MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c. 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


XWorm


Vendor detections: 18


Intelligence 18 IOCs 2 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
SHA3-384 hash: c86ad00e79004e3c181358248f05325522386c9f7b9f551b9641c0a402ca521cd69ddce6c673641beadaae4f2b6ece66
SHA1 hash: aad2a2057ccb0cad8e33fdaa2b425f6f0ca048df
MD5 hash: 2b36ba452f4db07e11dfb43b246e704c
humanhash: lake-harry-equal-zebra
File name:TR Proforma Invoice.PDF.bat.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:1'656'840 bytes
First seen:2025-07-29 15:06:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:m34w/jGFJ2Ze7EZ9gNQiWhlDacoa8/RjoTFd6EbqpLGi7wKB9gpVxBuah3NBPzv+:/w/jY7EfCwYpETFfbdOwWmfUY9Brv+
Threatray 9 similar samples on MalwareBazaar
TLSH T1D775236023A5CD03CA9D437849E3F1B083BDAD972203C39E9FD5ADAFB56E3911E15096
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter abuse_ch
Tags:exe xworm


Avatar
abuse_ch
XWorm C2:
45.93.8.241:9352

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.93.8.241:9352 https://threatfox.abuse.ch/ioc/1562048/
45.93.8.241:6743 https://threatfox.abuse.ch/ioc/1562054/

Intelligence

File Origin
# of uploads :
1
# of downloads :
39
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c.exe
Verdict:
Malicious activity
Analysis date:
2025-07-29 15:23:38 UTC
Tags:
crypto-regex auto-sch-xml xworm
Link:
https://app.any.run/tasks/ba573f38-af00-4b9c-8a37-f4a26516d1f8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/17593/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6888e3a10b4775fb21330be8
Tags:
vmdetect asyncrat quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
Setting a keyboard event handler
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/db4e2668-befa-4e25-afb2-2cb74cee8f51
Result
Threat name:
Quasar, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1746410
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Quasar RAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1746410 Sample: TR Proforma Invoice.PDF.bat.exe Startdate: 29/07/2025 Architecture: WINDOWS Score: 100 81 ipwho.is 2->81 83 c2a9c95e369881c67228a6591cac2686.clo.footprintdns.com 2->83 85 4 other IPs or domains 2->85 93 Suricata IDS alerts for network traffic 2->93 95 Found malware configuration 2->95 97 Malicious sample detected (through community Yara rule) 2->97 99 17 other signatures 2->99 10 TR Proforma Invoice.PDF.bat.exe 7 2->10         started        14 ObYAPAWaJlFqaK.exe 2->14         started        signatures3 process4 file5 73 C:\Users\user\AppData\...\ObYAPAWaJlFqaK.exe, PE32 10->73 dropped 75 C:\...\ObYAPAWaJlFqaK.exe:Zone.Identifier, ASCII 10->75 dropped 77 C:\Users\user\AppData\Local\...\tmp5DBD.tmp, XML 10->77 dropped 79 C:\...\TR Proforma Invoice.PDF.bat.exe.log, ASCII 10->79 dropped 103 Writes to foreign memory regions 10->103 105 Allocates memory in foreign processes 10->105 107 Adds a directory exclusion to Windows Defender 10->107 16 MSBuild.exe 5 10->16         started        19 powershell.exe 23 10->19         started        22 powershell.exe 23 10->22         started        28 2 other processes 10->28 109 Multi AV Scanner detection for dropped file 14->109 111 Injects a PE file into a foreign processes 14->111 24 MSBuild.exe 14->24         started        26 schtasks.exe 14->26         started        signatures6 process7 file8 67 C:\Users\user\AppData\Roaming\XClient.exe, PE32 16->67 dropped 69 C:\Users\user\...\RainbowDashClient.exe, PE32 16->69 dropped 71 C:\Users\user\AppData\...\Client-built.exe, PE32 16->71 dropped 30 RainbowDashClient.exe 16->30         started        33 XClient.exe 16->33         started        35 Client-built.exe 14 2 16->35         started        101 Loading BitLocker PowerShell Module 19->101 38 conhost.exe 19->38         started        40 conhost.exe 22->40         started        42 Client-built.exe 24->42         started        48 2 other processes 24->48 44 conhost.exe 26->44         started        46 conhost.exe 28->46         started        signatures9 process10 dnsIp11 113 Antivirus detection for dropped file 30->113 115 Multi AV Scanner detection for dropped file 30->115 117 Bypasses PowerShell execution policy 30->117 50 powershell.exe 30->50         started        53 powershell.exe 30->53         started        119 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->119 121 Adds a directory exclusion to Windows Defender 33->121 55 powershell.exe 33->55         started        57 powershell.exe 33->57         started        87 45.93.8.241, 49693, 49700, 49701 VMAGE-ASRU Russian Federation 35->87 89 ipwho.is 15.204.213.5, 443, 49696 HP-INTERNET-ASUS United States 35->89 123 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->123 125 Installs a global keyboard hook 35->125 signatures12 process13 signatures14 91 Loading BitLocker PowerShell Module 50->91 59 conhost.exe 50->59         started        61 conhost.exe 53->61         started        63 conhost.exe 55->63         started        65 conhost.exe 57->65         started        process15
Score:
75%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c/
Verdict:
Malicious
Threat:
Trojan.MSIL.Taskun
Link:
https://tip.neiki.dev/file/7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-07-29 15:07:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oom7l3eycvfed5qxgksuonzxnnieh2bji2ubuzuoqksxgwpesuga._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
xworm
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
2c3ea6435a9e0047e3e62a972b0ecf35046202af3010def9acba459dc85eb520
XWorm
6688df50d8f852b1190ccf68bff4be905cbf433080b2a02550a7c9050632ef7b
XWorm
7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
XWorm
755b3d4b4a528815f58f295ce9e8a139e64e1e6304d0230215f1188a87e6befe
XWorm
da4fb7c03aaca6df5146ea391788bef99ababd891dbff4b446fa008d254472c2
XWorm
error
XWorm
f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
XWorm
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:quasar family:xenarmor family:xworm botnet:office04 collection discovery execution password persistence rat recovery spyware stealer trojan upx
Link:
https://tria.ge/reports/250729-sg4ftayqt2/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
UPX packed file
Accesses Microsoft Outlook accounts
ACProtect 1.3x - 1.4x DLL software
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads local data of messenger clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Quasar RAT
Quasar family
Quasar payload
XenArmor Suite
Xenarmor family
Xworm
Xworm family
Malware Config
C2 Extraction:
45.93.8.241:6743
45.93.8.241:9352
45.93.8.241:7895
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/174a610d-80a7-4db7-b82b-c23794b65ca5
Unpacked files
SH256 hash:
7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
MD5 hash:
2b36ba452f4db07e11dfb43b246e704c
SHA1 hash:
aad2a2057ccb0cad8e33fdaa2b425f6f0ca048df
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
8ec82095a3f5b7b9ce2e58232985ad3961f3b44d3560405d139dcd2e610a5600
MD5 hash:
54aac60be2e5999b29248dc0ab2112ce
SHA1 hash:
7ef6771510e4ef0dbeaff1b159a8c8bb6fbdf6c5
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
da9947da9c09ce7859a4748170e36facbcd2776fc90021cc0b3cc08b0091369f
MD5 hash:
df8bb591d8d6e4a246c2c59810e4e503
SHA1 hash:
f16f273d3d491e7643914d4946954303c64aafee
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
fbdd32034a9d103543d81a6176950d4ef53e9cd75f0603a95efcc3cdb9854ef5
MD5 hash:
0dd40babf5b1f2f8c85f5ab41d95c8f7
SHA1 hash:
f5fc80b6a2466a2daa14351b34621b8f7361fd9a
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
ff47de146ca00ca24c6523b5f163366affb685bd7685dcd03f1506006da0feb4
MD5 hash:
32a936e7780ad9d0a62d20b4b8c9584b
SHA1 hash:
3b03bb14b749e961b7b2eb8cfb9e4c49c0cf2e9c
Detections:
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
win_xworm_bytestring
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
Parent samples :
755b3d4b4a528815f58f295ce9e8a139e64e1e6304d0230215f1188a87e6befe
7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
6bd023fdf28fc9fccccba5b32005e516ed41e7cfeac0f346a9e637219845e591
SH256 hash:
2a0269859003e6e9c737774cca60dae210c4a335d9f5b6cd0cfe5e6ee376d32f
MD5 hash:
3b973956997ef24ec67370b8c699d5d5
SHA1 hash:
3c7695f6e5c2aca2931ca90a51b773cda502110e
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
c9736bed57d137a0bd4a454a70436020312db5a365bdd243037e766695c18ccd
MD5 hash:
41b34eab1585d5381c56730b93dd1310
SHA1 hash:
510b640517342dbcc40c81b63db23fa1444a71ed
Link:
https://www.unpac.me/results/c4bc8e67-5c1d-4310-b586-97105ad7253b/
SH256 hash:
e891c3702edeae8e9eb3950c6bf7779b27b0be239cc769f64404c782ec45f054
MD5 hash:
363d4adc1f141288a796e38843ee1cba
SHA1 hash:
eba242776305aeb448bf1cc02c1ec7eca24ad0d1
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/c4bc8e67-5c1d-4310-b586-97105ad7253b/
Parent samples :
755b3d4b4a528815f58f295ce9e8a139e64e1e6304d0230215f1188a87e6befe
7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c
6bd023fdf28fc9fccccba5b32005e516ed41e7cfeac0f346a9e637219845e591
048a6a3038dcfa51af0124c7c137746aad2c8641aa328577455bc97b091201de
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7399f5ec9815/report/overview.html
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/7399f5ec98154a41f61732a54737376b5043e82946a81a668e82a57359e4950c

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/17593/

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