MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176
SHA3-384 hash: 3d3c3b9f3b3959ed3545eb4edb4c33cdc279905962058f937d62231d925b4a419583619c0358dba41a35b762cc844073
SHA1 hash: 7a21c5d05d050c45492b35b67e0f76de31c0843b
MD5 hash: f91e59f60b96583ba0523eae19390204
humanhash: nuts-december-cardinal-bluebird
File name:f91e59f60b96583ba0523eae19390204.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:140'288 bytes
First seen:2020-12-29 07:36:03 UTC
Last seen:2020-12-29 10:11:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2144f9c12885542d4a4f22de64e840e1 (26 x RedLineStealer, 24 x Smoke Loader, 13 x RaccoonStealer)
ssdeep 3072:YJWRYCJ3ytpWFOk87gleOLl11L9E/mFSolQm5n50QEtWhV:YIJ3ytpxM70poOS50Q80
Threatray 1'027 similar samples on MalwareBazaar
TLSH FFD302AFEE2C4004CBA1B9BDC72B97325331F530C65F460ADDE1A428597172585BEE2B
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
346
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f91e59f60b96583ba0523eae19390204.exe
Verdict:
Suspicious activity
Analysis date:
2020-12-29 07:42:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b319ae01-c744-40d9-a8fc-9378e5197913

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/109702/
Detection(s):
PUA.Win.Packer.Upolyx-12
Create hunting rule

PUA.Win.Packer.Upx-4
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt to an infection source
Deleting of the original file
Enabling autorun by creating a file
Sending an HTTP POST request to an infection source
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/571223
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
Binary contains a suspicious time stamp
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Found C&C like URL pattern
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Renames NTDLL to bypass HIPS
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 334673 Sample: Jekfib0qtW.exe Startdate: 29/12/2020 Architecture: WINDOWS Score: 100 82 gxd3fp7fe7cac6jzn2sac.online 2->82 84 api.ip.sb 2->84 86 4 other IPs or domains 2->86 102 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->102 104 Multi AV Scanner detection for domain / URL 2->104 106 Antivirus detection for URL or domain 2->106 108 7 other signatures 2->108 12 Jekfib0qtW.exe 1 2->12         started        15 uifiibb 1 2->15         started        signatures3 process4 file5 118 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 12->118 120 Renames NTDLL to bypass HIPS 12->120 122 Maps a DLL or memory area into another process 12->122 18 explorer.exe 2 12->18 injected 80 C:\Users\user\AppData\Local\Temp\CC4F.tmp, PE32 15->80 dropped 124 Machine Learning detection for dropped file 15->124 126 Checks if the current machine is a virtual machine (disk enumeration) 15->126 128 Creates a thread in another existing process (thread injection) 15->128 signatures6 process7 dnsIp8 88 gamesforconsoles2222.top 5.2.76.209, 49774, 49814, 80 LITESERVERNL Netherlands 18->88 90 vtdilet.com 18->90 92 5 other IPs or domains 18->92 68 C:\Users\user\AppData\Roaming\uifiibb, PE32 18->68 dropped 70 C:\Users\user\...\uifiibb:Zone.Identifier, ASCII 18->70 dropped 110 Benign windows process drops PE files 18->110 112 Deletes itself after installation 18->112 114 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->114 23 4096.exe 19 18->23         started        file9 signatures10 process11 dnsIp12 96 95.181.152.100, 49783, 49787, 49788 MSKHOSTRU Russian Federation 23->96 98 gxd3fp7fe7cac6jzn2sac.online 95.181.152.177, 49779, 49791, 49792 MSKHOSTRU Russian Federation 23->98 100 192.168.2.1 unknown unknown 23->100 76 C:\Users\user\AppData\...\nethelper[1].dll, PE32 23->76 dropped 78 C:\ProgramData78etHelper\...\nethelper.dll, PE32 23->78 dropped 27 cmd.exe 1 23->27         started        29 cmd.exe 1 23->29         started        31 cmd.exe 1 23->31         started        33 cmd.exe 1 23->33         started        file13 process14 process15 35 rundll32.exe 15 27->35         started        40 conhost.exe 27->40         started        42 conhost.exe 29->42         started        44 timeout.exe 1 29->44         started        46 conhost.exe 31->46         started        48 reg.exe 1 1 31->48         started        50 conhost.exe 33->50         started        52 reg.exe 1 1 33->52         started        dnsIp16 94 udre3kvzatwrx6ues4p2u.top 193.38.55.37, 49790, 49856, 80 SERVERIUS-ASNL Russian Federation 35->94 72 C:\Users\user\AppData\Local\...\nethelper.exe, PE32 35->72 dropped 74 C:\Users\user\AppData\...\nethelper[1].info, PE32 35->74 dropped 116 System process connects to network (likely due to code injection or exploit) 35->116 54 cmd.exe 1 35->54         started        56 cmd.exe 1 35->56         started        58 cmd.exe 1 35->58         started        file17 signatures18 process19 process20 60 conhost.exe 54->60         started        62 schtasks.exe 1 54->62         started        64 conhost.exe 56->64         started        66 schtasks.exe 1 56->66         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176/
Threat name:
Win32.Trojan.Zenpack
Create hunting rule
Status:
Malicious
First seen:
2020-12-29 07:36:09 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Verdict:
suspicious
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eb578a996987c1bc8ef77f0c5f204a115faea3a5d88190fc076dbbc9cb3d98b0
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f0e943a3190bd714808505bef47752c11cf58ae444bfed34d44675ef4a043d8d
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Smoke Loader
+ 1'017 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:raccoon family:smokeloader backdoor discovery keylogger spyware stealer trojan upx
Link:
https://tria.ge/reports/201229-q5g87z8416/
Behaviour
Checks SCSI registry key(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Checks installed software on the system
JavaScript code in executable
Deletes itself
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
AgentTesla Payload
AgentTesla
Raccoon
SmokeLoader
Malware Config
C2 Extraction:
http://vtdilet.com/upload/
http://netvxi.com/upload/
http://tinnys.monster/upload/
Unpacked files
SH256 hash:
c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176
MD5 hash:
f91e59f60b96583ba0523eae19390204
SHA1 hash:
7a21c5d05d050c45492b35b67e0f76de31c0843b
Link:
https://www.unpac.me/results/ce1559ab-30da-45d8-90e0-6dad234f0947/
SH256 hash:
ae1e2df6355341decc532baa1524458fb58b67e035748ebf8cd35d8d773285fd
MD5 hash:
b00a027977eab254a75f8653ca7cbff8
SHA1 hash:
59b76f5c10a4c5ebb5bd24f042fef7bc09305c99
Link:
https://www.unpac.me/results/ce1559ab-30da-45d8-90e0-6dad234f0947/
SH256 hash:
6f2184dfe083c769ca14dc0cbfee5e2615b180aff2e58c6552a79c11a27c0e91
MD5 hash:
fd3cb401704fd1d4070139d45569b743
SHA1 hash:
6dfad0f23deaae5a3b12e7f90217d9f8a8376509
Link:
https://www.unpac.me/results/ce1559ab-30da-45d8-90e0-6dad234f0947/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.34
Link:
https://yomi.yoroi.company/submissions/c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176

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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/

File information

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

Web download

Smoke Loader

Executable exe c2fb724acbf58e1196bc979ddc11e835baa40797c62ac88ac0e5b3f51f829176

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/943588/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/109702/

Comments