MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa50f1a4305088ab4a86a454cc59531c2cbe35a37486e5000e27d9e3a031c750. 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

SHA256 hash: fa50f1a4305088ab4a86a454cc59531c2cbe35a37486e5000e27d9e3a031c750
SHA3-384 hash: a3b1e041fdd9e7b31e28d1be02ab871b98525556c9efbee8c012f983bdc9c0d87cc4569221ea95a831117c18cbc923de
SHA1 hash: f5e7a5cd8f238b09d51a454d66d6635d3204a841
MD5 hash: 441300346e958e9421c46eea9bf82f22
humanhash: romeo-undress-beer-beryllium
File name:441300346e958e9421c46eea9bf82f22.exe
Download: download sample
Signature Smoke Loader
File size:842'791 bytes
First seen:2022-06-15 18:17:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:jZOPZkDUbda0P1uPR9t4k/MfFwQglwHS:jww0tuPR9l/4FwQgaHS
TLSH T1DC05024D6346D459E8ACA9F04621EF991ED7FF290C78E6CD6083F5FFE5B1A9A3040206
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c2d1cccccccc748c (4 x Smoke Loader)
Reporter abuse_ch
Tags:Dofoil exe Smoke Loader

Intelligence


File Origin
# of uploads :
1
# of downloads :
380
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Running batch commands
Launching a process
Creating a file in the %AppData% directory
Creating a file
Creating a process from a recently created file
Searching for synchronization primitives
Сreating synchronization primitives
Enabling the 'hidden' option for recently created files
DNS request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe obfuscated overlay packed
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
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Injects a PE file into a foreign processes
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 646587 Sample: oLABBEqyhM.exe Startdate: 15/06/2022 Architecture: WINDOWS Score: 92 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected SmokeLoader 2->57 59 .NET source code contains potential unpacker 2->59 61 Machine Learning detection for sample 2->61 7 oLABBEqyhM.exe 3 2->7         started        11 sargboa.exe 3 2->11         started        13 sargboa.exe 2 2->13         started        process3 file4 49 C:\Users\user\AppData\...\oLABBEqyhM.exe.log, ASCII 7->49 dropped 65 Writes to foreign memory regions 7->65 67 Allocates memory in foreign processes 7->67 69 Injects a PE file into a foreign processes 7->69 15 cmd.exe 3 7->15         started        18 cmd.exe 1 7->18         started        21 conhost.exe 7->21         started        33 2 other processes 7->33 71 Multi AV Scanner detection for dropped file 11->71 73 Machine Learning detection for dropped file 11->73 23 cmd.exe 1 11->23         started        25 cmd.exe 11->25         started        27 vbc.exe 11->27         started        29 cmd.exe 1 13->29         started        31 cmd.exe 1 13->31         started        signatures5 process6 file7 51 C:\Users\user\AppData\Roaming\sargboa.exe, PE32 15->51 dropped 53 C:\Users\user\...\sargboa.exe:Zone.Identifier, ASCII 15->53 dropped 35 conhost.exe 15->35         started        63 Uses schtasks.exe or at.exe to add and modify task schedules 18->63 37 conhost.exe 18->37         started        39 schtasks.exe 1 18->39         started        41 conhost.exe 23->41         started        43 conhost.exe 29->43         started        45 schtasks.exe 1 29->45         started        47 conhost.exe 31->47         started        signatures8 process9
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-15 01:02:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
106
AV detection:
16 of 41 (39.02%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Executes dropped EXE
Unpacked files
SH256 hash:
8e7229cfb1a200a7683503f696501bb678e6253044abcbcfc26da5c885f98622
MD5 hash:
77deff81a6f784c45e4a947c256470d7
SHA1 hash:
953c418d12e68952318d926c527b8c0eeb9dc0c1
Detections:
win_smokeloader_a2
SH256 hash:
95024bf1c352db9c9fd3c41adc6ec4d4d4653fd12665884c9ef836e62be464f4
MD5 hash:
f6a1e4887d982fc85291adfac080fccd
SHA1 hash:
836224b628be409e5603a6f274c33c73458aff8c
SH256 hash:
fa50f1a4305088ab4a86a454cc59531c2cbe35a37486e5000e27d9e3a031c750
MD5 hash:
441300346e958e9421c46eea9bf82f22
SHA1 hash:
f5e7a5cd8f238b09d51a454d66d6635d3204a841
Malware family:
SmokeLoader
Verdict:
Malicious
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:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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