MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7
SHA3-384 hash: 44c26bcc34e7f2da561fae74eaf9cafd9638d3a5860cb437e0150df320bc9a33c473c331e4d3d71f1edd901d7aa17d34
SHA1 hash: 261829332d458c8c7d4bd10962b1aee05a4c9f00
MD5 hash: 3976dc01e5488f308dd86bf764cb5424
humanhash: vermont-lake-saturn-july
File name:SecuriteInfo.com.Win32.PWSX-gen.4118.7374
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'178'112 bytes
First seen:2022-11-30 20:29:41 UTC
Last seen:2022-11-30 22:37:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:WXzTRjJQJ8pUHZ4TsfHERqZk+wwN55cOg:CvhJpyHZ0Khq1gA
Threatray 2'294 similar samples on MalwareBazaar
TLSH T14245CED613949DA3E9097EBF1E4C798E21AE19F3CFFE94C82D14B88515B56188E10FC2
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.PWSX-gen.4118.7374
Verdict:
Malicious activity
Analysis date:
2022-11-30 20:34:22 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/98c1dc29-77d7-40c0-84a0-40f81ba27c88

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/340757/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.4118.7374.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Creating a process from a recently created file
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6387bd4c5363773888663984/reports/42df832e-578b-4b8a-8dcf-8782945b5093/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9e092cf7-04f0-4c41-b00b-0ca9a3fd7389
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1124448
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 757176 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 30/11/2022 Architecture: WINDOWS Score: 100 86 Multi AV Scanner detection for domain / URL 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Antivirus detection for dropped file 2->90 92 11 other signatures 2->92 11 SecuriteInfo.com.Win32.PWSX-gen.4118.7374.exe 6 2->11         started        15 Cjwunq.exe 2 2->15         started        17 remcos.exe 2->17         started        19 2 other processes 2->19 process3 file4 74 C:\Users\user\AppData\Roaming\Cjwunq.exe, PE32 11->74 dropped 76 C:\Users\user\AppData\Local\...\tmpE84D.tmp, XML 11->76 dropped 78 SecuriteInfo.com.W...n.4118.7374.exe.log, ASCII 11->78 dropped 102 Uses schtasks.exe or at.exe to add and modify task schedules 11->102 104 Injects a PE file into a foreign processes 11->104 21 SecuriteInfo.com.Win32.PWSX-gen.4118.7374.exe 5 5 11->21         started        24 schtasks.exe 1 11->24         started        26 SecuriteInfo.com.Win32.PWSX-gen.4118.7374.exe 11->26         started        28 SecuriteInfo.com.Win32.PWSX-gen.4118.7374.exe 11->28         started        106 Multi AV Scanner detection for dropped file 15->106 108 Machine Learning detection for dropped file 15->108 30 schtasks.exe 17->30         started        36 2 other processes 17->36 32 schtasks.exe 19->32         started        34 schtasks.exe 19->34         started        38 2 other processes 19->38 signatures5 process6 file7 68 C:\ProgramData\Remcos\remcos.exe, PE32 21->68 dropped 70 C:\Users\user\AppData\Local\...\install.vbs, data 21->70 dropped 72 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 21->72 dropped 40 wscript.exe 1 21->40         started        43 conhost.exe 24->43         started        45 conhost.exe 30->45         started        47 conhost.exe 32->47         started        49 conhost.exe 34->49         started        process8 dnsIp9 80 192.168.2.1 unknown unknown 40->80 51 cmd.exe 1 40->51         started        process10 process11 53 remcos.exe 5 51->53         started        56 conhost.exe 51->56         started        signatures12 94 Multi AV Scanner detection for dropped file 53->94 96 Machine Learning detection for dropped file 53->96 98 Injects a PE file into a foreign processes 53->98 58 remcos.exe 53->58         started        62 schtasks.exe 53->62         started        64 remcos.exe 53->64         started        process13 dnsIp14 82 drremcoz1.ddns.net 185.246.220.39, 1307, 49720 LVLT-10753US Germany 58->82 84 geoplugin.net 178.237.33.50, 49721, 80 ATOM86-ASATOM86NL Netherlands 58->84 100 Installs a global keyboard hook 58->100 66 conhost.exe 62->66         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-11-30 19:44:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
18 of 41 (43.90%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ybeziona5ff4u44nqfhzmjxtay44s2twmsqz456d5l62cxo4n33q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3ab2ca682019279e28525a8ff1a72e08badba1c0f3012f926bad1528b2b0944a
RemcosRAT
47dabe278b8a171986b17e69ac9fac43657c11eb3c2c1523848074e0cfe6a57f
RemcosRAT
89adcb90dcc56d8e5b6cab4fce35a7ea8619ed9d47a5a947aaf4f34cb42c5021
RemcosRAT
8e7d1931cfe215a12acad3beb975cd78099a295a721069b35c05b469e2f703f9
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
a0a124777df35d015c84f61af9a8e4d0dba82120a30fa031b73b885a13d88214
RemcosRAT
b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265
RemcosRAT
fe800049d4ece336205fd83c50c747fc4f7f18e4cb2f2e80f37d0ec1700166d1
RemcosRAT
+ 2'284 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/221130-y961asfd5s/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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:
drremcoz1.ddns.net:1307
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6e05a864-fdd6-48c1-9ffc-328a0ffa8343
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/37b7fa2b-8dc2-4b26-aeeb-124fa552e89a/
SH256 hash:
34ac34a2794467ac152426dd1a77a4754cbdce104f86ce99ca2e7c79e0d43989
MD5 hash:
3172047bee26939da635d2206bf562ec
SHA1 hash:
2b87d442930b812be90e4d947e8db06ef57ec205
Link:
https://www.unpac.me/results/37b7fa2b-8dc2-4b26-aeeb-124fa552e89a/
SH256 hash:
01304c92721e17fea51265cdb72ac92ddfadd72cdf2a69b6316d2fcea6142472
MD5 hash:
c44e1e2ba57bba432e4699bd25bd6be9
SHA1 hash:
05e4522544434a9cd940ca389de70c231c9260ca
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/37b7fa2b-8dc2-4b26-aeeb-124fa552e89a/
Parent samples :
8d86066da3f1e2e29a47ae45d3e1cb0d70af8cf3f0255d3ab0b776464a0617c2
a0a124777df35d015c84f61af9a8e4d0dba82120a30fa031b73b885a13d88214
c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7
36a2cbe976c9c3fb77f83c521dc34752c4996f45d65c77372949fc62eb21f838
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
01304c92721e17fea51265cdb72ac92ddfadd72cdf2a69b6316d2fcea6142472
519cdc27424d8eb3cac48f7e148ce68123980a03a8692c1139f229fec66a5615
SH256 hash:
c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7
MD5 hash:
3976dc01e5488f308dd86bf764cb5424
SHA1 hash:
261829332d458c8c7d4bd10962b1aee05a4c9f00
Link:
https://www.unpac.me/results/37b7fa2b-8dc2-4b26-aeeb-124fa552e89a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c0499439a0e9/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/c0499439a0e94bca738d814f9626f30639c96a7664a19e77c3eafda15ddc6ef7

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
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/340757/

Comments