MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 879ebda15ee112aeb9ab2af26cf2cd59967cd64ced4fdafc3e571caf100ea5f9. 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: 15


Intelligence 15 IOCs YARA 16 File information Comments

SHA256 hash: 879ebda15ee112aeb9ab2af26cf2cd59967cd64ced4fdafc3e571caf100ea5f9
SHA3-384 hash: 16229ef5efeba1eef48fdcea9896652597ef8f56db333612fb905a8f879841a872f24136f4af092a53a47f713fdea75c
SHA1 hash: 62a4f8ec4da263a514864393480949ddfbf26502
MD5 hash: 04ece47ec15af25de415d098b03ae978
humanhash: apart-saturn-white-neptune
File name:msedge_elf.dll
Download: download sample
Signature RemcosRAT
File size:11'471'012 bytes
First seen:2025-09-03 08:53:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a2b303e926eb240cd7d8a9918edd7322 (1 x RemcosRAT)
ssdeep 98304:GtT+6cKsASd15TQgaqfB6JlbOx48+XSw7BxO8i:Gty/K015TQZqJ6JIx45XSw7BxTi
TLSH T1CDC63A70C39151A1D2D7C870CE964FF965E1787B40365D0E16C4F82A29FEF21AF9E2A2
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
msedge_elf.dll
Verdict:
Malicious activity
Analysis date:
2025-09-03 08:47:51 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
shellcode dropper emotet virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto fingerprint masquerade microsoft_visual_cc overlay packed
Verdict:
Malicious
File Type:
dll x64
First seen:
2025-09-02T23:12:00Z UTC
Last seen:
2025-09-02T23:12:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Agent.sb
Result
Threat name:
Codoso Ghost, Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Accesses ntoskrnl, likely to find offsets for exploits
Accesses win32k, likely to find offsets for exploits
Allocates memory in foreign processes
Drops PE files with a suspicious file extension
Drops PE files with benign system names
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Renames NTDLL to bypass HIPS
Renames wscript.exe to bypass HIPS
Sample is not signed and drops a device driver
Sigma detected: Creation of an WerFault.exe in Unusual Folder
Sigma detected: Drops fake bootloader file
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Windows Binaries Write Suspicious Extensions
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected Codoso Ghost
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1770193 Sample: msedge_elf.dll.exe Startdate: 03/09/2025 Architecture: WINDOWS Score: 100 64 Suricata IDS alerts for network traffic 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 8 other signatures 2->70 8 loaddll64.exe 1 2->8         started        process3 process4 10 rundll32.exe 422 8->10         started        14 cmd.exe 1 8->14         started        16 rundll32.exe 309 8->16         started        18 31 other processes 8->18 file5 46 C:\Users\user\...\csrss.exe, PE32+ 10->46 dropped 48 C:\Users\user\...\chcp.com, PE32+ 10->48 dropped 58 369 other files (1 malicious) 10->58 dropped 80 Drops PE files with a suspicious file extension 10->80 82 Writes to foreign memory regions 10->82 84 Allocates memory in foreign processes 10->84 86 Drops PE files with benign system names 10->86 20 conhost.exe 10->20         started        22 rundll32.exe 417 14->22         started        50 C:\Users\user\...\winload.efi, PE32+ 16->50 dropped 60 261 other files (1 malicious) 16->60 dropped 88 Accesses ntoskrnl, likely to find offsets for exploits 16->88 90 Modifies the context of a thread in another process (thread injection) 16->90 92 Injects a PE file into a foreign processes 16->92 26 conhost.exe 16->26         started        52 C:\Users\user\...\wininit.exe, PE32+ 18->52 dropped 54 C:\Users\user\...\win32kns.sys, PE32+ 18->54 dropped 56 C:\Users\user\...\win32kfull.sys, PE32+ 18->56 dropped 62 3098 other files (17 malicious) 18->62 dropped 94 Accesses win32k, likely to find offsets for exploits 18->94 96 Renames NTDLL to bypass HIPS 18->96 98 Renames wscript.exe to bypass HIPS 18->98 100 Sample is not signed and drops a device driver 18->100 28 conhost.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 18->32         started        34 13 other processes 18->34 signatures6 process7 file8 38 C:\Users\user\...\wer.dll, PE32+ 22->38 dropped 40 C:\Users\user\...\slmgr.vbs, ASCII 22->40 dropped 42 C:\Users\user\...\xwtpw32.dll, PE32+ 22->42 dropped 44 363 other files (none is malicious) 22->44 dropped 72 Accesses ntoskrnl, likely to find offsets for exploits 22->72 74 Writes to foreign memory regions 22->74 76 Allocates memory in foreign processes 22->76 78 2 other signatures 22->78 36 conhost.exe 22->36         started        signatures9 process10
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-09-03 05:20:29 UTC
File Type:
PE+ (Dll)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:enki collection defense_evasion discovery persistence rat trojan
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
196.251.92.69:28288
Unpacked files
SH256 hash:
879ebda15ee112aeb9ab2af26cf2cd59967cd64ced4fdafc3e571caf100ea5f9
MD5 hash:
04ece47ec15af25de415d098b03ae978
SHA1 hash:
62a4f8ec4da263a514864393480949ddfbf26502
Malware family:
WebBrowserPassView
Verdict:
Malicious
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:CP_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:Lumma_Stealer_Detection
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_CMD_Powershell_Usage
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
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Malspam

RemcosRAT

Executable exe 879ebda15ee112aeb9ab2af26cf2cd59967cd64ced4fdafc3e571caf100ea5f9

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments