MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4b8335250b1cfcb5fac9790261dd43f5efcbc187c68961ee5afd34662d0599ed. 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
| SHA256 hash: | 4b8335250b1cfcb5fac9790261dd43f5efcbc187c68961ee5afd34662d0599ed |
|---|---|
| SHA3-384 hash: | 1d44c22ca8de6a5e42fa6c6f902e874e377f06a038413ab5fffbd78494ee54460724926443c0e89e5ea38c11cd9e69f8 |
| SHA1 hash: | 2b671558ca3265098f7bdbbf0bca4086c6d833ce |
| MD5 hash: | cd9225f8c0ad4a2f654ac5bd4f60300a |
| humanhash: | massachusetts-fanta-ohio-oven |
| File name: | Purchase Order PC-20210100201.pdf.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'004'544 bytes |
| First seen: | 2021-02-01 08:02:44 UTC |
| Last seen: | 2021-02-01 09:45:18 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'238 x SnakeKeylogger) |
| ssdeep | 12288:FWqB993FlFPEph9TO96+MJFpMxAGhfIq8ixSl4bAhvc/GvGTHt8j+CwGXW:Fp9DlFuOKzpMxAcfKixImmp |
| Threatray | 1'489 similar samples on MalwareBazaar |
| TLSH | 0825CFC1D2483DF5F81917B20D36AD252257BD6DA9B0D52E685EB06A5AF338330F2C1B |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
abuse_ch
Malspam distributing RemcosRAT:HELO: ip130.ip-94-23-91.eu
Sending IP: 94.23.91.130
From: Julie Shah <julie@ampco.com.sa>
Subject: Re: Order PC-20210100201
Attachment: Purchase Order PC-20210100201.pdf.iso (contains "Purchase Order PC-20210100201.pdf.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order PC-20210100201.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-02-01 08:06:55 UTC
Tags:
rat remcos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
DNS request
Forced shutdown of a system process
Connection attempt to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Binary contains a suspicious time stamp
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
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 domain / URL
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-02-01 08:03:08 UTC
AV detection:
17 of 46 (36.96%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'479 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos ransomware rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
insidelife1.ddns.net:2021
Unpacked files
SH256 hash:
9b7bbd9789f7095f9e5066958f6128571ad1d7603a3888f2ec1842ea533684e9
MD5 hash:
77a00093417fdfc78f6503a3f328db92
SHA1 hash:
bd4664cf38d7ab7a34f9bcf4c5c5f1c94c5146d3
Detections:
win_remcos_g0
win_remcos_auto
SH256 hash:
8b2f5afa1a090632128e196710727d3fb84321b0b9081af85fa4f8f828545cf2
MD5 hash:
819a7fb572bd303d5e65255f2404e803
SHA1 hash:
f9940b05a359575af78270b62b96e6f9f39dea43
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
SH256 hash:
4b8335250b1cfcb5fac9790261dd43f5efcbc187c68961ee5afd34662d0599ed
MD5 hash:
cd9225f8c0ad4a2f654ac5bd4f60300a
SHA1 hash:
2b671558ca3265098f7bdbbf0bca4086c6d833ce
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | ach_RemcosRAT |
|---|---|
| Author: | abuse.ch |
| Rule name: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Parallax |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Parallax RAT. |
| Rule name: | Remcos |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Remcos in memory |
| Rule name: | remcos_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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