MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cfc48dfa8aa74b169189104a5f606cb6738fac9828808dfb1e64cbbd3564f10d. 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: 16
| SHA256 hash: | cfc48dfa8aa74b169189104a5f606cb6738fac9828808dfb1e64cbbd3564f10d |
|---|---|
| SHA3-384 hash: | a9059b275c3bfec0a720c0af99687e3497cb1f31425ad4f0996a4fcfb3ffb984e0a8c9c576775183198038a31883049a |
| SHA1 hash: | 42d38477d238f5df97b03f14f99425db17fa526d |
| MD5 hash: | 7508e1be2da5b290424f893d5133e4ed |
| humanhash: | aspen-oregon-black-october |
| File name: | 7508e1be2da5b290424f893d5133e4ed |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 515'584 bytes |
| First seen: | 2023-07-24 09:40:45 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 12288:KlPLeUUExXxIRYS+RmiVDK2yOe+FDYmaPLVO03:KlPLeWxhIRlav/oO |
| Threatray | 2'277 similar samples on MalwareBazaar |
| TLSH | T15FB412C83690B5CFC4AFD53A8ABC0C54A72060BB6747D157E82356ADDB0D54BEE091B3 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
336
Origin country :
FRVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
00499393.xls
Verdict:
Malicious activity
Analysis date:
2023-07-24 09:09:15 UTC
Tags:
opendir exploit cve-2017-11882 rat remcos remote loader stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
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)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Trojan.Remcos
Status:
Malicious
First seen:
2023-07-24 09:41:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 2'267 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost collection rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
pekonomie.duckdns.org:31490
Unpacked files
SH256 hash:
d4d91aab63d903963aa49476272eec943f55bf73f3be9b3c308563d4dddaec02
MD5 hash:
c48307242c27aaf68bec52628b73ed5c
SHA1 hash:
f5b6a8aa2908a9dd9f0a22a5ed204fdb22ac1be9
Detections:
Remcos
win_remcos_auto
SH256 hash:
5c0937eac910784b16bc87e7e046e7b2273ff0eac28656cd632ddbd962b433d7
MD5 hash:
f09bb50ed355b25fb00647e2d04404cc
SHA1 hash:
185838c0b390cf7be608f5cc9df97e87a8880d8d
SH256 hash:
cfc48dfa8aa74b169189104a5f606cb6738fac9828808dfb1e64cbbd3564f10d
MD5 hash:
7508e1be2da5b290424f893d5133e4ed
SHA1 hash:
42d38477d238f5df97b03f14f99425db17fa526d
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AlphaCrypt
Score:
1.00
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: | iexplorer_remcos |
|---|---|
| Author: | iam-py-test |
| Description: | Detect iexplorer being taken over by Remcos |
| Rule name: | INDICATOR_EXE_Packed_ConfuserEx |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with ConfuserEx Mod |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | pe_imphash |
|---|
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Windows_Trojan_Remcos_b296e965 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.remcos. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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