MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29
SHA3-384 hash: ac064de6a5890525331702015796201d927a915b8e3926c8b82921c57c639cd19246114e959ad3244ce9d01477916b10
SHA1 hash: 14432db4a6db977a3d7fe2400ae134f4d6a0abc4
MD5 hash: a25556d25217ac81532396b264fa976a
humanhash: item-nebraska-ohio-wisconsin
File name:file
Download: download sample
Signature Tofsee
Create hunting rule
File size:3'937'533 bytes
First seen:2025-12-08 06:57:11 UTC
Last seen:2025-12-29 05:34:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e8ac1646024d52d1534a88da2e8037cd (9 x OffLoader, 9 x HijackLoader, 8 x ValleyRAT)
ssdeep 98304:tDbnTHM5vAbHKSmdiPVj0E5XRZFfSqVfddfORtOf5P0:tDbncvHSmsPVj0UNfSqV1dfnf58
Threatray 1 similar samples on MalwareBazaar
TLSH T1F8060227B24E673EE47A5A3645729A50583FBA50651F8CA3D6F40E4CCE290601E7FF07
TrID 49.8% (.EXE) Inno Setup installer (107240/4/30)
20.0% (.EXE) InstallShield setup (43053/19/16)
19.3% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
4.8% (.EXE) Win64 Executable (generic) (10522/11/4)
2.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 787cda4ccca4c0e1 (2 x Tofsee, 1 x QuasarRAT)
Reporter Bitsight
Tags:dropped-by-gcleaner EUNIQ.file exe Tofsee x


Avatar
Bitsight
url: http://194.38.20.224/service

Intelligence

File Origin
# of uploads :
248
# of downloads :
115
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/877543df-eae0-495b-8585-48e8b0662e5c/
Malware family:
tofsee
Create hunting rule
ID:
1
File name:
_1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29.exe
Verdict:
Malicious activity
Analysis date:
2025-12-08 06:58:38 UTC
Tags:
tofsee upx
Link:
https://app.any.run/tasks/35ad71c9-339f-4e42-bfef-32ce1718072e

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/42966/
Verdict:
Clean
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=693676cb920336450abc1963
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Restart of the analyzed sample
Creating a process with a hidden window
Creating a file
Moving a recently created file
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending a custom TCP request
Connecting to a non-recommended domain
Launching a service
Launching a process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context embarcadero_delphi fingerprint inno installer installer installer-heuristic overlay packed
Link:
https://www.filescan.io/uploads/69367704bc15eab491f6c8a9/reports/4b1462d8-a7e8-49a4-9165-6174e33e18f8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-08T04:05:00Z UTC
Last seen:
2025-12-09T16:20:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.RokRat.sb Trojan.Win32.Mansabo.sb Trojan.Win32.Gatak.sb Backdoor.Win32.Zegost.sb Backdoor.Tofsee.TCP.C&C Trojan.Win32.Shellcode.sb Trojan.Win32.AntiAV.sb Backdoor.Win32.Tofsee.sb Backdoor.Win32.Tofsee.eftk Backdoor.Remcos.TCP.C&C not-a-virus:RiskTool.Win32.BitCoinMiner.sb
Link:
https://opentip.kaspersky.com/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/57539ff2-3162-4d3f-9c50-d0b04ad0db35
Score:
84%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/a25556d25217ac81532396b264fa976a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29/
Verdict:
Malicious
Threat:
Family.TOFSEE
Link:
https://tip.neiki.dev/file/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29
Threat name:
Win32.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2025-12-08 06:58:15 UTC
File Type:
PE (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dkvv4etwufjrcqogy264aymbjmcbmrhe7c7t22srsuasktkahquq._file
Verdict:
malicious
Label(s):
tofsee
Create hunting rule
Similar samples:
error
Tofsee
Result
Malware family:
tofsee
Create hunting rule
Score:
  10/10
Tags:
family:tofsee defense_evasion discovery installer trojan upx
Link:
https://tria.ge/reports/251208-hrlcwasqan/
Behaviour
Modifies Control Panel
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Enumerates physical storage devices
System Location Discovery: System Language Discovery
UPX packed file
ACProtect 1.3x - 1.4x DLL software
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Tofsee
Tofsee family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2cd51b24-3ebf-46f5-801e-b0dff81a1633
Unpacked files
SH256 hash:
1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29
MD5 hash:
a25556d25217ac81532396b264fa976a
SHA1 hash:
14432db4a6db977a3d7fe2400ae134f4d6a0abc4
Link:
https://www.unpac.me/results/b7035856-fc0b-45c5-bbbb-8cc7f84d445e/
SH256 hash:
3cc18ba30a8188a3ff34cb548ce39ad02302f6860db39224d4c33c15cbd15819
MD5 hash:
0d8c7d40258413f2d99bb04ea91a8912
SHA1 hash:
10543a9f71ac20431b3c3bb346b69cdd1f3f411a
Link:
https://www.unpac.me/results/b7035856-fc0b-45c5-bbbb-8cc7f84d445e/
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/1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29

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:Borland
Create hunting rule
Author:malware-lu
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MAL_packer_lb_was_detected
Create hunting rule
Author:0x0d4y
Description:Detect the packer used by Lockbit4.0
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:ProgramLanguage_Rust
Create hunting rule
Author:albertzsigovits
Description:Application written in Rust programming language
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Tofsee

Executable exe 1aab5e1276a1531141c6c6bdc061814b041644e4f8bf3d6a519501254d403c29

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/42966/

Comments