MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8b13c084533e4ae24ea404d7bd849554af93071e62c61ef47f7f98cd8d62e31. 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 11 File information Comments

SHA256 hash: e8b13c084533e4ae24ea404d7bd849554af93071e62c61ef47f7f98cd8d62e31
SHA3-384 hash: d8a55615b4225ccf67e64cb60e80a58896de996d24cb69e561015a1822dd5d7a6a6369762e9717a857886625386b0f22
SHA1 hash: cf66fff1c1d02e0b19fd8faab55930d0ea499df0
MD5 hash: d66685c1ff0ea4e93724b4e86459a8a0
humanhash: fruit-london-queen-steak
File name:z45Transferencia_1292025.exe
Download: download sample
Signature QuasarRAT
File size:3'489'280 bytes
First seen:2025-12-09 16:34:40 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 49152:KpEgjRxxyLxdhXNPEY+XY0y0/ALL+jDjVZepRloRjXYe7ynhYMAHJbWWuuqN3ov:SNfELxbSYAoLLCZ3NYeqhYMkbRui
Threatray 346 similar samples on MalwareBazaar
TLSH T112F5234966D18C35CA525D3482300AB443779F993A91F383FDA83CB737B37D968A64CA
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 FXOLabs
Tags:exe QuasarRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
106
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z45Transferencia_1292025.exe
Verdict:
Malicious activity
Analysis date:
2025-12-09 16:38:00 UTC
Tags:
httpdebugger tool anti-evasion yano

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Tags:
smartassembly packed micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 dotfuscator obfuscated obfuscated packed reconnaissance smartassembly vbnet yano
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-09T13:34:00Z UTC
Last seen:
2025-12-11T04:48:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic HEUR:Trojan.MSIL.Tasker.gen PDM:Trojan.Win32.Tasker.cust
Verdict:
inconclusive
YARA:
13 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.79 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-12-09 16:35:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:quasar botnet:office04 defense_evasion discovery execution persistence spyware trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Executes dropped EXE
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
195.24.236.68:4788
mainmenuflo.ydns.eu:4788
Unpacked files
SH256 hash:
e8b13c084533e4ae24ea404d7bd849554af93071e62c61ef47f7f98cd8d62e31
MD5 hash:
d66685c1ff0ea4e93724b4e86459a8a0
SHA1 hash:
cf66fff1c1d02e0b19fd8faab55930d0ea499df0
SH256 hash:
a0af255ea4b09a8cdb995b8c6fd1075e46f098e23c2351c974e6ded9b8b620cf
MD5 hash:
c52a44933d17d576d4c97b4cb0545841
SHA1 hash:
092696fdcc034910aa02c94a5c93f4e1e86e0c50
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
SH256 hash:
4c9615496970ea84320e2a6e99f8fb828e3c7790384df5585d93fc368885d94e
MD5 hash:
50e6524b7ee9c2c93f5210b63cb1ca54
SHA1 hash:
3e296ec3bb24750833ea80515e6fb4c73874c91a
SH256 hash:
60ca1574d0c916d1f5686bcf871488710a2677a68c94f65a2be47d707976c061
MD5 hash:
d8c04d4e36632b4d5fb0ffab446877ed
SHA1 hash:
6092ad4043c572c8a5616f8a1b343aa94bca25a3
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24 HKTL_NET_GUID_Quasar
SH256 hash:
6cb168c50b56bf76dfae8ca6fbe6f8f3781c46bb96cdb5edc285f5cf6ce317c8
MD5 hash:
d54c6f669efd12c7b3844923b6775fa5
SHA1 hash:
822d225774bfef73126e8ba19cb294e9fa1460e0
SH256 hash:
bc0243134c93c55ea105d0e9c2a43b6030e973290d0a061cf3a61986a2268a88
MD5 hash:
d2edde626c241549eab636aa87fb5d38
SHA1 hash:
8d836febd477b3ec44cc37f4f0aecdaa1d7db788
SH256 hash:
66c9fc4077a2c4643028b9bfbde11e006bc80744a6c9b902fc1d8972822c7600
MD5 hash:
9a4d1a8c932ae1afe95c8bde68b0307e
SHA1 hash:
a2346f0a11b7fd5bb17a91012c08f9d962d7cdb1
SH256 hash:
b7b8401f43dc01b8f53af3989aab1506e199de9be61f53f95a66790dabf52a7b
MD5 hash:
4a8ecf97cc219c1a8f9888f9dd986dbc
SHA1 hash:
047eb93feec863fd8f45efd9707ac378ed6075ab
SH256 hash:
1308820bce913f0938627d9dd88804061e2c17c3d5c878a9d3584173966d68c8
MD5 hash:
d10b41b9c16bd99ea3bb9de80b7f5ca1
SHA1 hash:
cf412bbc2452d3f589b4efaef3a5b0014dd9513d
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
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:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dsc
Author:Aaron DeVera
Description:Discord domains
Rule name:INDICATOR_EXE_Packed_Dotfuscator
Author:ditekSHen
Description:Detects executables packed with Dotfuscator
Rule name:INDICATOR_EXE_Packed_Goliath
Author:ditekSHen
Description:Detects executables packed with Goliath
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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 e8b13c084533e4ae24ea404d7bd849554af93071e62c61ef47f7f98cd8d62e31

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments