MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2
SHA3-384 hash: 5b6e18a25f1f457c58e57a2198059a92c7ca2338d35d42801369f89af75cfac9295801662b8ef54bb494624fe9238f6b
SHA1 hash: 657dde8c6b11a14aa398481768079f3286e37360
MD5 hash: 7a22c075e6bb86f3a537fd592925d0f8
humanhash: georgia-winner-lion-muppet
File name:91489557012035DraftBLFmKNNBRecd07Apr23CFM.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:689'152 bytes
First seen:2023-04-11 06:56:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 442d7ad4d476407400b17c9caa66accb (1 x RemcosRAT)
ssdeep 12288:KD+aLrg9LSA91a6XQYOg5f46XzsOpj2pMFr0sbOTWE:Ki08wU1a6Xv1B4oKMEW
Threatray 1'807 similar samples on MalwareBazaar
TLSH T131E4AF17A2F08833E12717388C569269983D7F112E247A496FD43F7C8B7D661B82729F
TrID 84.1% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
4.5% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.1% (.SCR) Windows screen saver (13097/50/3)
2.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.4% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 64d484a2a4a4a0cc (2 x Formbook, 2 x RecordBreaker, 1 x DBatLoader)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
251
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
alert.email(12).txt
Verdict:
Malicious activity
Analysis date:
2023-04-10 09:54:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/353404ad-4db6-4a0a-92d3-bcedf853ce86

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/381346/
Detection(s):
SecuriteInfo.com.Variant.Fragtor.253184.22745.26295.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
Enabling the 'hidden' option for recently created files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/77325/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
keylogger modiloader
Link:
https://www.filescan.io/uploads/643504bfc41e8bc6a3b0da3b/reports/d95c0395-a1c5-402a-a434-4e451558f90e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e56dd47e-5ff2-4323-acc0-897b1b1b4f5d
Result
Threat name:
DBatLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1211512
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates a thread in another existing process (thread injection)
Delayed program exit found
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 dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 844429 Sample: 91489557012035DraftBLFmKNNB... Startdate: 11/04/2023 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected DBatLoader 2->49 51 4 other signatures 2->51 6 91489557012035DraftBLFmKNNBRecd07Apr23CFM.exe 1 18 2->6         started        11 Xnuecpqr.exe 2->11         started        13 Xnuecpqr.exe 2->13         started        process3 dnsIp4 27 web.fe.1drv.com 6->27 29 onedrive.live.com 6->29 31 2 other IPs or domains 6->31 23 C:\Users\Public\Libraries\Xnuecpqr.exe, PE32 6->23 dropped 25 C:\Users\...\Xnuecpqr.exe:Zone.Identifier, ASCII 6->25 dropped 53 Writes to foreign memory regions 6->53 55 Allocates memory in foreign processes 6->55 57 Creates a thread in another existing process (thread injection) 6->57 15 iexpress.exe 3 15 6->15         started        59 Multi AV Scanner detection for dropped file 11->59 61 Machine Learning detection for dropped file 11->61 63 Injects a PE file into a foreign processes 11->63 19 colorcpl.exe 2 11->19         started        21 colorcpl.exe 13->21         started        file5 signatures6 process7 dnsIp8 33 20.251.10.189, 2349, 49700 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 15->33 35 geoplugin.net 178.237.33.50, 49701, 80 ATOM86-ASATOM86NL Netherlands 15->35 37 Contains functionality to bypass UAC (CMSTPLUA) 15->37 39 Contains functionality to steal Chrome passwords or cookies 15->39 41 Contains functionality to steal Firefox passwords or cookies 15->41 43 Delayed program exit found 15->43 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2/
Threat name:
Win32.Trojan.Fragtor
Create hunting rule
Status:
Malicious
First seen:
2023-04-07 10:29:03 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g5idy5sga4osezj3npt73ohmrwnlx7umx7fdszickxatdma7j7ja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0d7e2ea0f8269d0474c2d8de97da80b4c1333185f2ee6a602f4eff6e71759153
RemcosRAT
221784974f49f2b54c90c63ce6cf9550d94b15c3442c29c959300dbbf5b91f61
RemcosRAT
3fc5fe06474624df2032970d6c877080a12fdbd0b35f53622e11eb8788ed6c4a
RemcosRAT
6ff3c874127b92713c89a07825d7794a47cdff0fbaa8500685ff116bd09ffd09
RemcosRAT
71418a78c949e7f318a148ada4fd4a6701020a00707c426e3a2bf021966d03ce
RemcosRAT
96c3eda0f05d27702d5af7f5e0c626da24c93013804fd3ebc35241164eafdbdf
RemcosRAT
9846c8ffd0aec6ff3c8b8db350032e4d9586ac6aa22b06944672c837d3bbcf28
RemcosRAT
+ 1'797 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:razor persistence rat trojan
Link:
https://tria.ge/reports/230411-hqx1aaba58/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Adds Run key to start application
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
20.251.10.189:2349
Unpacked files
SH256 hash:
37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2
MD5 hash:
7a22c075e6bb86f3a537fd592925d0f8
SHA1 hash:
657dde8c6b11a14aa398481768079f3286e37360
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/41c50bf9-1f14-4e95-a919-6694a86f5d04/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37503c764607/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.26
Link:
https://yomi.yoroi.company/submissions/37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

RemcosRAT

Executable exe 37503c7646071d22653b6be7fdb8ec8d9abbfe8cbfca39650255c131b01f4fd2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/381346/

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