MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34. 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: 14


Intelligence 14 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34
SHA3-384 hash: a606c5308a2dc393a7f1d171a617ea50c39a42a927098ffeb5e7e8114339ce3048a3152017aba301217a671c45fe9e49
SHA1 hash: 075d072187562c6465a45fb969ea2a92d7946449
MD5 hash: d472c151fc27c5832f21fbce88be6d54
humanhash: ten-hot-paris-east
File name:Swift 35127__17.04.2023_Dt.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:155'136 bytes
First seen:2023-04-17 12:33:04 UTC
Last seen:2023-05-03 11:57:22 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 3072:jl2I/79MxEmXTJjJ9hXwiSW4du2PmfMkhKDDT:jlR7m1jJ5ydsmD
Threatray 1'872 similar samples on MalwareBazaar
TLSH T120E318C27799C972F63D47B56837854912B3ED6AB451D21EBC8972B44E3F3CA0006AB3
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)
File icon (PE):PE icon
dhash icon 8ab2b2a69ab2829a (10 x AgentTesla, 2 x RemcosRAT, 2 x NanoCore)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
258
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Swift 35127__17.04.2023_Dt.exe
Verdict:
Malicious activity
Analysis date:
2023-04-17 12:34:45 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/117f0762-b583-496d-98f7-51bf9bd1719c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/382791/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.17863.31118.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/643d3cbb48716a65fb2023b8/reports/22818a2b-e4be-4641-b237-a18360ef34b5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34
Result
Verdict:
UNKNOWN
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/c633196b-db60-49ca-8b9a-25022f006c87
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1215168
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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 modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 848098 Sample: Swift_35127__17.04.2023_Dt.exe Startdate: 17/04/2023 Architecture: WINDOWS Score: 100 49 Multi AV Scanner detection for domain / URL 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 8 other signatures 2->55 7 Wigwvr.exe 14 4 2->7         started        10 Swift_35127__17.04.2023_Dt.exe 16 7 2->10         started        14 Wigwvr.exe 3 2->14         started        process3 dnsIp4 57 Antivirus detection for dropped file 7->57 59 Multi AV Scanner detection for dropped file 7->59 61 Contains functionality to bypass UAC (CMSTPLUA) 7->61 67 5 other signatures 7->67 16 powershell.exe 7->16         started        18 Wigwvr.exe 7->18         started        47 85.31.45.42, 49689, 49700, 49701 CLOUDCOMPUTINGDE Germany 10->47 37 C:\Users\user\AppData\Roaming\...\Wigwvr.exe, PE32 10->37 dropped 39 C:\Users\user\...\Wigwvr.exe:Zone.Identifier, ASCII 10->39 dropped 41 C:\...\Swift_35127__17.04.2023_Dt.exe.log, ASCII 10->41 dropped 63 Encrypted powershell cmdline option found 10->63 65 Injects a PE file into a foreign processes 10->65 20 Swift_35127__17.04.2023_Dt.exe 3 14 10->20         started        23 powershell.exe 16 10->23         started        25 Swift_35127__17.04.2023_Dt.exe 10->25         started        27 powershell.exe 14->27         started        29 Wigwvr.exe 14->29         started        file5 signatures6 process7 dnsIp8 31 conhost.exe 16->31         started        43 45.88.66.122, 49698, 54321 LVLT-10753US Bulgaria 20->43 45 geoplugin.net 178.237.33.50, 49699, 80 ATOM86-ASATOM86NL Netherlands 20->45 33 conhost.exe 23->33         started        35 conhost.exe 27->35         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-04-17 09:50:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=viwkv7m2dvj56iiszeeb7nlinyccqo7a3ij5ss5m37emtlo7bq2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
10889504234fe600c781aefe6ba0918e2e1d98a777f6e4e03da6d006a06bffb0
RemcosRAT
2010a7e1a136a9881ba4db4beb99088ea77ea2997d36e6d1d16fc696b34fda8b
RemcosRAT
23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
RemcosRAT
38455251726a64db957d8e30e6c1dc1ca2b10c35691dadbcf3bf8172babe94e3
RemcosRAT
3d35655b8a265b213dba9d23a9542e024895cba4c18dbfb782cb844125c23654
RemcosRAT
b19c0bb20a5fe51658666464950c582cef626cdf1f50bf5c775109a0cf2267db
RemcosRAT
b84d775cf5de9234ec178e4a94c5c459f0c6e8ad3bffc977ba20b116b4d9d88e
RemcosRAT
c9ec59e23695adca831f06aca398c511cac81f2fd65c7353f14b4725791ab80a
RemcosRAT
cadf95355bd6ea18fdd3555ea3f85d102f40b3df0dc36b332f9ad8b505105f6e
RemcosRAT
f3e4dd541766cd7a3af91ef964b91ded632f13ebe69bd4fb5eadd563c0207059
RemcosRAT
+ 1'862 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:54321 persistence rat
Link:
https://tria.ge/reports/230417-prr9rafg8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
45.88.66.122:54321
Unpacked files
SH256 hash:
aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34
MD5 hash:
d472c151fc27c5832f21fbce88be6d54
SHA1 hash:
075d072187562c6465a45fb969ea2a92d7946449
Link:
https://www.unpac.me/results/cc7af981-0db6-424f-a5bf-e120014a490f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aa2caafd9a1d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34

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
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

File information

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

Malspam

RemcosRAT

Executable exe aa2caafd9a1d53df2112c9081fb5686e04283be0da13d94bacdfc8c9addf0c34

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/382791/

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