MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1
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SHA256 hash: bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6
SHA3-384 hash: ef70556b50bf1d67cee154a3dee66b6b96bb0cdd9613be7859c88be81632b06edca0d371d82d84660bd09ac9df3f5fac
SHA1 hash: 192fb971eb8d039874a223a65745db1bf004d559
MD5 hash: d5e1d20e4bf7684c86b8f1f0ef679949
humanhash: tennis-solar-angel-solar
File name:d5e1d20e4bf7684c86b8f1f0ef679949
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'204'224 bytes
First seen:2022-04-27 10:24:54 UTC
Last seen:2022-04-27 10:54:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:RaeFlJi64J6+Yoc8dAy3PHrRtoC50GWAz8ULbWtoOH2U0So:JU/J6+Yodayf/l50GWq8ULbWoOHb
Threatray 2'151 similar samples on MalwareBazaar
TLSH T1FE459E983650B19FC867CE72CDA81D60EA70B867971BD307A45312AD9D0E69BCF106F3
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267207/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.13710.24932.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62691a082b32b1c37c6512c3/reports/a0485c79-ff05-461a-aa9c-0605b0943e66/overview
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:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/44d1075d-ab9e-4010-b06f-8349153bc736
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/983996
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Found malware configuration
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
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 616492 Sample: gRcgwt6WRu Startdate: 27/04/2022 Architecture: WINDOWS Score: 100 40 gdyhjjdhbvxgsfe.gotdns.ch 2->40 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 10 other signatures 2->48 10 gRcgwt6WRu.exe 4 2->10         started        14 doc.exe 3 2->14         started        16 doc.exe 2->16         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\gRcgwt6WRu.exe.log, ASCII 10->38 dropped 50 Contains functionalty to change the wallpaper 10->50 52 Contains functionality to steal Chrome passwords or cookies 10->52 54 Contains functionality to inject code into remote processes 10->54 56 2 other signatures 10->56 18 gRcgwt6WRu.exe 4 4 10->18         started        21 doc.exe 14->21         started        signatures6 process7 file8 32 C:\Users\user\AppData\Roaming\doc.exe, PE32 18->32 dropped 34 C:\Users\user\...\doc.exe:Zone.Identifier, ASCII 18->34 dropped 36 C:\Users\user\AppData\Local\...\install.vbs, data 18->36 dropped 23 wscript.exe 1 18->23         started        process9 process10 25 cmd.exe 1 23->25         started        process11 27 doc.exe 3 25->27         started        30 conhost.exe 25->30         started        signatures12 58 Multi AV Scanner detection for dropped file 27->58 60 Machine Learning detection for dropped file 27->60 62 Tries to delay execution (extensive OutputDebugStringW loop) 27->62
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-27 05:51:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2d6b7a5513ed0cb451701bb494fb87382061195c115ede553f062b4fc0fd4f97
RemcosRAT
4ce893ef0bd7abeb769c3c3e57863700f41882befbee770733f0da86e015e7cb
RemcosRAT
724b6b5e627086ff22b9f2d2c045faa880dea62f513a694058b452aa1b6cad6f
RemcosRAT
8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30
RemcosRAT
a4b821d0cadc92c344c8b60f5290a5e5520fd1fb3813b88c529c48d285b72c63
RemcosRAT
d98541f0e7659a620cfd349405facb991e7e7973e90f7bef7f7882315023e96f
RemcosRAT
e12fdcfde01952915157328b7afec8830f172814db0ce8d8658d427088b728d0
RemcosRAT
+ 2'141 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:awele persistence rat
Link:
https://tria.ge/reports/220427-mfylaabdc9/
Behaviour
Modifies registry class
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
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
gdyhjjdhbvxgsfe.gotdns.ch:2718
Unpacked files
SH256 hash:
bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6
MD5 hash:
d5e1d20e4bf7684c86b8f1f0ef679949
SHA1 hash:
192fb971eb8d039874a223a65745db1bf004d559
Link:
https://www.unpac.me/results/6c7207ad-1429-4854-9427-a3ce95b1c9bc/
Malware family:
Remcos
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bc4cee107dc8/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/bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe bc4cee107dc86c0b272beea0bf170d2908082689bad99e57e695c9cea006dac6

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/267207/
  
URLhaus
https://urlhaus.abuse.ch/url/2167083/

Comments


Avatar
zbet commented on 2022-04-27 10:24:57 UTC

url : hxxp://2.58.149.219/CBZ.exe