MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72. 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: 14


Intelligence 14 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
SHA3-384 hash: 25550587152c35b3cf513b9a62e725ffdc9f0f644758174b86f1c7615ed11ad97b817a3feb078f7d958affd0bd8dfdd2
SHA1 hash: b69f1d1d38a4b46664394e29f5127637a3699dd1
MD5 hash: 8f39b0dd0836e1746ac9b1642e66d8dc
humanhash: uniform-mexico-failed-winter
File name:1UGwDFF.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'177'024 bytes
First seen:2025-06-06 06:16:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:9ECSWeWBRYRR1qJvHIPbcNE0KKSb7yviUSQaBaOwIRxl2S62/9+TNklVEBNJBsI8:37YReEwKKSb7L3wip6fyVEB+I/T
Threatray 15 similar samples on MalwareBazaar
TLSH T1C5A5AE2039EA500EF0BF9E74D7D5B5DA4B7EB1A23706965D1A40134A0E23641EDCB2FB
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
dhash icon c88604b919c6c6c0 (77 x GuLoader, 10 x Formbook, 8 x AgentTesla)
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
410
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1UGwDFF.exe
Verdict:
Malicious activity
Analysis date:
2025-06-06 06:21:01 UTC
Tags:
auto-reg crypto-regex
Link:
https://app.any.run/tasks/83379686-ae54-499b-9987-103e8f36e023

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/7642/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6842886d07b5e8c1cfe5133a
Tags:
autorun emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b1e44448-82ed-4517-8dba-3855e0ff5ab8
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1707935
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72/
Threat name:
Win32.Trojan.Jalapeno
Create hunting rule
Status:
Malicious
First seen:
2025-06-06 00:58:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7b47kdrbqmftjn373ffdhnwdsw4yg65xagt7lzg22lu5fb5ptzza._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
2a6add589b534632a04d3c6eaec0c4a7d6b072bffbb84c0b800bb24ef2ad1ab0
QuasarRAT
2adbf68e583680bf9804404c43990adf4f011783f4f1cdddcc9afb67039a16a8
QuasarRAT
368989934389f9101ee031231304d2544a5bd55ae3626bdba993451715558d7e
QuasarRAT
50cb6b8d0f572cd355d682a3f3529854b98cc75e141e452c98bec0279ef1ace2
QuasarRAT
a77fed3715f635883d0e54c30ab4d3ccad5afe0f845d27e5bff0f9410df4aaee
QuasarRAT
e3028ecd7637653dda1250fa2925e143796e385cda98191f04eec0681fd0c826
QuasarRAT
error
QuasarRAT
+ 5 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/250606-g158zawzh1/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Generic-9883083-0
YARA:
n/a
Link:
https://app.threat.zone/submission/a33a79ce-17ea-4490-b1d3-602a4ea4355a
Unpacked files
SH256 hash:
f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
MD5 hash:
8f39b0dd0836e1746ac9b1642e66d8dc
SHA1 hash:
b69f1d1d38a4b46664394e29f5127637a3699dd1
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
SH256 hash:
8305237f6e27115eda1523e66b2fcde2ac4bb24ea832bd53d60b46f6284465c6
MD5 hash:
97257814c8a06fe386c23a5b9e7a12b3
SHA1 hash:
608d3c9fff54236f282259fd5d2af42f564a86b2
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/bcc81933-407e-45be-8a53-f719b7a88711/
Parent samples :
2a6add589b534632a04d3c6eaec0c4a7d6b072bffbb84c0b800bb24ef2ad1ab0
2adbf68e583680bf9804404c43990adf4f011783f4f1cdddcc9afb67039a16a8
f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
bf2ef5b129882d9a508c72a6afefede8ca7de3db89e5b3754ca8c470e27122ba
a1598314ea680183e6630630e06d6784173bbf32bd895eaf3882d585e22609cb
SH256 hash:
a0af255ea4b09a8cdb995b8c6fd1075e46f098e23c2351c974e6ded9b8b620cf
MD5 hash:
c52a44933d17d576d4c97b4cb0545841
SHA1 hash:
092696fdcc034910aa02c94a5c93f4e1e86e0c50
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
Parent samples :
78976f38ca4b4e62ead97e1222faa8ce79c0f9a517ef57bdeae4dc3f2c834d1b
818ef3d013069a7bacd3bf4d4a728ace9ea74ab518fb4adffcc0a23f57e4b585
50cb6b8d0f572cd355d682a3f3529854b98cc75e141e452c98bec0279ef1ace2
030c62f201281c0034102b3cab64490e51b0499a9b5fad498f1ded30b23dbf66
d65862ab1d8dfcba06ab6e1fc40d109d9c644cac4e02ef0c8fb30f96ec199b61
31e0765454785a12c86436331f67020b7390d16b9de42b954127799835eea36c
89a59fdc6d7e292adecc9602af1544e9d6c7fdb1f99f654a918d007422a93d14
78daa33cb739c0b1648f17599695cf0fc5ad0b1c7640d55d91e1d534a024c6f7
c8b2df4130ad422d0dab2be3798677609f0555f37d825cda228662d2112f3d6c
6597d0a917f2def35809cfcffd7c9098bc7e97eb62d35fb74486344208faf61a
a77fed3715f635883d0e54c30ab4d3ccad5afe0f845d27e5bff0f9410df4aaee
f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72
0a45180f1b3ef2e81e988e448cbf6eb1ddedcd864a7ecf46ac5a28aef8f2740b
6c2b4ca9e169f3d71f3fa2962b947c0f7b1e358e2e7ce6c9ee12778e0679f6b1
eb72d6dd2158ce9ad453f8ecfd5d6900cce588c196ae5806268cbaf3475848da
00b4241162e828f59e1a47467cdecd0c36f779e1e5b7c4930331c9104b6e1c55
SH256 hash:
4c9615496970ea84320e2a6e99f8fb828e3c7790384df5585d93fc368885d94e
MD5 hash:
50e6524b7ee9c2c93f5210b63cb1ca54
SHA1 hash:
3e296ec3bb24750833ea80515e6fb4c73874c91a
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
SH256 hash:
c9736bed57d137a0bd4a454a70436020312db5a365bdd243037e766695c18ccd
MD5 hash:
41b34eab1585d5381c56730b93dd1310
SHA1 hash:
510b640517342dbcc40c81b63db23fa1444a71ed
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
SH256 hash:
9892d1696e2d654958733962cbb89f2826ff6253294c8eee44df2ae5009939ea
MD5 hash:
51730e0216adb98765dbadc77be30d98
SHA1 hash:
7611c7f0324ba300b09bf2032ff7bb2fdb261900
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/bcc81933-407e-45be-8a53-f719b7a88711/
SH256 hash:
bc0243134c93c55ea105d0e9c2a43b6030e973290d0a061cf3a61986a2268a88
MD5 hash:
d2edde626c241549eab636aa87fb5d38
SHA1 hash:
8d836febd477b3ec44cc37f4f0aecdaa1d7db788
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
SH256 hash:
56f525e33494f4cd2a560a71cdf237303a3fb54a8fa44e1693eba35c9245c60a
MD5 hash:
07137e5cc4d5ecc95ca267c9dce042d4
SHA1 hash:
d82f5e3d718bc9172fcfe0e8c50cb20251762058
Link:
https://www.unpac.me/results/bcc81933-407e-45be-8a53-f719b7a88711/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72

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: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_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:NET
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_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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.

Web download

QuasarRAT

Executable exe f879f50e21830b34b77fd94a33b6c395b9837bb701a7f5e4dad2e9d287af9e72

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558601/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/7642/

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