MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10. 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



QuasarRAT


Vendor detections: 18


Intelligence 18 IOCs YARA 31 File information Comments

SHA256 hash: e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10
SHA3-384 hash: 591a2cedf0983bd75aa472c6e04ea3e773fa4ca79a3cb73f398eca6adfead8feefc4737f20fea1160ff695f4974d0914
SHA1 hash: 37d1e5080c9443eb80fe8ba5e2b489e644b016a1
MD5 hash: 25f1c71e8045425c2c9b3d3947847cba
humanhash: paris-white-batman-skylark
File name:Comprobante.transferencia.exe
Download: download sample
Signature QuasarRAT
File size:3'399'168 bytes
First seen:2025-12-03 08:36:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 98304:hnsASxm2CdeRvN7i4lVX13zagNZa6qnWSu57NYa3:NrS82YeR17hlVFeSunWSuEK
Threatray 263 similar samples on MalwareBazaar
TLSH T1F6F523EE7594A4EFCA03C1798D649C3852626DBB5723C20314273CE7363D2DA9F294B2
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter lowmal3
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
112
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
ConfuserEx
Details
ConfuserEx
decrypted strings and possibly embedded components
Malware family:
n/a
ID:
1
File name:
_e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10.exe
Verdict:
No threats detected
Analysis date:
2025-12-03 08:38:30 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
autorun packed micro sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 confuser confuserex lynx net obfuscated obfuscated packed packed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-02T14:31:00Z UTC
Last seen:
2025-12-05T04:50:00Z UTC
Hits:
~100
Detections:
Trojan-GameThief.MSIL.Worgtop.b Trojan-GameThief.MSIL.Worgtop.a PDM:Trojan.Win32.Tasker.cust HEUR:Trojan.Win32.Generic Trojan-PSW.MSIL.Agent.sb
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Unusual module load detection (module proxying)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1825187 Sample: Comprobante.transferencia.exe Startdate: 03/12/2025 Architecture: WINDOWS Score: 100 64 uortyfivev.crabdance.com 2->64 66 flowbilding.ydns.eu 2->66 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus / Scanner detection for submitted sample 2->78 80 9 other signatures 2->80 11 Comprobante.transferencia.exe 1 2->11         started        15 appImg.exe 2->15         started        signatures3 process4 file5 62 C:\...\Comprobante.transferencia.exe.log, ASCII 11->62 dropped 92 Detected unpacking (changes PE section rights) 11->92 94 Detected unpacking (overwrites its own PE header) 11->94 96 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->96 98 Uses schtasks.exe or at.exe to add and modify task schedules 11->98 17 Comprobante.transferencia.exe 3 11->17         started        20 Comprobante.transferencia.exe 4 11->20         started        23 appImg.exe 15->23         started        25 appImg.exe 15->25         started        signatures6 process7 file8 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->72 27 appImg.exe 17->27         started        30 schtasks.exe 1 17->30         started        60 C:\Users\user\AppData\Roaming\...\appImg.exe, PE32 20->60 dropped 32 appImg.exe 1 20->32         started        34 schtasks.exe 1 20->34         started        36 WerFault.exe 23->36         started        signatures9 process10 signatures11 84 Antivirus detection for dropped file 27->84 86 Multi AV Scanner detection for dropped file 27->86 88 Injects a PE file into a foreign processes 27->88 90 Unusual module load detection (module proxying) 27->90 38 appImg.exe 27->38         started        42 appImg.exe 27->42         started        44 conhost.exe 30->44         started        46 appImg.exe 32->46         started        48 appImg.exe 2 32->48         started        50 conhost.exe 34->50         started        process12 dnsIp13 68 uortyfivev.crabdance.com 195.24.236.68, 4805, 49688, 49709 NTI-AS9MaiBlocB11ScaraDEtaj2Ap67RO Romania 38->68 70 flowbilding.ydns.eu 185.24.236.70, 4800 DIALTELECOM-ASDialTelecomasSK Czech Republic 38->70 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 38->82 52 schtasks.exe 38->52         started        54 WerFault.exe 42->54         started        56 WerFault.exe 46->56         started        signatures14 process15 process16 58 conhost.exe 52->58         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Bulz
Status:
Malicious
First seen:
2025-12-03 08:37:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:oro06 discovery execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Program crash
ConfuserEx .NET packer
Suspicious use of SetThreadContext
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
uortyfivev.crabdance.com:4805
flowbilding.ydns.eu:4800
Verdict:
Malicious
Tags:
red_team_tool Win.Packed.Lynx-6899009-0
YARA:
SUSP_NET_NAME_ConfuserEx
Unpacked files
SH256 hash:
e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10
MD5 hash:
25f1c71e8045425c2c9b3d3947847cba
SHA1 hash:
37d1e5080c9443eb80fe8ba5e2b489e644b016a1
SH256 hash:
075bd1a83e69c3843d9fca67122d995ef4150de2b29bf2aa7e618d1693a2048d
MD5 hash:
1222ef1195f51aa3f01695f5b1820c7f
SHA1 hash:
8f63cb536e822eccc62fd4f623dac3947bef779a
Detections:
QuasarRAT cn_utf8_windows_terminal malware_windows_xrat_quasarrat MAL_QuasarRAT_May19_1 MAL_BackNet_Nov18_1 INDICATOR_EXE_Packed_Fody INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
SH256 hash:
3d23e912668f67f9a2dcfc7539db0fabe235f54306355ad9787ef8dbb3b53706
MD5 hash:
88b34d8be0cf3a4559b4b8fff3364c6b
SHA1 hash:
2d16cf3a7c3bd1db3d3f07311a0fd91a355a7cc3
Detections:
QuasarRAT cn_utf8_windows_terminal malware_windows_xrat_quasarrat MAL_QuasarRAT_May19_1 MAL_BackNet_Nov18_1 INDICATOR_EXE_Packed_Fody INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
SH256 hash:
c2aa990eacd90495ef9a1b335c05b1c1d3d6e1187ed2845b746c1967b61eee93
MD5 hash:
9f2f25e23050a4c072e3333c1c1273f1
SHA1 hash:
369cb2e51ca42da8cd064774adb5850f6ddbf91b
Detections:
QuasarRAT cn_utf8_windows_terminal malware_windows_xrat_quasarrat MAL_QuasarRAT_May19_1 MAL_BackNet_Nov18_1 INDICATOR_EXE_Packed_Fody INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
SH256 hash:
228d283b7e32eac897e99d15c0e0f398c87c654af0183b22cb8aa1fecdae91e3
MD5 hash:
d586a87fcf99e845d505c27f1a7dbc2e
SHA1 hash:
da2a5ae1b7c48ae9b08ee4722956dae840db4d56
SH256 hash:
60ca1574d0c916d1f5686bcf871488710a2677a68c94f65a2be47d707976c061
MD5 hash:
d8c04d4e36632b4d5fb0ffab446877ed
SHA1 hash:
6092ad4043c572c8a5616f8a1b343aa94bca25a3
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24 HKTL_NET_GUID_Quasar
Malware family:
QuasarRAT
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:Check_Dlls
Rule name:Costura_Protobuf
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_EXE_Packed_ConfuserEx_Custom
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Custom; outside of GIT
Rule name:INDICATOR_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_QuasarRAT_May19_1
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Malspam

QuasarRAT

Executable exe e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10

(this sample)

  
Delivery method
Distributed via e-mail attachment

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