MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4. 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: 15


Intelligence 15 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
SHA3-384 hash: 667e6237989f2586846929e57555db5244e656e5a5da46e2e0727eb0149be46ef4c1599cd2ec5734292ce742c5bc8c0c
SHA1 hash: 5204383b529fef10489ae549a3956679a5f66da5
MD5 hash: b06b3d5afd0e099ec6445a7ca55ee105
humanhash: eleven-finch-happy-nuts
File name:z9PruebadeTransferencia.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'870'720 bytes
First seen:2025-05-31 19:00:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'753 x AgentTesla, 19'660 x Formbook, 12'250 x SnakeKeylogger)
ssdeep 98304:F+cns1ipBYLPVweVtriYODnK2Rg7/sT4mGxG:F+cns1iHYxwkiY7/sTn
TLSH T1060623DD354176DEC4A3C032AAA92C74E2522C7B431B0143E42B7DA7BE7D98BDE154B2
TrID 28.5% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 78c0db4cea7aa0fc (33 x AveMariaRAT, 23 x QuasarRAT, 1 x Loki)
Reporter FXOLabs
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
412
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
z9PruebadeTransferencia.exe
Verdict:
Malicious activity
Analysis date:
2025-05-31 19:18:27 UTC
Tags:
auto-reg crypto-regex confuser
Link:
https://app.any.run/tasks/c6ad1b92-b1bd-4c31-be9f-9489c9a2597e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/6577/
Detection(s):
PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683b53f1acf88f5815e9cbc7
Tags:
autorun packed virus 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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 confuser confuserex net obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/683b51d8fd02ed5e0591cbe3/reports/2cf48116-9df3-4f36-ab1b-78dc8510498e/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c8a7a8a6-5171-409c-bd24-c69e0079993e
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1703054
Signature
.NET source code contains potential unpacker
Detected unpacking (changes PE section rights)
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
PE file contains section with special chars
PE file has nameless sections
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses threadpools to delay analysis
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1703054 Sample: z9PruebadeTransferencia.exe Startdate: 31/05/2025 Architecture: WINDOWS Score: 100 50 twobyoneset.ydns.eu 2->50 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->60 62 7 other signatures 2->62 11 z9PruebadeTransferencia.exe 1 2->11         started        15 Client.exe 2->15         started        signatures3 process4 file5 46 C:\Users\...\z9PruebadeTransferencia.exe.log, ASCII 11->46 dropped 68 Detected unpacking (changes PE section rights) 11->68 70 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 11->72 74 Uses threadpools to delay analysis 11->74 17 z9PruebadeTransferencia.exe 4 11->17         started        21 z9PruebadeTransferencia.exe 2 11->21         started        76 Injects a PE file into a foreign processes 15->76 23 Client.exe 15->23         started        25 Client.exe 15->25         started        signatures6 process7 file8 44 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 17->44 dropped 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->54 27 Client.exe 1 17->27         started        30 schtasks.exe 1 17->30         started        signatures9 process10 signatures11 64 Multi AV Scanner detection for dropped file 27->64 66 Uses threadpools to delay analysis 27->66 32 Client.exe 2 27->32         started        36 Client.exe 2 27->36         started        38 conhost.exe 30->38         started        process12 dnsIp13 48 twobyoneset.ydns.eu 196.251.115.164, 4784, 49695, 49696 xneeloZA Seychelles 32->48 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->52 40 schtasks.exe 32->40         started        signatures14 process15 process16 42 conhost.exe 40->42         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4/
Threat name:
Win32.Trojan.Genie
Create hunting rule
Status:
Malicious
First seen:
2025-05-31 19:00:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hizw322n6zuwaber4lmxg3yf6kyewtvrdis6baxticnc7p6bft2a._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:office01 discovery spyware trojan
Link:
https://tria.ge/reports/250531-xnzhnagk2t/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
twobyoneset.ydns.eu:4784
Verdict:
Suspicious
Tags:
red_team_tool
YARA:
SUSP_NET_NAME_ConfuserEx
Link:
https://app.threat.zone/submission/6adc911f-7993-4508-8665-c5901f69b617
Unpacked files
SH256 hash:
3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
MD5 hash:
b06b3d5afd0e099ec6445a7ca55ee105
SHA1 hash:
5204383b529fef10489ae549a3956679a5f66da5
Link:
https://www.unpac.me/results/35aa065a-00ea-4463-9516-06b438ebf116/
SH256 hash:
b97eac9552f86069999233bd310de2c43f76da4e678d5892dd2f4009f435bf7e
MD5 hash:
1a38e54c26f19d7dd6130ba07090ff83
SHA1 hash:
a2daeb3d012b193b9d27a6b3cf0be2660e8dfab3
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
MAL_BackNet_Nov18_1
Create hunting rule
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Link:
https://www.unpac.me/results/35aa065a-00ea-4463-9516-06b438ebf116/
Parent samples :
3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
c5add8fc87f51a5cd7297f626bcffbe1d5a61dd3045d920dbf81ab35918d7835
SH256 hash:
4ec6c65fdaef8e201ae68d552c7a5ebb40445803c0c3277f3f1851adc99a37b9
MD5 hash:
c93c65d308ac7d0f57fd5f4a00eac120
SHA1 hash:
a4e798d91cfb9beeac15898c495c298dc5f19e07
Detections:
SUSP_NET_NAME_ConfuserEx
Create hunting rule
INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
INDICATOR_EXE_Packed_ConfuserEx_Custom
Create hunting rule
Link:
https://www.unpac.me/results/35aa065a-00ea-4463-9516-06b438ebf116/
SH256 hash:
f1fda9a0fdefea71a34550aaf7afb182b5f8b657bc23e076565a674a25a715fc
MD5 hash:
eaf4654dfd9675770f1f2637e3e31b82
SHA1 hash:
d41d7170d0ae5cf142fd6c8c3b5572534b9cd405
Link:
https://www.unpac.me/results/35aa065a-00ea-4463-9516-06b438ebf116/
SH256 hash:
60ca1574d0c916d1f5686bcf871488710a2677a68c94f65a2be47d707976c061
MD5 hash:
d8c04d4e36632b4d5fb0ffab446877ed
SHA1 hash:
6092ad4043c572c8a5616f8a1b343aa94bca25a3
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/35aa065a-00ea-4463-9516-06b438ebf116/
Parent samples :
d65862ab1d8dfcba06ab6e1fc40d109d9c644cac4e02ef0c8fb30f96ec199b61
969ae30c1e3ef08840b3fd85f4abe4ef6eef6eb41257bcb58be3126a5cfeb872
d4cdc7632ae0821d13906a9ca0b02a257997a0c2512c07f25053df70f92ea195
3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4
e66ca5568b7156f5d0d890b4a996705b103be6a14fe74673e980f4636de98ebb
337de3ec21865f342e56f5c6f1a831533050ccb46fe717b620b708853577b549
19575aa4bd61808dfe0ff0b2428cbd9e91ec74e49978f1ed7b95039f454b5d71
86e4f01efa31f2491341bcc774c318ef1bda2d1dcd1bbce13b463c2f1b517221
94e36ae9ccadc3ab6bdf0e2aa5be7d4927f61a9b2bc572bc78f06569372e5652
72408c6e85f34e8002d8e0439afef5823a5e6f45ef2cec0b6f8457365d56120c
ed943a94a73e12300c6fe833b553cddd1cefda33fd849300447e33d33c0758c7
da1725bbfd77ba1824cb501a5e6614c715531aa5b9d0e98151840173e9f26046
6c2b4ca9e169f3d71f3fa2962b947c0f7b1e358e2e7ce6c9ee12778e0679f6b1
0bdc4e6fdc8e32408990cff8e711a21a86e02007d6a1683b7129e76c2bc1ebbd
7e9868f4da3238a549866769de126d9ef902b19c4760701d8f883f54bf8961c0
511ace09e2e37545e0f12232fb3ad7da230f0c55ea803fa14ae84530257069b6
fe81faa80cbe72b3c88c0f6df7e276bb09262308e59f2abc4b24bf634d728e36
53bd45a2da8a0db00c6202fd66651bde1b5ede0cdee998654c64d037ccfa9b68
5b55a5d95f541d3d1c214926893f3187f0a90d4984e673c81c28edb23576c286
e9a2e9ce85efba103622a6abf25c4e0d280eb5ca8012e43db46b5394b8a1db10
e8b13c084533e4ae24ea404d7bd849554af93071e62c61ef47f7f98cd8d62e31
e1b8b76b327b7253e25566550b8d05c711522e5174ac75da9c2409920e372e5e
2c6e2f8a74d0654ed9215de12457c324f87fd91042435a75438d42601a26a0dc
9926e77942377ae785122efbf7a70007071ab49b8080a89c5f386dd9593247e3
afd41a672f348abb8dabc8a493a0ffa1199019ead9b0bd92cb327d4bbfe97771
8ee2ec2284e50ce2c40a5595892ce9d908ed3531db8501cc7bf0b3c051d4cd3e
a1a600812424e7c976b8ec60f77fe808520d3fc7f716d12663bdc22b93c81038
42bee2b9b2885a5acfdbc34921ad07507bee945be5c2852924d39363f6aec018
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3a336deb4df6/report/overview.html
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
Create hunting rule
Rule name:Costura_Protobuf
Create hunting rule
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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_EXE_Packed_ConfuserEx_Custom
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Custom; outside of GIT
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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)

File information

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

Malspam

QuasarRAT

Executable exe 3a336deb4df669600491e2d9736f05f2b04b4eb11a25e082f3409a2fbfc12cf4

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/6577/

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 (GUARD_CF)high

Comments