MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584. 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: 18


Intelligence 18 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
SHA3-384 hash: ab10e7190889219e97f252473676835433a7ff77592ab3d967189227f5b51ad2135ce2132776f222c55d1be6bfc98140
SHA1 hash: d488f73af3fc96272ed24d44a8d74f8198d1ca5d
MD5 hash: efa99a14cc37d38f81657dc8205e0a0d
humanhash: helium-five-failed-robert
File name:哈其德-ICS2公告 (00000002).pdf.................................................................................................scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:965'120 bytes
First seen:2025-03-05 06:08:40 UTC
Last seen:2025-03-05 06:19:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:T75sVn7R+HyQLi4flhOrIF2BX9zXKeg6AxytCG3rh7vdm:TaFwHyQLiSeqwx6eskxbh7vd
Threatray 4'713 similar samples on MalwareBazaar
TLSH T1E62512685B86E017CE959B780961F3B417BC4DDCBA15D2139FECBCAFFA22E140C58192
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 threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
496
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
5fa82173-edf5-43c1-b883-8f4f15c225ea
Verdict:
Malicious activity
Analysis date:
2025-03-05 06:10:18 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/5fa82173-edf5-43c1-b883-8f4f15c225ea

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.4.2145.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c7eccec668b65489bf1339
Tags:
packed shell lien sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/141dc601-4f35-42b1-a678-2263693a6ae4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1629757
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Creates autostart registry keys with suspicious names
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1629757 Sample: .....scr.exe Startdate: 05/03/2025 Architecture: WINDOWS Score: 100 56 geoplugin.net 2->56 66 Suricata IDS alerts for network traffic 2->66 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 8 other signatures 2->72 10 .....scr.exe 3 2->10         started        14 Adobe.exe 2 2->14         started        16 Adobe.exe 2->16         started        18 Adobe.exe 2->18         started        signatures3 process4 file5 54 C:\Users\user\AppData\...\.....scr.exe.log, ASCII 10->54 dropped 88 Contains functionality to bypass UAC (CMSTPLUA) 10->88 90 Contains functionalty to change the wallpaper 10->90 92 Contains functionality to steal Chrome passwords or cookies 10->92 96 2 other signatures 10->96 20 .....scr.exe 2 4 10->20         started        94 Injects a PE file into a foreign processes 14->94 24 Adobe.exe 14->24         started        26 Adobe.exe 14->26         started        28 Adobe.exe 16->28         started        30 backgroundTaskHost.exe 16->30         started        32 Adobe.exe 18->32         started        signatures6 process7 file8 50 C:\ProgramData\Adobe-Reader\Adobe.exe, PE32 20->50 dropped 52 C:\ProgramData\...\Adobe.exe:Zone.Identifier, ASCII 20->52 dropped 74 Creates autostart registry keys with suspicious names 20->74 34 Adobe.exe 3 20->34         started        signatures9 process10 signatures11 62 Multi AV Scanner detection for dropped file 34->62 64 Injects a PE file into a foreign processes 34->64 37 Adobe.exe 4 14 34->37         started        process12 dnsIp13 58 104.250.180.178, 49739, 49741, 7902 M247GB United States 37->58 60 geoplugin.net 178.237.33.50, 49742, 80 ATOM86-ASATOM86NL Netherlands 37->60 76 Writes to foreign memory regions 37->76 78 Maps a DLL or memory area into another process 37->78 41 recover.exe 1 37->41         started        44 recover.exe 1 37->44         started        46 recover.exe 2 37->46         started        48 2 other processes 37->48 signatures14 process15 signatures16 80 Tries to steal Instant Messenger accounts or passwords 41->80 82 Tries to harvest and steal browser information (history, passwords, etc) 41->82 84 Tries to steal Mail credentials (via file / registry access) 44->84 86 Tries to steal Mail credentials (via file registry) 48->86
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-03-05 06:00:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6qciyfd2owhlkqj2rbnbfru7uxgrwylgrltgrfblzn4jfz7wewca._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
Similar samples:
65b7cf7ab546e94fad0cbce12c9756dcb2af4aa833943beffdfcc448e00e4449
RemcosRAT
712b2ac1987715d8f00efee1564134d975790138d938cdd4dade04902db22b15
RemcosRAT
ee2316fc3e02711a80d5b5d760000fb0c9c7612e7e263cec835a9d32699c3531
RemcosRAT
error
RemcosRAT
f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
RemcosRAT
f96d8c627027bb1530f7e499e6e86c8f6b1724a2edab6e4faeaf10fea74be0ae
RemcosRAT
fd7c0568b92dc7045ab2f3c96ba04630a0456bcae69ab5a32c1e90a35b62b831
RemcosRAT
+ 4'703 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/250305-gwg1ks1mv5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Program crash
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dc08e779-3c4d-45f7-908f-7c25995de804
Unpacked files
SH256 hash:
f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
MD5 hash:
efa99a14cc37d38f81657dc8205e0a0d
SHA1 hash:
d488f73af3fc96272ed24d44a8d74f8198d1ca5d
Link:
https://www.unpac.me/results/3120e5be-f5cd-4668-9eff-a20fc65307b7/
SH256 hash:
b271cb7b49bf05dd326425c8db8bf89cf441115969916e03bfd873c3b82c873d
MD5 hash:
20a81ed541b4b9a09959cbb0f106d723
SHA1 hash:
8331be333f63145ae79a4f767b75069718c444de
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/3120e5be-f5cd-4668-9eff-a20fc65307b7/
SH256 hash:
daf4f1d48b812a6e017f0f9f45ead57ac066e403f4ac7c0dfecae43d7d7e9b6f
MD5 hash:
c44baa611dd19524e27351a2a57b1fc6
SHA1 hash:
96a412c2d9bca5807f356340c67c146055fbe781
Link:
https://www.unpac.me/results/3120e5be-f5cd-4668-9eff-a20fc65307b7/
SH256 hash:
f6e208dbd8631cac4c61bbd86470a678fc1c55361c52b5bb74dff9846935786c
MD5 hash:
20817931b9818e57f472b6fe15aea26e
SHA1 hash:
96c91709547f37f370b5e56ea3b8d9b06fa9e7ac
Detections:
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/3120e5be-f5cd-4668-9eff-a20fc65307b7/
Parent samples :
2055e5a5204986da592e72c27400034b4cc1c940acacd8c2a093861f3cde5e5a
78a5958d02189160abf7e588dada6295e444b6522a45b8f556878ff56058edbc
4816f58220b5e07a83eb4a918fe200eb7317472efee4f9f1b27ab3de2a01ff9e
f96d8c627027bb1530f7e499e6e86c8f6b1724a2edab6e4faeaf10fea74be0ae
65b7cf7ab546e94fad0cbce12c9756dcb2af4aa833943beffdfcc448e00e4449
f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584
e8fa06add1e83397ada8e5d1816a8e9ae2b3f6e86ec3d4a1264436cee4a26e25
ff3d90e2170a8b7046ea85bebee200591bb79717ec62c062ab14f75d01d438f5
cf6365bfb6ff4604e981baa9fab6a5f57c141e58a50401d8c273ab02844b7dbd
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4048c147a75/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/f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Malspam

RemcosRAT

Executable exe f4048c147a758eb5413a885a12c69fa5cd1b61668ae668942bcb7892e7f62584

(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 (GUARD_CF)high

Comments