MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b65813f3d3735aafe026cf0a2993db4e1da3dce321a638c56350fbffdc0c0e9. 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



Backdoor.TeamViewer


Vendor detections: 17


Intelligence 17 IOCs YARA 15 File information Comments

SHA256 hash: 3b65813f3d3735aafe026cf0a2993db4e1da3dce321a638c56350fbffdc0c0e9
SHA3-384 hash: 1bc030226bc4a854fb3fd0683f23894a5956ddbd2e35479d5d4db7dcf40851e2d88eed51c0ee01426ec6e3f3d18c54dc
SHA1 hash: 72099b944137f88709780ec3e1f155cc4f45ce91
MD5 hash: 277a40695913e1f78661c3c75a7616f1
humanhash: lake-spring-avocado-sink
File name:277a40695913e1f78661c3c75a7616f1.exe
Download: download sample
Signature Backdoor.TeamViewer
File size:1'584'128 bytes
First seen:2023-10-23 15:50:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 646167cce332c1c252cdcb1839e0cf48 (8'473 x RedLineStealer, 4'851 x Amadey, 290 x Smoke Loader)
ssdeep 49152:3I2qQY9em2fjeFqE6QCPaEbbdWxwzLgaV+1:4T9YaF6QCiEH2e8a4
Threatray 2'436 similar samples on MalwareBazaar
TLSH T19D752312B1F99972E4B83BB02AFB03D3113B3C72197A87236692981E1D73794C835767
TrID 70.4% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
11.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
5.9% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
3.7% (.EXE) Win64 Executable (generic) (10523/12/4)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon f8f0f4c8c8c8d8f0 (8'803 x RedLineStealer, 5'078 x Amadey, 288 x Smoke Loader)
Reporter abuse_ch
Tags:Backdoor.TeamViewer exe


Avatar
abuse_ch
Backdoor.TeamViewer C2:
77.91.124.86:19084

Intelligence


File Origin
# of uploads :
1
# of downloads :
308
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://109.107.182.2/race/bus50.exe
Verdict:
Malicious activity
Analysis date:
2023-10-23 15:35:31 UTC
Tags:
stealc stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Сreating synchronization primitives
Launching a service
Creating a file
Creating a window
Launching cmd.exe command interpreter
Running batch commands
Blocking the Windows Defender launch
Disabling the operating system update service
Unauthorized injection to a system process
Enabling autorun by creating a file
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
89%
Tags:
advpack anti-vm CAB control explorer installer lolbin packed packed rundll32 setupapi sfx shell32
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:
Amadey, LummaC Stealer, Mystic Stealer,
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Found malware configuration
Injects a PE file into a foreign processes
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
Modifies windows update settings
Multi AV Scanner detection for dropped file
PE file has a writeable .text section
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
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)
Writes to foreign memory regions
Yara detected Amadey bot
Yara detected Amadeys stealer DLL
Yara detected LummaC Stealer
Yara detected Mystic Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330712 Sample: x4KckDa8si.exe Startdate: 23/10/2023 Architecture: WINDOWS Score: 100 136 raw.githubusercontent.com 2->136 138 youtube-ui.l.google.com 2->138 140 13 other IPs or domains 2->140 172 Snort IDS alert for network traffic 2->172 174 Found malware configuration 2->174 176 Malicious sample detected (through community Yara rule) 2->176 178 16 other signatures 2->178 15 x4KckDa8si.exe 1 4 2->15         started        18 svchost.exe 2->18         started        21 svchost.exe 1 2->21         started        23 11 other processes 2->23 signatures3 process4 dnsIp5 132 C:\Users\user\AppData\Local\...\Uq4dk55.exe, PE32 15->132 dropped 134 C:\Users\user\AppData\Local\...\6UR6LR7.exe, PE32 15->134 dropped 26 Uq4dk55.exe 1 4 15->26         started        168 Changes security center settings (notifications, updates, antivirus, firewall) 18->168 170 Query firmware table information (likely to detect VMs) 21->170 148 127.0.0.1 unknown unknown 23->148 30 Conhost.exe 23->30         started        file6 signatures7 process8 file9 112 C:\Users\user\AppData\Local\...\fM8YI22.exe, PE32 26->112 dropped 114 C:\Users\user\AppData\Local\...\5ib0py7.exe, PE32 26->114 dropped 208 Antivirus detection for dropped file 26->208 210 Machine Learning detection for dropped file 26->210 32 fM8YI22.exe 1 4 26->32         started        signatures10 process11 file12 90 C:\Users\user\AppData\Local\...\uK6hs56.exe, PE32 32->90 dropped 92 C:\Users\user\AppData\Local\...\4WB006Ds.exe, PE32 32->92 dropped 164 Antivirus detection for dropped file 32->164 166 Machine Learning detection for dropped file 32->166 36 uK6hs56.exe 1 4 32->36         started        signatures13 process14 file15 98 C:\Users\user\AppData\Local\...\za5wv72.exe, PE32 36->98 dropped 100 C:\Users\user\AppData\Local\...\3KW64He.exe, PE32 36->100 dropped 39 3KW64He.exe 36->39         started        42 za5wv72.exe 1 4 36->42         started        process16 file17 184 Multi AV Scanner detection for dropped file 39->184 186 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 39->186 188 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 39->188 190 3 other signatures 39->190 45 explorer.exe 39->45 injected 116 C:\Users\user\AppData\Local\...\2Qu1091.exe, PE32 42->116 dropped 118 C:\Users\user\AppData\Local\...\1Zq70jc0.exe, PE32 42->118 dropped 50 1Zq70jc0.exe 42->50         started        52 2Qu1091.exe 12 42->52         started        signatures18 process19 dnsIp20 156 5.42.65.80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 45->156 158 77.91.68.249 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 45->158 162 5 other IPs or domains 45->162 120 C:\Users\user\AppData\Local\Temp\F5F.exe, PE32 45->120 dropped 122 C:\Users\user\AppData\Local\Temp\83D3.exe, PE32+ 45->122 dropped 124 C:\Users\user\AppData\Local\Temp\7451.exe, PE32 45->124 dropped 126 12 other malicious files 45->126 dropped 212 System process connects to network (likely due to code injection or exploit) 45->212 214 Benign windows process drops PE files 45->214 54 F5F.exe 45->54         started        58 1732.exe 45->58         started        61 1B5A.exe 45->61         started        65 3 other processes 45->65 216 Multi AV Scanner detection for dropped file 50->216 218 Contains functionality to inject code into remote processes 50->218 220 Writes to foreign memory regions 50->220 222 2 other signatures 50->222 63 AppLaunch.exe 9 1 50->63         started        160 193.233.255.73 FREE-NET-ASFREEnetEU Russian Federation 52->160 file21 signatures22 process23 dnsIp24 102 C:\Users\user\AppData\Local\...\id8By9Dv.exe, PE32 54->102 dropped 104 C:\Users\user\AppData\Local\...\6XD39qH.exe, PE32 54->104 dropped 192 Antivirus detection for dropped file 54->192 194 Machine Learning detection for dropped file 54->194 67 id8By9Dv.exe 54->67         started        154 77.91.124.86 ECOTEL-ASRU Russian Federation 58->154 196 Multi AV Scanner detection for dropped file 58->196 198 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 58->198 200 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 58->200 106 C:\Users\user\AppData\Local\...\explothe.exe, PE32 61->106 dropped 202 Modifies windows update settings 63->202 204 Disable Windows Defender notifications (registry) 63->204 206 Disable Windows Defender real time protection (registry) 63->206 71 chrome.exe 65->71         started        74 chrome.exe 65->74         started        76 conhost.exe 65->76         started        file25 signatures26 process27 dnsIp28 94 C:\Users\user\AppData\Local\...\Kb2BD0Wc.exe, PE32 67->94 dropped 96 C:\Users\user\AppData\Local\...\5XA22ZT.exe, PE32 67->96 dropped 180 Antivirus detection for dropped file 67->180 182 Machine Learning detection for dropped file 67->182 78 Kb2BD0Wc.exe 67->78         started        150 192.168.2.7 unknown unknown 71->150 152 239.255.255.250 unknown Reserved 71->152 82 chrome.exe 71->82         started        85 chrome.exe 74->85         started        file29 signatures30 process31 dnsIp32 128 C:\Users\user\AppData\Local\...\vR4ee6QZ.exe, PE32 78->128 dropped 130 C:\Users\user\AppData\Local\...\4Ep736xT.exe, PE32 78->130 dropped 224 Antivirus detection for dropped file 78->224 226 Machine Learning detection for dropped file 78->226 87 vR4ee6QZ.exe 78->87         started        142 clients.l.google.com 142.251.163.139 GOOGLEUS United States 82->142 144 www.google.com 142.251.163.147 GOOGLEUS United States 82->144 146 10 other IPs or domains 82->146 file33 signatures34 process35 file36 108 C:\Users\user\AppData\Local\...\er9kg6Bj.exe, PE32 87->108 dropped 110 C:\Users\user\AppData\Local\...\3IA9Xl16.exe, PE32 87->110 dropped
Threat name:
Win32.Spyware.RedLine
Status:
Malicious
First seen:
2023-10-23 15:51:05 UTC
File Type:
PE (Exe)
Extracted files:
192
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
family:amadey family:asyncrat family:dcrat family:glupteba family:redline family:smokeloader botnet:default botnet:grome botnet:kinza botnet:up3 botnet:yt&team cloud backdoor brand:google discovery dropper evasion infostealer loader persistence phishing rat spyware stealer trojan upx
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Runs net.exe
Suspicious behavior: CmdExeWriteProcessMemorySpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
Windows security modification
Blocklisted process makes network request
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Stops running service(s)
Async RAT payload
Amadey
AsyncRat
DcRat
Detected google phishing page
Glupteba
Glupteba payload
Modifies Windows Defender Real-time Protection settings
RedLine
RedLine payload
SmokeLoader
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
http://77.91.68.29/fks/
77.91.124.86:19084
http://77.91.124.1/theme/index.php
185.216.70.238:37515
http://host-file-host6.com/
http://host-host-file8.com/
89.23.100.93:4449
Unpacked files
SH256 hash:
160ea596dea538000394fde4ba2d40fd2be5ab50037a77ba3000e927bff84ef1
MD5 hash:
22b50c95b39cbbdb00d5a4cd3d4886bd
SHA1 hash:
db8326c4fad0064ce3020226e8556e7cce8ce04e
SH256 hash:
4971c6f1b9f64f14b548857d7dd3ac1d65d2521fbf471d7b39bd0ccebd40dd20
MD5 hash:
b1ed61a947f71df57128cd269ab9e32c
SHA1 hash:
5cbdefbd387105f7ce754274f16379b5bcdeef6b
SH256 hash:
03c8d975b30faa0bcdefcaee64e1294d53dbdb29477e2062de473493fafa4d59
MD5 hash:
5da13856ad9188c5d9adfb2829b9b3a1
SHA1 hash:
471677f4eba0fc334095dfb36c09bc8f9fa7480f
SH256 hash:
3b65813f3d3735aafe026cf0a2993db4e1da3dce321a638c56350fbffdc0c0e9
MD5 hash:
277a40695913e1f78661c3c75a7616f1
SHA1 hash:
72099b944137f88709780ec3e1f155cc4f45ce91
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:detect_Redline_Stealer
Author:Varp0s
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defedner features
Rule name:mal_healer
Author:Nikos 'n0t' Totosis
Description:Payload disabling Windows AV
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:redline_stealer_1
Author:Nikolaos 'n0t' Totosis
Description:RedLine Stealer Payload
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:UPX20030XMarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Author:malware-lu

File information


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

Web download

Backdoor.TeamViewer

Executable exe 3b65813f3d3735aafe026cf0a2993db4e1da3dce321a638c56350fbffdc0c0e9

(this sample)

  
Delivery method
Distributed via web download

Comments