MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f83b661368315980cb1f5100f5bd829c48e9099ba5c0f1e6a7189a022cb7ea08. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f83b661368315980cb1f5100f5bd829c48e9099ba5c0f1e6a7189a022cb7ea08
SHA3-384 hash: 05dcbea47abeb2234d713103d2f985ec5f90d7d8643fa2a88f4656145e456d0c3511062975d2d1575a43a7c6df8d50cb
SHA1 hash: 97e5e0a4f9f30daab12552e9c662808b1c5ed9eb
MD5 hash: c1646bb415ffd68c049e02bd1139bc53
humanhash: early-stairway-failed-hot
File name:SecuriteInfo.com.Other.Malware-gen.13560.2061
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:12'288 bytes
First seen:2022-10-13 08:37:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 96:S8j5SfMuh/QibhZaOram82+gzA6DvA+dYoFc2RcRe2q5EwExou1YdaKNc6Nyzvji:SPfBQiLram827A6swYom0crz10uO
Threatray 2'305 similar samples on MalwareBazaar
TLSH T12942C58FD3985972D83A4A3AA49282F206657742ECFD4E2F5434B517B8733C24690E6F
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 9b1979616969612b (42 x RemcosRAT, 6 x AgentTesla, 5 x Formbook)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/319789/
Detection(s):
SecuriteInfo.com.Other.Malware-gen.13560.2061.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6347ce6c67135c9da246be3f/reports/23c84914-a100-4e9e-b88a-aa9479e82486/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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/aaf4a62a-0125-4e68-8f1b-4afc493c675f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1089656
Signature
.NET source code contains potential unpacker
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
Encrypted powershell cmdline option found
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 domain / URL
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 722267 Sample: SecuriteInfo.com.Other.Malw... Startdate: 13/10/2022 Architecture: WINDOWS Score: 100 56 transfer.sh 2->56 64 Snort IDS alert for network traffic 2->64 66 Multi AV Scanner detection for domain / URL 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 9 other signatures 2->70 8 SecuriteInfo.com.Other.Malware-gen.13560.2061.exe 16 7 2->8         started        13 Anscrdlp.exe 2->13         started        15 Anscrdlp.exe 2->15         started        signatures3 process4 dnsIp5 62 transfer.sh 144.76.136.153, 443, 49702, 49707 HETZNER-ASDE Germany 8->62 44 C:\Users\user\AppData\...\Anscrdlp.exe, PE32 8->44 dropped 46 C:\Users\...\Anscrdlp.exe:Zone.Identifier, ASCII 8->46 dropped 48 SecuriteInfo.com.O....13560.2061.exe.log, ASCII 8->48 dropped 84 Encrypted powershell cmdline option found 8->84 17 aspnet_compiler.exe 2 18 8->17         started        22 aspnet_compiler.exe 8->22         started        24 powershell.exe 13 8->24         started        26 aspnet_compiler.exe 8->26         started        86 Machine Learning detection for dropped file 13->86 file6 signatures7 process8 dnsIp9 50 obologs.work.gd 194.5.98.244, 4044, 49703, 49705 DANILENKODE Netherlands 17->50 52 geoplugin.net 178.237.33.50, 49704, 80 ATOM86-ASATOM86NL Netherlands 17->52 54 transfer.sh 17->54 40 C:\Users\user\AppData\Local\Temp\dwn.exe, PE32 17->40 dropped 42 C:\Users\user\AppData\...\Ojmhrkn[1].exe, PE32 17->42 dropped 72 Maps a DLL or memory area into another process 17->72 74 Sample uses process hollowing technique 17->74 28 aspnet_compiler.exe 1 17->28         started        31 aspnet_compiler.exe 17->31         started        33 aspnet_compiler.exe 17->33         started        37 21 other processes 17->37 76 Contains functionality to steal Chrome passwords or cookies 22->76 78 Contains functionality to inject code into remote processes 22->78 80 Contains functionality to steal Firefox passwords or cookies 22->80 82 Delayed program exit found 22->82 35 conhost.exe 24->35         started        file10 signatures11 process12 dnsIp13 88 Tries to steal Instant Messenger accounts or passwords 28->88 90 Tries to steal Mail credentials (via file / registry access) 28->90 58 192.168.2.1 unknown unknown 37->58 60 transfer.sh 37->60 92 Machine Learning detection for dropped file 37->92 94 Tries to harvest and steal browser information (history, passwords, etc) 37->94 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f83b661368315980cb1f5100f5bd829c48e9099ba5c0f1e6a7189a022cb7ea08/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-13 08:38:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7a5wme3igfmybsy7keaplpmctreoscm3uxapdzvhdcnaelfx5iea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4bd1f385e71c2b0c8bb27ce271cfd26c696e3049e3e92cd150ba62666bc6221f
RemcosRAT
592f15fec50eda79baadcb6bc5c4cb79de60e5bb285f20fb8e8927477495f065
RemcosRAT
7f89f38c1c2a3e42e7fe2d1c286816361fe77aa49d1d474de200df6eb2dbda81
RemcosRAT
8e7d1931cfe215a12acad3beb975cd78099a295a721069b35c05b469e2f703f9
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
e1eb708f47303b831f6eb0ddc846e21782e8f727dcb0088fcb997c3bf0d4dbd3
RemcosRAT
e76cebc404b8a79e2ab806a3e501b9d2f7260ea1d12f804320c1130be205dff6
RemcosRAT
+ 2'295 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/221013-kjqczabddm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
obologs.work.gd:4044
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4403c70d-8294-4ce0-9cea-a266ffee663b
Unpacked files
SH256 hash:
f83b661368315980cb1f5100f5bd829c48e9099ba5c0f1e6a7189a022cb7ea08
MD5 hash:
c1646bb415ffd68c049e02bd1139bc53
SHA1 hash:
97e5e0a4f9f30daab12552e9c662808b1c5ed9eb
Link:
https://www.unpac.me/results/613d2b57-9049-431c-ae40-adf09859ee28/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f83b66136831/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f83b661368315980cb1f5100f5bd829c48e9099ba5c0f1e6a7189a022cb7ea08

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
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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.

Cape
Cape
https://www.capesandbox.com/analysis/319789/

Comments