MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7e6a1eccebd20cd5940fb92b1a3d8227270c180d9ab60635f0f6aa91c9bbddc. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7e6a1eccebd20cd5940fb92b1a3d8227270c180d9ab60635f0f6aa91c9bbddc
SHA3-384 hash: 46855bafd2db0cf8375c99c3efa74c4c5d5d8d227b49b6d2f6161663da613510d07d86f199e4e73ec1e12708b32afd7e
SHA1 hash: e7e9e7de73fb99dacfcca05a49785fc1885b8a86
MD5 hash: b81870c1e28fd031e7487a8093a532d8
humanhash: montana-neptune-delta-lake
File name:b81870c1e28fd031e7487a8093a532d8
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'105'920 bytes
First seen:2022-11-17 15:04:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:CNdmrAIpX5ndEHsOzj4j85M1hUQDAxzJX4vOk:Cq5YsOzj4jGM1aK4FX
TLSH T1D635D03759CB6696C8987BFCA26905B853F38E1B5010F6A22CF431E4D6B4647FE110AF
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 0e0fcdcd8dcd4f0e (13 x Loki, 5 x RedLineStealer, 3 x Formbook)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b81870c1e28fd031e7487a8093a532d8
Verdict:
Malicious activity
Analysis date:
2022-11-17 15:06:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/648792a8-51e2-401c-b38d-ccd2f0412b4e

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/335384/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.4425.27080.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63764da06fda73cab64e3872/reports/9adaac92-3b41-41ea-b019-1b465d4d2cb2/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:
OutSteel
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0414705b-7087-4178-8ecd-470d0951ecce
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1116096
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 748804 Sample: BuKhcpEcvY.exe Startdate: 17/11/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for dropped file 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 6 other signatures 2->48 7 BuKhcpEcvY.exe 15 4 2->7         started        process3 dnsIp4 40 www.google.com 142.250.184.228, 443, 49698 GOOGLEUS United States 7->40 32 C:\Users\user\AppData\...\BuKhcpEcvY.exe.log, ASCII 7->32 dropped 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->52 12 cmd.exe 1 7->12         started        15 cmd.exe 3 7->15         started        file5 signatures6 process7 file8 54 Uses ping.exe to sleep 12->54 56 Uses ping.exe to check the status of other devices and networks 12->56 18 reg.exe 1 1 12->18         started        21 PING.EXE 1 12->21         started        24 conhost.exe 12->24         started        34 C:\Users\user\AppData\Roaming\...\Rmcra.exe, PE32 15->34 dropped 36 C:\Users\user\...\Rmcra.exe:Zone.Identifier, ASCII 15->36 dropped 26 conhost.exe 15->26         started        28 PING.EXE 1 15->28         started        30 PING.EXE 1 15->30         started        signatures9 process10 dnsIp11 50 Creates an undocumented autostart registry key 18->50 38 127.0.0.1 unknown unknown 21->38 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7e6a1eccebd20cd5940fb92b1a3d8227270c180d9ab60635f0f6aa91c9bbddc/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-17 05:29:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u7tkd3goxuqm2wka7ojldi6yejzhbqma3gvway27b5vkshe3xxoa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/221117-sf6vjsef97/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes dropped EXE
Modifies WinLogon for persistence
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6e4fdd40-675b-4d63-8044-30c164fa6c24
Unpacked files
SH256 hash:
a7e6a1eccebd20cd5940fb92b1a3d8227270c180d9ab60635f0f6aa91c9bbddc
MD5 hash:
b81870c1e28fd031e7487a8093a532d8
SHA1 hash:
e7e9e7de73fb99dacfcca05a49785fc1885b8a86
Link:
https://www.unpac.me/results/3be87809-5f9f-4203-a80d-d76c799df98e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7e6a1eccebd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

RemcosRAT

Executable exe a7e6a1eccebd20cd5940fb92b1a3d8227270c180d9ab60635f0f6aa91c9bbddc

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2422672/
Cape
Cape
https://www.capesandbox.com/analysis/335384/

Comments


Avatar
zbet commented on 2022-11-17 15:04:29 UTC

url : hxxp://52.29.58.98/uploads/Mail_3.0.8.1.exe