MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f. 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 29 File information Comments
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SHA256 hash: 7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f
SHA3-384 hash: 88ba620c8595f56702e87062ab412b450a7271b09c87ad64be9e2a92c8c17ce042a0aff192b7e0aefad869403d7abb4e
SHA1 hash: c7a0ea8ffa3e1c56676bf4d92e5222f8200f053a
MD5 hash: 20b6728d8649520b80360741214324a5
humanhash: five-skylark-magnesium-cold
File name:New_Quotations.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:405'672 bytes
First seen:2023-11-13 06:38:07 UTC
Last seen:2023-11-13 08:22:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 12288:HmlmZFkWBf3Cv1AItHtWpbmBEGjounjjLdhs6x:GuFXx3q1AIptlSGjoOjjLbs6x
TLSH T1C08412CBF2E1846BD05319796A3B7E65EA27AE3908D03A9F57107F2B04334C39A52753
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0e27272323e3e7e (1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
319
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/458280/
Detection(s):
SecuriteInfo.com.FileRepMalware.10690.21020.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6551c489993fbf888b731539/reports/2d6c1b38-b453-47a4-ae7b-70f8ecafb9a5/overview
Verdict:
Suspicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c876d217-e53a-4ef9-88e2-c7b6125fbdaf
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/1341518
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
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 unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
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)
Tries to steal Mail credentials (via file registry)
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: 1341518 Sample: New_Quotations.exe Startdate: 13/11/2023 Architecture: WINDOWS Score: 100 40 geoplugin.net 2->40 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for URL or domain 2->58 60 8 other signatures 2->60 9 New_Quotations.exe 17 2->9         started        12 bwwg.exe 2->12         started        15 bwwg.exe 2->15         started        signatures3 process4 file5 38 C:\Users\user\AppData\Local\...\njdktlcou.exe, PE32 9->38 dropped 17 njdktlcou.exe 1 2 9->17         started        66 Multi AV Scanner detection for dropped file 12->66 68 Contains functionality to bypass UAC (CMSTPLUA) 12->68 70 Contains functionalty to change the wallpaper 12->70 74 7 other signatures 12->74 21 bwwg.exe 12->21         started        72 Maps a DLL or memory area into another process 15->72 23 bwwg.exe 15->23         started        signatures6 process7 file8 36 C:\Users\user\AppData\Roaming\...\bwwg.exe, PE32 17->36 dropped 46 Multi AV Scanner detection for dropped file 17->46 48 Detected unpacking (changes PE section rights) 17->48 50 Tries to steal Mail credentials (via file registry) 17->50 52 4 other signatures 17->52 25 njdktlcou.exe 3 514 17->25         started        signatures9 process10 dnsIp11 42 5.196.117.233, 2023, 49708, 49709 OVHFR France 25->42 44 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 25->44 62 Tries to harvest and steal browser information (history, passwords, etc) 25->62 64 Maps a DLL or memory area into another process 25->64 29 njdktlcou.exe 1 25->29         started        32 njdktlcou.exe 1 25->32         started        34 njdktlcou.exe 2 25->34         started        signatures12 process13 signatures14 76 Tries to steal Instant Messenger accounts or passwords 29->76 78 Tries to steal Mail credentials (via file / registry access) 29->78 80 Tries to harvest and steal browser information (history, passwords, etc) 32->80
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-11-13 06:39:05 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=plt3y42qgcep3asncxhukhnfei32fnvwlilz3rirct6acujmsm7q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:rhost collection persistence rat spyware stealer upx
Link:
https://tria.ge/reports/231113-hemp6sah3s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
5.196.117.233:2023
Unpacked files
SH256 hash:
3b287538814d4cf8ec19bde11650fd7ee61d4b4cfcb85ff26530f7379601f0ef
MD5 hash:
e08f62afbbe653c675b561b6224576ed
SHA1 hash:
379dbea7d928ccdc6e944520ba2d1ab136c7839e
Link:
https://www.unpac.me/results/d8c4409e-fc25-4fca-a0f8-872269ca9bf4/
SH256 hash:
7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f
MD5 hash:
20b6728d8649520b80360741214324a5
SHA1 hash:
c7a0ea8ffa3e1c56676bf4d92e5222f8200f053a
Link:
https://www.unpac.me/results/d8c4409e-fc25-4fca-a0f8-872269ca9bf4/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7ae7bc735030/report/overview.html
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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_3
Create hunting rule
Author:Kevin Falcoz
Description:UPX 3.X
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
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_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
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe 7ae7bc73503088fd824d15cf451da52237a2b6b65a179dc51114fc01512c933f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/458280/

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