MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd. 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


Tofsee


Vendor detections: 17


Intelligence 17 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd
SHA3-384 hash: c825403710145a7168e0b7cb7b7f1aa60bd50a11f1d9ad5e75b8fbe858bcd300bc3049ac9ba3d9127029802bfce76e84
SHA1 hash: 4526478e003aec9d15d9d2d218d6928bfd60d1a2
MD5 hash: 981e42260e883bb8de9fbbc02e43c076
humanhash: vegan-berlin-london-neptune
File name:250427-19fjfsvlz8.bin
Download: download sample
Signature Tofsee
Create hunting rule
File size:12'410'714 bytes
First seen:2025-04-27 22:26:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash db33f3adbfb2946d84eba5838cc0ccc2 (2 x ArkeiStealer, 2 x Tofsee)
ssdeep 6144:s8CHoLztEhfDI8KGNcFwH4wXIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII9:s8CHoLOhf0DGNcL
TLSH T11DC65C29466D94FFC47D02FE5A083F14ABEDEEF0C480967B56B191C74C23A075AEA50B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon e0e8e8e8aa66a499 (32 x RaccoonStealer, 23 x RedLineStealer, 14 x ArkeiStealer)
Reporter UNP4CK
Tags:Tofsee

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
250427-19fjfsvlz8.bin
Verdict:
Malicious activity
Analysis date:
2025-04-27 22:28:33 UTC
Tags:
auto-reg
Link:
https://app.any.run/tasks/4d61d09e-4bae-4bc0-9caf-b64ea616cb0c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Tofsee
Create hunting rule
Link:
https://www.capesandbox.com/analysis/4463/
Detection(s):
Win.Packed.Loki-10043448-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=680eb25bc8b2e86d0ac36da2
Tags:
phishing tofsee emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a service
Creating a file
Launching the process to change the firewall settings
Creating a process from a recently created file
Launching a service
Launching the default Windows debugger (dwwin.exe)
Enabling autorun for a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypt entropy genheur infostealer loki masquerade microsoft_visual_cc overlay packed packed packer_detected rat smokeloader virtual
Link:
https://www.filescan.io/uploads/680eaf3846fe05453ca831cf/reports/b75d923b-fff6-4b36-ae97-38c170684443/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd
Malware family:
Tofsee
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9ad2ea44-398e-494b-8f2b-012e07cc5876
Result
Threat name:
Tofsee
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1675682
Signature
Adds extensions / path to Windows Defender exclusion list (Registry)
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops executables to the windows directory (C:\Windows) and starts them
Found API chain indicative of debugger detection
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious New Service Creation
System process connects to network (likely due to code injection or exploit)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Tofsee
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1675682 Sample: 250427-19fjfsvlz8.bin.exe Startdate: 28/04/2025 Architecture: WINDOWS Score: 100 57 refabyd.info 2->57 59 defeatwax.ru 2->59 61 7 other IPs or domains 2->61 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus detection for URL or domain 2->73 75 9 other signatures 2->75 8 ztcmzcht.exe 2->8         started        11 250427-19fjfsvlz8.bin.exe 2 2->11         started        14 svchost.exe 2->14         started        16 5 other processes 2->16 signatures3 process4 file5 85 Detected unpacking (changes PE section rights) 8->85 87 Detected unpacking (overwrites its own PE header) 8->87 89 Found API chain indicative of debugger detection 8->89 97 3 other signatures 8->97 18 svchost.exe 1 8->18         started        22 WerFault.exe 2 8->22         started        55 C:\Users\user\AppData\Local\...\ztcmzcht.exe, PE32 11->55 dropped 91 Uses netsh to modify the Windows network and firewall settings 11->91 93 Modifies the windows firewall 11->93 24 cmd.exe 1 11->24         started        27 netsh.exe 2 11->27         started        29 cmd.exe 2 11->29         started        37 4 other processes 11->37 95 Changes security center settings (notifications, updates, antivirus, firewall) 14->95 31 MpCmdRun.exe 1 14->31         started        33 WerFault.exe 2 16->33         started        35 WerFault.exe 2 16->35         started        signatures6 process7 dnsIp8 63 67.195.228.111, 25 YAHOO-GQ1US United States 18->63 65 52.101.9.12, 25 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->65 67 4 other IPs or domains 18->67 77 System process connects to network (likely due to code injection or exploit) 18->77 79 Deletes itself after installation 18->79 81 Adds extensions / path to Windows Defender exclusion list (Registry) 18->81 83 Opens the same file many times (likely Sandbox evasion) 18->83 53 C:\Windows\SysWOW64\...\ztcmzcht.exe (copy), PE32 24->53 dropped 39 conhost.exe 24->39         started        41 conhost.exe 27->41         started        43 conhost.exe 29->43         started        45 conhost.exe 31->45         started        47 conhost.exe 37->47         started        49 conhost.exe 37->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2025-04-23 04:37:11 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fz5wm2prv5f2l2csmgyq3xw4oe432j4skkxy4pqsdydgdef5ep6q._file
Verdict:
malicious
Label(s):
tofsee
Create hunting rule
shellcode_loader_002
Create hunting rule
Similar samples:
error
Tofsee
Result
Malware family:
tofsee
Create hunting rule
Score:
  10/10
Tags:
family:tofsee defense_evasion discovery execution persistence privilege_escalation trojan
Link:
https://tria.ge/reports/250427-2c418asvf1/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Program crash
System Location Discovery: System Language Discovery
Launches sc.exe
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Executes dropped EXE
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Tofsee
Tofsee family
Malware Config
C2 Extraction:
defeatwax.ru
refabyd.info
Verdict:
Malicious
Tags:
Win.Packed.Loki-10043448-0
YARA:
n/a
Link:
https://app.threat.zone/submission/1f8adb51-e546-4d04-82a1-224fe7f4fcf0
Unpacked files
SH256 hash:
2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd
MD5 hash:
981e42260e883bb8de9fbbc02e43c076
SHA1 hash:
4526478e003aec9d15d9d2d218d6928bfd60d1a2
Link:
https://www.unpac.me/results/b203392a-b022-4d0b-afa4-a347ed828fda/
SH256 hash:
167d2a327d3ef71d65ef0bc8e148ce24259bd8261b5d1bdd48a15ff3f58dd6da
MD5 hash:
a2fcec728cf62911fd07c5c5e0bf03e3
SHA1 hash:
529f1c41e1d8cff13032c3a83eb5bdb0641c1e69
Detections:
win_tofsee_w0
Create hunting rule
Tofsee
Create hunting rule
Detect_Tofsee
Create hunting rule
MALWARE_Win_Tofsee
Create hunting rule
MALWARE_Win_Grum
Create hunting rule
Link:
https://www.unpac.me/results/b203392a-b022-4d0b-afa4-a347ed828fda/
Parent samples :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:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2e7b6669f1af/report/overview.html
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/2e7b6669f1af4ba5e85261b10ddedc7139bd279252af8e3e121e066190bd23fd

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_Tofsee
Create hunting rule
Author:@malgamy12
Description:Detect_Tofsee
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MALWARE_Win_Grum
Create hunting rule
Author:ditekSHen
Description:Detect Grum spam bot
Rule name:MALWARE_Win_Tofsee
Create hunting rule
Author:ditekSHen
Description:Detects Tofsee
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:tofsee_yhub
Create hunting rule
Author:Billy Austin
Description:Detects Tofsee botnet, also known as Gheg
Rule name:Windows_Trojan_Tofsee_26124fe4
Create hunting rule
Author:Elastic Security
Rule name:win_tofsee_bot
Create hunting rule
Author:akrasuski1
Description:Tofsee malware
Rule name:win_tofsee_w0
Create hunting rule
Author:akrasuski1

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/4463/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileA
KERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::GetSystemWow64DirectoryW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen
WIN_TIME_APICan Modify TimeKERNEL32.dll::SetSystemTime

Comments