MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000. 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 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000
SHA3-384 hash: aa880b76fab6bcc1603de719df073d61cbadc89f2f2a28755f044ad08b824487a466a9b05dc394985966e5907d32d7c3
SHA1 hash: 072befb3f68519ac71d4227554e0b4ae1782792f
MD5 hash: 034461a194d4f32d13b1d39e19411b83
humanhash: cup-rugby-double-may
File name:034461a194d4f32d13b1d39e19411b83
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'461'376 bytes
First seen:2022-11-08 07:45:16 UTC
Last seen:2022-11-08 10:46:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f1feeb9e7dee8c31856c4e424ba4c89b (3 x RedLineStealer, 2 x lgoogLoader, 1 x RemcosRAT)
ssdeep 49152:xkQyHLwhWhQ9HSdkTGgNLEtEDr0wvHIATzJQjNnj5sTavFEf:zwLwshQJdlNe5NjTmf
TLSH T1D7B5F12844203476FA3D8337FA378E32F437486C65D64616B8B141D51FAAFBFA9649C8
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 86a6a6aaaaaeaebe (3 x QuasarRAT, 2 x AgentTesla, 1 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT signed

Code Signing Certificate

Organisation:*.infinity.com
Issuer:Sectigo RSA Organization Validation Secure Server CA
Algorithm:sha256WithRSAEncryption
Valid from:2022-08-22T00:00:00Z
Valid to:2023-09-21T23:59:59Z
Serial number: 982bb3995415c1ce157998f0b036fccd
Intelligence: 7 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 190ba9c49c072ad81618e386caa5e477d4e00da3bfb7856b74e7a716fa753fa5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
F00015722EX.xls
Verdict:
Malicious activity
Analysis date:
2022-11-08 07:01:34 UTC
Tags:
macros trojan opendir exploit cve-2017-11882 loader rat remcos stealer keylogger
Link:
https://app.any.run/tasks/ad927bf1-9e57-48e7-92cd-42f78a65b30b

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/330405/
Detection(s):
SecuriteInfo.com.W32.PossibleThreat.6196.31760.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/49989/overview
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
EvasionGetTickCount
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed
Link:
https://www.filescan.io/uploads/636a093d38db7c2a0385e270/reports/231786c6-21ef-48e7-aa70-c009c51a4688/overview
Result
Verdict:
SUSPICIOUS
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/5102f10c-120b-4357-9e23-4f51a58ffc46
Result
Threat name:
Remcos, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1108033
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found stalling execution ending in API Sleep call
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Self deletion via cmd or bat file
Sigma detected: Remcos
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 740696 Sample: Bwnsiw31wN.exe Startdate: 08/11/2022 Architecture: WINDOWS Score: 100 62 fastdirections.com 2->62 82 Snort IDS alert for network traffic 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 Multi AV Scanner detection for submitted file 2->86 88 10 other signatures 2->88 11 Bwnsiw31wN.exe 4 2->11         started        15 tij ciwom.exe 2->15         started        signatures3 process4 file5 58 C:\Users\user\...\tij ciwom.exe, PE32 11->58 dropped 60 C:\Users\...\tij ciwom.exe:Zone.Identifier, ASCII 11->60 dropped 106 Found stalling execution ending in API Sleep call 11->106 108 Self deletion via cmd or bat file 11->108 110 Uses schtasks.exe or at.exe to add and modify task schedules 11->110 17 tij ciwom.exe 11->17         started        20 cmd.exe 1 11->20         started        22 schtasks.exe 1 11->22         started        112 Writes to foreign memory regions 15->112 114 Allocates memory in foreign processes 15->114 116 Injects a PE file into a foreign processes 15->116 signatures6 process7 signatures8 74 Writes to foreign memory regions 17->74 76 Allocates memory in foreign processes 17->76 78 Injects a PE file into a foreign processes 17->78 24 InstallUtil.exe 2 19 17->24         started        80 Uses ping.exe to check the status of other devices and networks 20->80 29 PING.EXE 1 20->29         started        31 conhost.exe 20->31         started        33 chcp.com 1 20->33         started        35 conhost.exe 22->35         started        process9 dnsIp10 68 maz.mastercoa.co 192.30.89.67, 3444, 49703, 49704 CLOUDSINGULARITYCA Canada 24->68 70 geoplugin.net 178.237.33.50, 49706, 80 ATOM86-ASATOM86NL Netherlands 24->70 54 C:\Users\user\AppData\Local\Temp\dwn.exe, PE32 24->54 dropped 56 C:\ProgramData\remcos\logs.dat, data 24->56 dropped 102 Maps a DLL or memory area into another process 24->102 104 Installs a global keyboard hook 24->104 37 dwn.exe 16 6 24->37         started        42 InstallUtil.exe 24->42         started        44 InstallUtil.exe 24->44         started        46 19 other processes 24->46 72 127.0.0.1 unknown unknown 29->72 file11 signatures12 process13 dnsIp14 64 fastdirections.com 192.185.163.193, 443, 49707, 49709 UNIFIEDLAYER-AS-1US United States 37->64 66 192.168.2.1 unknown unknown 37->66 52 C:\Users\user\AppData\...\Wcmknzabsjq.exe, PE32 37->52 dropped 90 Machine Learning detection for dropped file 37->90 92 Encrypted powershell cmdline option found 37->92 94 Injects a PE file into a foreign processes 37->94 48 powershell.exe 37->48         started        96 Tries to steal Instant Messenger accounts or passwords 42->96 98 Tries to steal Mail credentials (via file / registry access) 42->98 100 Tries to harvest and steal browser information (history, passwords, etc) 46->100 file15 signatures16 process17 process18 50 conhost.exe 48->50         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-11-08 04:17:53 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=peftxbjq5w5yjsr2s3bn5lldbh6qyexh6laiba74gy76oweniaaa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Link:
https://tria.ge/reports/221108-jly78agcgp/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Deletes itself
Loads dropped DLL
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
maz.mastercoa.co:3444
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8af85c93-1e5a-4ca7-9b67-fa7dd51f8bb9
Unpacked files
SH256 hash:
a70746c1b4df045348a32a5e57e01c9f0f5e86bcb8d5f1d94a2e99bb494eda06
MD5 hash:
c385afdd19d8c6884ebe451bffe44243
SHA1 hash:
ecc49aeab41712a98cae238f34ad9ce203ae59e0
Link:
https://www.unpac.me/results/e84e19d4-b33b-4160-afdf-c78921d4811e/
SH256 hash:
790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000
MD5 hash:
034461a194d4f32d13b1d39e19411b83
SHA1 hash:
072befb3f68519ac71d4227554e0b4ae1782792f
Link:
https://www.unpac.me/results/e84e19d4-b33b-4160-afdf-c78921d4811e/
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/790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000

File information

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

Web download

RemcosRAT

Executable exe 790b3b8530edbb84ca3a96c2dead6309fd0c12e7f2c08083fc363fe7588d4000

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2403997/
Cape
Cape
https://www.capesandbox.com/analysis/330405/

Comments


Avatar
zbet commented on 2022-11-08 07:45:23 UTC

url : hxxp://35.178.245.215/250/vbc.exe