MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c5ca08ab6e50efcb71f7d20259bfae595af46513786bf9d130bf0e484a6d77f. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c5ca08ab6e50efcb71f7d20259bfae595af46513786bf9d130bf0e484a6d77f
SHA3-384 hash: 09f363f35f2b1fb1e0faa4ba291e8e02b8f8f6db43c2fc6dcc7b59a843635b9b98212065497afec6a9c996e416286f88
SHA1 hash: 8da93d967db75b5db5e7a7da4df70a298ef32109
MD5 hash: a4a14e221f9e663a8928b8bbe6ef6a6b
humanhash: snake-glucose-sad-massachusetts
File name:ADJUNTO_EXTRACTO_1718983652577559998296647625_03867146902629304914898877443_82532103783739223474532_6326080594026152_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:278'016 bytes
First seen:2020-08-06 05:42:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:PhaClonc4YQKPE/E91KNyM/KbY2vci8IG3idaeOKYdC:Ph2dKPE/E9kUYvh7q3Od
Threatray 787 similar samples on MalwareBazaar
TLSH A1449D123A24F739C1696A3783DF096407B318D69937EB97BFCEED8501196522D2332E
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM11-BN8-obe.outbound.protection.outlook.com
Sending IP: 40.92.20.105
From: info. Extracto <tesoreria015procolombia@outlook.es>
Subject: EXTRACTO SERFINANZA.
Attachment: ADJUNTO_EXTRACTO_1718983652577559998296647625_03867146902629304914898877443_82532103783739223474532_ (contains "ADJUNTO_EXTRACTO_1718983652577559998296647625_03867146902629304914898877443_82532103783739223474532_6326080594026152_pdf.exe")

RemcosRAT C2:
recuperaciondecartera.website:6790

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40064/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/412123
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Detected Remcos RAT
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 258301 Sample: 6152_pdf.exe Startdate: 06/08/2020 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Detected Remcos RAT 2->50 52 4 other signatures 2->52 10 6152_pdf.exe 2 2->10         started        13 PXServiceNet.exe 2 2->13         started        15 PXServiceNet.exe 2 2->15         started        process3 signatures4 54 Contains functionalty to change the wallpaper 10->54 56 Contains functionality to steal Chrome passwords or cookies 10->56 58 Contains functionality to capture and log keystrokes 10->58 60 2 other signatures 10->60 17 6152_pdf.exe 4 5 10->17         started        20 PXServiceNet.exe 13->20         started        22 PXServiceNet.exe 13->22         started        24 PXServiceNet.exe 15->24         started        process5 file6 38 C:\Users\user\AppData\...\PXServiceNet.exe, PE32 17->38 dropped 40 C:\Users\...\PXServiceNet.exe:Zone.Identifier, ASCII 17->40 dropped 26 wscript.exe 1 17->26         started        process7 process8 28 cmd.exe 1 26->28         started        process9 30 PXServiceNet.exe 2 28->30         started        33 conhost.exe 28->33         started        signatures10 62 Contains functionalty to change the wallpaper 30->62 64 Machine Learning detection for dropped file 30->64 66 Contains functionality to steal Chrome passwords or cookies 30->66 68 2 other signatures 30->68 35 PXServiceNet.exe 2 4 30->35         started        process11 dnsIp12 42 recuperaciondecartera.website 186.169.56.143, 6790 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 35->42 44 192.168.2.1 unknown unknown 35->44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c5ca08ab6e50efcb71f7d20259bfae595af46513786bf9d130bf0e484a6d77f/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-08-06 05:44:07 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=drokbcvw4uhpzny7puqclg724wk26rsrg6dl7hitbpyojbfg257q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
13eaaf168207a5014c105532b6a23805fc6db28f73908914a4583979173cc254
RemcosRAT
2f07a5d8c1e6ac465e5d306b0fb8335aa41f3204b9bf9793337a849a93921a9a
RemcosRAT
314d26bc5fe146f5040c40b8c5b889e6e90cb0b22ec694564c1182d49c3bf950
RemcosRAT
397545efcbf53bebabdb003bbe9f8b619b7ffdd5383c21ecd9e99c6de3e3cd83
RemcosRAT
3bdfaf82d5d56f2546be44b3355f8d72cc0508984586e0fba3d704a5adabf7d1
RemcosRAT
64ba0f4265f9ed3f3f9315ee0256b360827074d5f898a7eb07ed98dd5f7fec7e
RemcosRAT
b3ae13e392ebe3eec95949395786577344472af7588ed1db4577c597a417e8a4
RemcosRAT
c8c1e04edd5c422d065e27a3a73931d373de200419cd9ba649fdfadee686e5f2
RemcosRAT
d03674f0452d3be687784b62b84f2cb32e6d8dd59beaeccd1608b07cae1aef4f
RemcosRAT
d69aa1932b2e702e5065ee19da9fc9cf2b05e7dbaa617141b14eaa501a14955e
RemcosRAT
+ 777 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200806-v26w9w8cgx/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
recuperaciondecartera.website:6790
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/1c5ca08ab6e50efcb71f7d20259bfae595af46513786bf9d130bf0e484a6d77f

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

RemcosRAT

rar fe2c29e5fe1ff0b53611c96fd0a5c927d5134ab0ecd863bad7bae2930350ca2b

RemcosRAT

Executable exe 1c5ca08ab6e50efcb71f7d20259bfae595af46513786bf9d130bf0e484a6d77f

(this sample)

  
Dropped by
MD5 dbce7bf079c9f9f30d386f1905b0fb3e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/40064/
  
Dropped by
SHA256 fe2c29e5fe1ff0b53611c96fd0a5c927d5134ab0ecd863bad7bae2930350ca2b

Comments