MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba1b869e5e44cc25d8128cd5f25bf37b3bdfc986b1d74cbc506b2cc129f308a1. 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



RemcosRAT


Vendor detections: 19


Intelligence 19 IOCs YARA 6 File information Comments

SHA256 hash: ba1b869e5e44cc25d8128cd5f25bf37b3bdfc986b1d74cbc506b2cc129f308a1
SHA3-384 hash: df17d50b2db858a09dc4e6b4732524f22cb84f26a03e9b72a84f7348ab470a7da50dddd75689897b2a0ce71a96ce9f49
SHA1 hash: 40837043212fbfc646c810dc7d41ffa3d7ad2e85
MD5 hash: 2fce8571fda079d879747f914fe737d7
humanhash: florida-potato-eleven-orange
File name:Purchase Order.exe
Download: download sample
Signature RemcosRAT
File size:942'080 bytes
First seen:2025-05-07 20:31:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:/K8UWvvxfA2RTHuUjqCPLR16nNzXS0t62kWlY6C:e4YWh+CjSNzX7tLlaD
Threatray 1'016 similar samples on MalwareBazaar
TLSH T1141512985B45D923C8B607700B71E27427759E8EFA20D71B8FE92DEBB813B506D0C366
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
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
585
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Purchase Order.exe
Verdict:
Malicious activity
Analysis date:
2025-05-07 20:33:20 UTC
Tags:
remcos rat remote

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
micro spawn sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context masquerade obfuscated packed packed packer_detected vbnet
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1683672 Sample: Purchase Order.exe Startdate: 07/05/2025 Architecture: WINDOWS Score: 100 48 geoplugin.net 2->48 56 Suricata IDS alerts for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 13 other signatures 2->62 8 HkbBQp.exe 5 2->8         started        11 Purchase Order.exe 7 2->11         started        signatures3 process4 file5 64 Antivirus detection for dropped file 8->64 66 Multi AV Scanner detection for dropped file 8->66 68 Contains functionalty to change the wallpaper 8->68 74 4 other signatures 8->74 14 HkbBQp.exe 8->14         started        17 MpCmdRun.exe 1 8->17         started        19 schtasks.exe 1 8->19         started        40 C:\Users\user\AppData\Roaming\HkbBQp.exe, PE32 11->40 dropped 42 C:\Users\user\...\HkbBQp.exe:Zone.Identifier, ASCII 11->42 dropped 44 C:\Users\user\AppData\Local\...\tmp3639.tmp, XML 11->44 dropped 46 C:\Users\user\...\Purchase Order.exe.log, ASCII 11->46 dropped 70 Adds a directory exclusion to Windows Defender 11->70 72 Injects a PE file into a foreign processes 11->72 21 Purchase Order.exe 2 14 11->21         started        24 powershell.exe 23 11->24         started        26 schtasks.exe 1 11->26         started        28 Purchase Order.exe 11->28         started        signatures6 process7 dnsIp8 30 conhost.exe 17->30         started        32 conhost.exe 19->32         started        50 196.251.92.49, 49693, 51010 Web4AfricaZA Seychelles 21->50 52 geoplugin.net 178.237.33.50, 49694, 80 ATOM86-ASATOM86NL Netherlands 21->52 54 127.0.0.1 unknown unknown 21->54 76 Detected Remcos RAT 21->76 78 Loading BitLocker PowerShell Module 24->78 34 WmiPrvSE.exe 24->34         started        36 conhost.exe 24->36         started        38 conhost.exe 26->38         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-05-07 07:29:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
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
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
127.0.0.1:51010
196.251.92.49:51010
oni17.duckdns.org:51010
Unpacked files
SH256 hash:
ba1b869e5e44cc25d8128cd5f25bf37b3bdfc986b1d74cbc506b2cc129f308a1
MD5 hash:
2fce8571fda079d879747f914fe737d7
SHA1 hash:
40837043212fbfc646c810dc7d41ffa3d7ad2e85
SH256 hash:
999dfac280bb21991b629378ca9c7c4e3a63a4cf4f97973b75549a4a81ec9694
MD5 hash:
d20b2948c6e1198ca8375e381216ff26
SHA1 hash:
8fea7c76b81a130b22c4f61164d91f83588848b6
Detections:
win_remcos_w0 win_remcos_auto Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
SH256 hash:
44f42e8fd76bd7506455d10f023fed014b242bd81bbccbe422c23b744ca875bb
MD5 hash:
8d829ce54e4ae88144216597a08fd2ba
SHA1 hash:
ab73630ac99f1a94f952d018a8dd272ef06a6b5e
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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

RemcosRAT

Executable exe ba1b869e5e44cc25d8128cd5f25bf37b3bdfc986b1d74cbc506b2cc129f308a1

(this sample)

  
Delivery method
Distributed via e-mail attachment

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