MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b. 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


PureLogsStealer


Vendor detections: 14


Intelligence 14 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
SHA3-384 hash: 18ea839601e3957b70f685be7fcde7527fc8b5bbcf94f91c9f9cd266edfc8c1343a95919774c568a2d430e0870a47a4a
SHA1 hash: 0046cf478dec24d7c036eac2e74e9a8d1cc84f3c
MD5 hash: 90fe083e788e2ee3193052c3db6e96c7
humanhash: april-carbon-kentucky-cold
File name:Request for Quotation – Supply of Building Materials.doc.bat
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:768'512 bytes
First seen:2025-04-04 08:51:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ZstrogmWP9RjnixCovM41Pc/FU5gb8xYP8EW/9bPCDIPmok7jtVejOwoV82:YtqxB510tUmbKY0PY9GOw+8
TLSH T18FF402A8672ADC06D4EA1BB55D21D3BC4728CFDD7812D3078BFD6DABB83199228443D1
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 30f0cccececcf030 (8 x SnakeKeylogger, 3 x MassLogger, 1 x AgentTesla)
Reporter abuse_ch
Tags:bat exe PureLogStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
244
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/550/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ef9ef6cfd0a37f830dd43f
Tags:
micro krypt spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67ef9dbb40adfb5162b8e99c/reports/807e13b7-432c-4520-8a53-bceaf2d46bc7/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d4064406-8854-4152-92b5-d476a42bf927
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1656472
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
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AntiVM3
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1656472 Sample: Request for Quotation #U201... Startdate: 04/04/2025 Architecture: WINDOWS Score: 100 44 Sigma detected: Scheduled temp file as task from temp location 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Yara detected PureLog Stealer 2->48 50 9 other signatures 2->50 7 Request for Quotation #U2013 Supply of Building Materials.doc.bat.exe 7 2->7         started        11 nkccsxfZq.exe 5 2->11         started        process3 file4 38 C:\Users\user\AppData\Roaming\nkccsxfZq.exe, PE32 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmp3057.tmp, XML 7->40 dropped 42 Request for Quotat...als.doc.bat.exe.log, ASCII 7->42 dropped 52 Adds a directory exclusion to Windows Defender 7->52 13 powershell.exe 23 7->13         started        16 schtasks.exe 1 7->16         started        18 vbc.exe 7->18         started        26 4 other processes 7->26 54 Multi AV Scanner detection for dropped file 11->54 20 schtasks.exe 1 11->20         started        22 vbc.exe 11->22         started        24 vbc.exe 11->24         started        28 3 other processes 11->28 signatures5 process6 signatures7 56 Loading BitLocker PowerShell Module 13->56 30 WmiPrvSE.exe 13->30         started        32 conhost.exe 13->32         started        34 conhost.exe 16->34         started        36 conhost.exe 20->36         started        process8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-04-03 22:12:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6kalwtiqg3vu43tucdwvfwzwi4rotuhpvnpuamedisepae3lyuvq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250404-kssjpawky5/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/08a63443-cd01-4df1-965b-8dcba248f9c2
Unpacked files
SH256 hash:
f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
MD5 hash:
90fe083e788e2ee3193052c3db6e96c7
SHA1 hash:
0046cf478dec24d7c036eac2e74e9a8d1cc84f3c
Link:
https://www.unpac.me/results/8c09aaa4-17e8-40d9-ab3f-a63c8abc7c8a/
SH256 hash:
cab2de1eaea10f5bae304d2cc7cf01c07fbc0c99a57726549b6848b075822f46
MD5 hash:
1bb7cddceb71c3db33c2e50e71909c98
SHA1 hash:
154e15cc2daf73f473ab9c44e4e5ad5ca69e8145
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/8c09aaa4-17e8-40d9-ab3f-a63c8abc7c8a/
SH256 hash:
4c87f22ce2466f1e1447d80155a69833eff54dad60df6f292484976e2c2f805b
MD5 hash:
1f92cd38cabcac55f53583ff74d369ff
SHA1 hash:
2275f5b0aec3f7d17854906bb5a7f00451d1d31f
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/8c09aaa4-17e8-40d9-ab3f-a63c8abc7c8a/
Parent samples :
69f684f1e3a4c73362a0e9d775ec1717be3e730bee70a096b578775c0df39ddf
4347740628dde81f0d24411f390e00f168155026dae9bc80e2e6837e381860a0
f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b
3ab9c6d950c228d286795fd61b70a4bd7c1c3de889ccac47dc68d5f23a24408e
8c3a0f760deceeb69b81b809d2a16cb2ff5979f4b332fc4243eed61fb2111e17
3543cb3f9359037b6f177ab44ef175f17017381b33759d9709b46268f248012a
d28358e40350fd9a8b4433a33131b7f567d66c1f9a20b6bd276178b585304580
e36801a3e24d697a55c6b00e156a88d1a27d81b83ab4c50f1ec6e6ca7d455d31
e28ab1b33d7446770039a494f9642261f70e85d95439f22bc61e6267c21b53c9
74a3ca19e62c2633b41517a640acf4e1e9d8588c9c7829fef8dc2602fd242e8d
SH256 hash:
1fdfb9edbc18255a77c108b44bf8e2449a59719568656e7a72bd1a92514640f3
MD5 hash:
4ea0ec48bccaa7287ebbaf9d6c3258b6
SHA1 hash:
caf1c43a3f1fe35d8efacd5e18f5fd5def153ccd
Link:
https://www.unpac.me/results/8c09aaa4-17e8-40d9-ab3f-a63c8abc7c8a/
SH256 hash:
b5524f875b1a44dfb329c3d2a18468107bcca926e382fc34727b53a6d5f00abd
MD5 hash:
cdf24b9268d1783a98cea3f1cff8d235
SHA1 hash:
153aa5d6932e095e54024e686199bf1aacde0d98
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8c09aaa4-17e8-40d9-ab3f-a63c8abc7c8a/
Malware family:
zgRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f280bb4d1036/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f280bb4d1036eb4e6e7410ed52db364722e9d0efab5f4030834488f0136bc52b

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: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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/550/

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 (HIGH_ENTROPY_VA)high

Comments