method
Distributed via e-mail attachment

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