MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342
SHA3-384 hash: ac8b9e6d5243cb50296b62caea85e3b2d13846527f38536dc32b5ae42a911e989b00b47b8984d01c97565f8fa9b94946
SHA1 hash: 9ee10f82d764ec37101c97b7fea31f830b2799b7
MD5 hash: 6cad56f004d46b170fb80c5c9864905e
humanhash: magnesium-tennessee-november-green
File name:6cad56f004d46b170fb80c5c9864905e
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:390'144 bytes
First seen:2022-04-28 07:16:28 UTC
Last seen:2022-04-28 07:42:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:cAnu7LWJ8DIPXf8H1MVkKy4ZyK1DgfyuwQEAGBvJ9Ie40TGYnFYRUcgGBiG8:GLWJetHWyXItrphJ6/uGYnORUct
TLSH T19C84010DD26DAB02DA3FCBFAA538270083B579257512FFCA8CC1B8E519357D18841EA7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon f0e8e8ccccc4e8f0 (4 x AgentTesla, 3 x Formbook, 2 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe Smoke Loader

Intelligence

File Origin
# of uploads :
2
# of downloads :
273
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267470/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.32709.8091.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
mokes obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/626a3f8662b1ae4451b80200/reports/2353f0d3-3425-4d23-a798-f00fca9f44af/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6582b4c1-3945-4ec9-91da-127008a3c27b
Result
Threat name:
SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
bank.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984603
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Benign windows process drops PE files
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if browser processes are running
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to compare user and computer (likely to detect sandboxes)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Found evasive API chain (may stop execution after checking mutex)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Execution of Suspicious File Type Extension
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected SmokeLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 617098 Sample: 8l9Chy2CcE Startdate: 28/04/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 7 other signatures 2->50 8 8l9Chy2CcE.exe 3 2->8         started        11 ajrfitb 3 2->11         started        process3 file4 38 C:\Users\user\AppData\...\8l9Chy2CcE.exe.log, ASCII 8->38 dropped 14 8l9Chy2CcE.exe 8->14         started        68 Multi AV Scanner detection for dropped file 11->68 70 Machine Learning detection for dropped file 11->70 17 ajrfitb 11->17         started        signatures5 process6 signatures7 72 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Checks if the current machine is a virtual machine (disk enumeration) 14->76 19 explorer.exe 3 14->19 injected 78 Creates a thread in another existing process (thread injection) 17->78 process8 dnsIp9 40 eyecosl.top 94.103.80.201, 49788, 49791, 80 VDSINA-ASRU Russian Federation 19->40 34 C:\Users\user\AppData\Roaming\ajrfitb, PE32 19->34 dropped 36 C:\Users\user\...\ajrfitb:Zone.Identifier, ASCII 19->36 dropped 52 Benign windows process drops PE files 19->52 54 Injects code into the Windows Explorer (explorer.exe) 19->54 56 Deletes itself after installation 19->56 58 2 other signatures 19->58 24 explorer.exe 12 19->24         started        28 explorer.exe 19->28         started        30 explorer.exe 19->30         started        32 3 other processes 19->32 file10 signatures11 process12 dnsIp13 42 eyecosl.top 24->42 60 System process connects to network (likely due to code injection or exploit) 24->60 62 Found evasive API chain (may stop execution after checking mutex) 24->62 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->64 66 4 other signatures 24->66 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-28 07:17:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader backdoor trojan
Link:
https://tria.ge/reports/220428-h4clhabch4/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
SmokeLoader
Malware Config
C2 Extraction:
http://eyecosl.top/
http://bullions.top/
Unpacked files
SH256 hash:
fb022358880ede3cd9ee11f209cfcff144a5fa6aad41ca5ed9b1a08176eda177
MD5 hash:
54c436f883b07fdbed63d9312ec85058
SHA1 hash:
9ebc35267f181fe0d8ca21a406affbe5c33db1ea
Link:
https://www.unpac.me/results/9d7b64bd-c285-490a-8f1d-7d0d22ee0307/
SH256 hash:
213013bc9d127ace49c7cbb6dbddd5bffd184ab487867f42f4bcdd3265f55b7d
MD5 hash:
0d9079b1926bbdb841ddfdf4d87e850d
SHA1 hash:
d82b73f9bd6babb8159ea9748613ac3f6da085bc
Link:
https://www.unpac.me/results/9d7b64bd-c285-490a-8f1d-7d0d22ee0307/
SH256 hash:
6cfa21cc65a7bc46f51d4ce8a82c81631d22466df731198e27392662a07ebfa9
MD5 hash:
c64ef7c67624a0814646b475dbfe1fde
SHA1 hash:
eb5d1582a5626199ab04c2afe0b5eae146bbf309
Link:
https://www.unpac.me/results/9d7b64bd-c285-490a-8f1d-7d0d22ee0307/
SH256 hash:
92fc621e886ad486195efe1b074a5186c27599e3dd4d71c72cae3078b8660ae2
MD5 hash:
e80503550a2aa077f62f09c7dc6be7e4
SHA1 hash:
f93e86c149eac50b611a1f9a7b59f5d81026262c
Link:
https://www.unpac.me/results/9d7b64bd-c285-490a-8f1d-7d0d22ee0307/
SH256 hash:
7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342
MD5 hash:
6cad56f004d46b170fb80c5c9864905e
SHA1 hash:
9ee10f82d764ec37101c97b7fea31f830b2799b7
Link:
https://www.unpac.me/results/9d7b64bd-c285-490a-8f1d-7d0d22ee0307/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7c70823efc47/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

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 7c70823efc4747cc695fc2377da1589c52b16f70ded3deb0994ee73fa0a81342

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2168779/
Cape
Cape
https://www.capesandbox.com/analysis/267470/

Comments


Avatar
zbet commented on 2022-04-28 07:16:35 UTC

url : hxxp://107.172.13.157/75/vbc.exe