MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf. 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


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf
SHA3-384 hash: 7820c8faa50608fb5ba6301d81864d0b9579f881df1d74376da50f30972cf4dfa0640c91e081079801d85f99a717f965
SHA1 hash: 4f45442edf772a5920d642039823182166ce8eb6
MD5 hash: ce4052db6e9670cccedb04244232db54
humanhash: missouri-mars-venus-cardinal
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'241'600 bytes
First seen:2023-05-19 19:16:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:QANhdWjv6VoRAux123MBAKx9nf4L7XFz3Tu9o:FNMeov123M6KDnfirFDTu9o
Threatray 1'925 similar samples on MalwareBazaar
TLSH T19345D1F7286B2978DE993CB0D4C939A215F005170948F62EF7611AEEE097EB5F2041B7
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 d080c0d230946971 (1 x RemcosRAT)
Reporter jstrosch
Tags:.NET exe MSIL RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-05-19 19:19:16 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/9806894e-37a8-44a7-b2d5-850a7cf2c3b6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Variant.Lazy.331716.13958.19951.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed remcos
Link:
https://www.filescan.io/uploads/6467cb345774ee2d6205dec9/reports/06be622e-8607-478d-a2fc-206dae46d810/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf
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:
OutSteel
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1f2b7a28-df43-4310-af95-d0e214401d72
Result
Threat name:
Remcos, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1237654
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
Creates an undocumented autostart registry key
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 870651 Sample: file.exe Startdate: 19/05/2023 Architecture: WINDOWS Score: 100 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 9 other signatures 2->61 8 file.exe 4 2->8         started        process3 file4 41 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->41 dropped 75 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->75 12 cmd.exe 3 8->12         started        16 cmd.exe 1 8->16         started        signatures5 process6 file7 43 C:\Users\user\AppData\Local\...\dghfdgh.exe, PE32 12->43 dropped 45 C:\Users\user\...\dghfdgh.exe:Zone.Identifier, ASCII 12->45 dropped 77 Uses ping.exe to sleep 12->77 18 dghfdgh.exe 3 12->18         started        21 conhost.exe 12->21         started        23 PING.EXE 1 12->23         started        25 PING.EXE 1 12->25         started        79 Uses ping.exe to check the status of other devices and networks 16->79 27 reg.exe 1 1 16->27         started        29 PING.EXE 1 16->29         started        32 conhost.exe 16->32         started        signatures8 process9 dnsIp10 63 Antivirus detection for dropped file 18->63 65 Multi AV Scanner detection for dropped file 18->65 67 Machine Learning detection for dropped file 18->67 71 3 other signatures 18->71 34 AddInProcess32.exe 3 15 18->34         started        69 Creates an undocumented autostart registry key 27->69 51 127.0.0.1 unknown unknown 29->51 53 192.168.2.1 unknown unknown 29->53 signatures11 process12 dnsIp13 47 pops.mastercoa.co 184.75.223.195, 39477, 49695 AMANAHA-NEWCA Canada 34->47 49 geoplugin.net 178.237.33.50, 49696, 80 ATOM86-ASATOM86NL Netherlands 34->49 39 C:\ProgramData\remcos\logs.dat, data 34->39 dropped 73 Installs a global keyboard hook 34->73 file14 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf/
Threat name:
ByteCode-MSIL.Trojan.Lazy
Create hunting rule
Status:
Malicious
First seen:
2023-05-19 17:35:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=scrtpkytipm2qcu5lpexyacpwixkjkpvml6szdxwlt2cg44cmphq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3a573796b5e6f1cc3a92eef7e268fa4e74aeddf34f5dd62f7b02109fe560ecd2
RemcosRAT
3d4ffcd1cd594f452ad1c374933eea8dd36d21a6d01372cc7f1afc636d26fa72
RemcosRAT
538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc
RemcosRAT
76005c1982c2d4df1995d8ba0e2163ac84b5009823466b9e043a5a017e15c9cd
RemcosRAT
797c253df096431e69f1aa84f0010f248384fe437cda4bf8df916c48fbb7984f
RemcosRAT
818bd67db5fe30f5cfdab861f996f30fa20427e3e1aa65ffe6d98f6c7af7558d
RemcosRAT
90920ec16dc530c71905b20801f4d443ddcadbcb1d2a5d0a957fc837169fa4b2
RemcosRAT
a4da37e92ca54c8851ad144fba875b61e2018f69bbe43b11926d8f8d831b56f0
RemcosRAT
ba484a35c10e0de7b344da174c26560e29bd3fe895216f9d03c0ce1cfc3de706
RemcosRAT
+ 1'915 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/230519-xzcg9sac7t/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
pops.mastercoa.co:39477
Unpacked files
SH256 hash:
78df8242f1ca4bdc47a69c9ef128f8ff1a54b5fbe65f91d1fd4a5667ec7aa4bb
MD5 hash:
6fe068c9c0e8991222d166aa2b1a790d
SHA1 hash:
b46b92ba5eb4ef18a2c95b543f8f95fc436620d9
Link:
https://www.unpac.me/results/2cd5b707-3e12-4acb-8280-5450bf8add19/
SH256 hash:
e4df412aae2d2ddc35618b80123f17425d8cbeff16d0665ecd6e5296e9ca939b
MD5 hash:
1283dad473d6ec8171c2020e1656da8a
SHA1 hash:
4123064d33aff232ca9db5d50ea3456aec70c628
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2cd5b707-3e12-4acb-8280-5450bf8add19/
Parent samples :
90920ec16dc530c71905b20801f4d443ddcadbcb1d2a5d0a957fc837169fa4b2
90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf
c80849b89470656a8f81e539e38a7246e032d943639e3a161612a6daabb77282
SH256 hash:
90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf
MD5 hash:
ce4052db6e9670cccedb04244232db54
SHA1 hash:
4f45442edf772a5920d642039823182166ce8eb6
Link:
https://www.unpac.me/results/2cd5b707-3e12-4acb-8280-5450bf8add19/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/90a337ab1343/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
Link:
https://yomi.yoroi.company/submissions/90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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.

Web download

RemcosRAT

Executable exe 90a337ab1343d9a80a9d5bc97c004fb22ea4a9f562fd2c8ef65cf423738263cf

(this sample)

  
Delivery method
Distributed via web download

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