MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029
SHA3-384 hash: b429ed53bf4bdb02549607ee78fb62acf513cc0c7c34e79e3bb5dcb08e781f2aa36f98606aaaf7d48306ce5c9a8119e0
SHA1 hash: 0b6214ca217f05082de7c059489e1885e9a9830a
MD5 hash: 39405bf5cd157858f25ccb94cfe2dcbd
humanhash: asparagus-crazy-massachusetts-friend
File name:6901324.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:783'485 bytes
First seen:2022-05-16 00:17:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:OOjOvadI5Ke8YvX6PJ+MbQuD+J1mWkoM0geV25SW5viIN1xO0dzJU2jBygE2nq+:OOSi1+PKG0WkoMCVI7viSlJfFs2nq+
Threatray 1'222 similar samples on MalwareBazaar
TLSH T1C9F412907E54E80BE761093689D2FE298BF8BAD519F24747BF28555E3D387C88E0E704
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f4ecded2a2c2e0b4 (1 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/270860/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/17888/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6281983bcc43366302cc7325/reports/b4921025-57e6-482a-b29a-9b2c8171d7ca/overview
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4598ee3d-6cc5-4f4f-abad-9fb2c1a4afe6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994497
Signature
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
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 626993 Sample: 6901324.exe Startdate: 16/05/2022 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 3 other signatures 2->40 7 6901324.exe 19 2->7         started        10 rhecdbqpbww.exe 2->10         started        12 rhecdbqpbww.exe 2->12         started        process3 file4 26 C:\Users\user\AppData\Local\...\uzynnmxbo.exe, PE32 7->26 dropped 14 uzynnmxbo.exe 1 2 7->14         started        18 WerFault.exe 10 10->18         started        21 WerFault.exe 3 10 12->21         started        process5 dnsIp6 28 C:\Users\user\AppData\...\rhecdbqpbww.exe, PE32 14->28 dropped 42 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->42 44 Contains functionality to steal Chrome passwords or cookies 14->44 46 Contains functionality to inject code into remote processes 14->46 48 3 other signatures 14->48 23 uzynnmxbo.exe 2 14->23         started        30 192.168.2.1 unknown unknown 18->30 file7 signatures8 process9 dnsIp10 32 172.111.234.100, 5888 SOFTLAYERUS United States 23->32
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-05-15 23:21:32 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fcfr5kzqeycq5ylyeenm4w7s5dfntwcxop74avusttl3n7j32auq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
576183a33f5247a852bc65a4dc4cbca5762bfbad1291a82572681f7075dc6123
RemcosRAT
6debeb4cbf5037ee3b4d23e3a005dc58ebb0f26ac5f5266e910187a66760a4a0
RemcosRAT
ba8d32d0c7844fdd2e5c4311fc6dc7a400d7c1ff97bebd9760d62308c669fb8f
RemcosRAT
d4729baa39aa4e1052e0999c90450a4cdcd4c4e3831c9a791fb99b94036103b4
RemcosRAT
f75fd5ce522743fe012bdf743efc66e481d72d92b6eb0465621a77a4600ff6b5
RemcosRAT
+ 1'212 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/220516-allsfsbchq/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
172.111.234.100:5888
Unpacked files
SH256 hash:
288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029
MD5 hash:
39405bf5cd157858f25ccb94cfe2dcbd
SHA1 hash:
0b6214ca217f05082de7c059489e1885e9a9830a
Link:
https://www.unpac.me/results/31a3302e-1a7b-4e5e-81a7-359d093a218a/
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/288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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 288b1eab3026050ee178211ace5bf2e8cad9d85773ffc056929cd7b6fd3bd029

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/270860/

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