MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c. 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


LummaStealer


Vendor detections: 9


Intelligence 9 IOCs YARA 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c
SHA3-384 hash: a1e84daadfe67d7fa9bbc034553aba63b9c5a97a63c8d7b07d47f84e442ab68481737f33bc39408d4f105918ac7a82a3
SHA1 hash: 0fc6d6a2887b18d8bd931151c8015d86429a8389
MD5 hash: 0960024eb037c62476bc4d22db17f864
humanhash: steak-double-steak-leopard
File name:L2703900.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:2'761'072 bytes
First seen:2026-07-13 00:07:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1aae8bf580c846f39c71c05898e57e88 (247 x LummaStealer, 99 x SalatStealer, 18 x ValleyRAT)
ssdeep 24576:9Hf9kGKrug/LrfcGGt3Ydcm13EyKm7dsg6SkgIiutw7JQ3QfvaTYayABF6d1OeOd:9/9RTt+IOKV0aV6d1OQFxbsJdR3
TLSH T105D55B51FEC745F2E807163295E763AF2339AD054F35DB93EB047A79EA7B2D10822209
TrID 48.7% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.1% (.EXE) Win64 Executable (generic) (6522/11/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter aachum
Tags:ACRStealer dropped-by-RemusStealer exe logs-incidentmanager-cc not-LummaStealer signed

Code Signing Certificate

Organisation:anthropic.com
Issuer:anthropic.com
Algorithm:sha256WithRSAEncryption
Valid from:2026-07-11T18:29:28Z
Valid to:2027-07-11T18:29:28Z
Serial number: 33545c22e949a7fe
Thumbprint Algorithm:SHA256
Thumbprint: 486f2ef0194c2b4e985dbd9b62437861f8fe2ba4adf20513cef6c8261894bba0
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
iamaachum
https://pub-df8fc65cb16a493f9ebe527a9db8c1f6.r2.dev/L2703900.exe

ACRStealer C2: https://logs.incidentmanager.cc/

Intelligence

File Origin
# of uploads :
1
# of downloads :
176
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/74363/
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.81448987.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a542c7ea53b0ea1c820e9c3
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Connection attempt
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm base64 crypto golang signed
Link:
https://www.filescan.io/uploads/6a542c79550b01e7e8bc623c/reports/5e6bc0a2-95c1-48c2-aec7-27dc36cdc8b1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-11T16:41:00Z UTC
Last seen:
2026-07-14T09:22:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/4d221315-8bcf-4946-ba2b-b24cfb88bd2e
Result
Threat name:
ACR Stealer, GO Stealer, REMUS Stealer,
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1941268
Signature
AI detected suspicious PE / MSI digital signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops PE files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Injects a PE file into a foreign processes
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sample uses process hollowing technique
Sets debug register (to hijack the execution of another thread)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Unusual module load detection (module proxying)
Uses cmd line tools excessively to alter registry or file data
Writes to foreign memory regions
Yara detected ACR Stealer
Yara detected GO Stealer
Yara detected REMUS Stealer
Yara detected ZigClipper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1941268 Sample: L2703900.exe Startdate: 13/07/2026 Architecture: WINDOWS Score: 100 33 bsc.blockrazor.xyz 2->33 35 kffd3.vexlatech.cc 2->35 57 Suricata IDS alerts for network traffic 2->57 59 Antivirus detection for dropped file 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 65 9 other signatures 2->65 8 L2703900.exe 3 2->8         started        13 i3dkzhZJ4ZOpRZ9I.exe 2->13         started        signatures3 63 Performs DNS queries to domains with low reputation 33->63 process4 dnsIp5 43 logs.incidentmanager.cc 172.67.200.35, 443, 49700, 49701 CLOUDFLARENET-CloudflareIncUS Canada 8->43 45 gogolfonline.com 176.53.159.66, 443, 49719 ORACLE-BMC-31898-OracleCorporationUS Turkey 8->45 47 8.8.8.8, 443, 49699, 49718 GOOGLE-GoogleLLCUS United States 8->47 29 C:\Users\user\...\i3dkzhZJ4ZOpRZ9I.exe, PE32+ 8->29 dropped 71 Found many strings related to Crypto-Wallets (likely being stolen) 8->71 73 Tries to harvest and steal browser information (history, passwords, etc) 8->73 75 Tries to steal Crypto Currency Wallets 8->75 83 4 other signatures 8->83 15 i3dkzhZJ4ZOpRZ9I.exe 1 8->15         started        19 chrome.exe 8->19         started        77 Uses cmd line tools excessively to alter registry or file data 13->77 79 Writes to foreign memory regions 13->79 81 Allocates memory in foreign processes 13->81 85 3 other signatures 13->85 21 ServiceModelReg.exe 13->21         started        file6 signatures7 process8 file9 31 C:\Users\user\...\i3dkzhZJ4ZOpRZ9I.exe, PE32+ 15->31 dropped 49 Antivirus detection for dropped file 15->49 51 Multi AV Scanner detection for dropped file 15->51 53 Uses cmd line tools excessively to alter registry or file data 15->53 55 7 other signatures 15->55 23 ServiceModelReg.exe 12 15->23         started        27 chrome.exe 19->27         started        signatures10 process11 dnsIp12 37 kffd3.vexlatech.cc 172.67.223.133, 443, 49723 CLOUDFLARENET-CloudflareIncUS Canada 23->37 39 bsc.blockrazor.xyz 104.26.9.35, 443, 49722 CLOUDFLARENET-CloudflareIncUS Canada 23->39 67 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 23->67 69 Unusual module load detection (module proxying) 23->69 41 www.google.com 142.251.157.119, 443, 49715 GOOGLE-GoogleLLCUS United States 27->41 signatures13
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/0960024eb037c62476bc4d22db17f864
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c/
Threat name:
Win32.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-07-12 19:57:15 UTC
File Type:
PE (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xby7kcv327qg43n63z4pjgoc57ccnv7yxiejipyg4ecpqlmozqga._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/260713-ae3gmahz9q/
Behaviour
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Suspicious use of NtCreateUserProcessOtherParentProcess
Unpacked files
SH256 hash:
b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c
MD5 hash:
0960024eb037c62476bc4d22db17f864
SHA1 hash:
0fc6d6a2887b18d8bd931151c8015d86429a8389
Link:
https://www.unpac.me/results/80e56f0e-7616-4059-8a54-fe3d6dd802e9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b871f50abbd7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/

File information

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

Web download

LummaStealer

Executable exe b871f50abbd7e06e6dbede78f499c2efc426d7f8ba08943f06e104f82d8ecc0c

(this sample)

  
Link
https://tria.ge/260712-31njtahz2q/behavioral1
  
Dropped by
RemusStealer
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/74363/

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