MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c6cf35735aff0eba459a6a1f4b65722ba08dfb0beed54b0df8e9be3ec3edba98. 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
| SHA256 hash: | c6cf35735aff0eba459a6a1f4b65722ba08dfb0beed54b0df8e9be3ec3edba98 |
|---|---|
| SHA3-384 hash: | 8ba525650e5cd0dcb6cafd8491684ab721262aee721cc06258b063e599f68dff3fbfcaac1131624b4748944534e07d85 |
| SHA1 hash: | 50337a4aa52b65cac5fd2745c3fe7d88d503d00f |
| MD5 hash: | ace3e9fc3a2277aa4e72881c9f204642 |
| humanhash: | hot-texas-nuts-nitrogen |
| File name: | CompanyLicense.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 98'304 bytes |
| First seen: | 2021-01-19 16:23:41 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | cdaaae34b462dd94bb47458bdb1adef4 (3 x RemcosRAT) |
| ssdeep | 768:8zNE6BYzwvWXallllllllllllllllllllllllllllllllllllllllllllllllllK:oE66zwuoPMvaB5DqinLdNW2XLnolNI8 |
| Threatray | 3'578 similar samples on MalwareBazaar |
| TLSH | 8EA3B133A244EBF9E2C7B0F64B2195A80054BCF04B65D507EDB83A192D727E7CD05A6E |
| Reporter |  abuse_ch |
| Tags: | exe nVpn RAT RemcosRAT |
abuse_ch
Malspam distributing RemcosRAT:HELO: mta0.comestaly.com
Sending IP: 165.227.105.235
From: Isabel Flores <sales@comestaly.com>
Subject: New RFQ TK011821 For TASK
Attachment: CompanyLicense.rar (contains "CompanyLicense.exe")
RemcosRAT C2:
northside.hopto.org:2048
Intelligence
File Origin
# of uploads :
1
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CompanyLicense.exe
Verdict:
No threats detected
Analysis date:
2021-01-19 15:59:20 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file in the %temp% subdirectories
DNS request
Sending a custom TCP request
Creating a file
Creating a file in the %AppData% subdirectories
Setting a single autorun event
Setting a global event handler for the keyboard
Connection attempt to an infection source
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 GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Contains functionality to hide a thread from the debugger
Creates autostart registry keys with suspicious values (likely registry only malware)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Hides threads from debuggers
Sigma detected: Remcos
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-01-19 16:24:05 UTC
AV detection:
10 of 28 (35.71%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
guloader
Similar samples:
+ 3'568 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Unpacked files
SH256 hash:
49b04162c412105ab0857de16713724cbf3234a0b6ba51f3a5286312633f20c3
MD5 hash:
1f1b425190b2fb0396ad2d538b1060ba
SHA1 hash:
413f98641d46fdcabfcaf64f29495667de6282ea
SH256 hash:
c6cf35735aff0eba459a6a1f4b65722ba08dfb0beed54b0df8e9be3ec3edba98
MD5 hash:
ace3e9fc3a2277aa4e72881c9f204642
SHA1 hash:
50337a4aa52b65cac5fd2745c3fe7d88d503d00f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | 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.
b1de92513b38931554d4195123ea234e
Dropped by
MD5 b1de92513b38931554d4195123ea234e
Delivery method
Distributed via e-mail attachment
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