MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b8059fc344b91a7b02e6a15a94551fcb3450f1109ad59bd6f3a22e0342ad9ff5. 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
| SHA256 hash: | b8059fc344b91a7b02e6a15a94551fcb3450f1109ad59bd6f3a22e0342ad9ff5 |
|---|---|
| SHA3-384 hash: | 25fdeb8ede7106e98b0e61f6ccb9e74b5d718512955363b08048a04d64f4dff8871b89a3ceb56e2047d1f80731787c50 |
| SHA1 hash: | 9172e31e826c48aa651438ece39f17ff3e85cac4 |
| MD5 hash: | e818058977819a85c6f6c2b6c343999f |
| humanhash: | louisiana-artist-may-wolfram |
| File name: | URT560045B754.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 120'490 bytes |
| First seen: | 2021-03-09 08:28:34 UTC |
| Last seen: | 2021-03-10 05:38:33 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger) |
| ssdeep | 3072:KBynOpL12riocZbTIQxMCaJW+0DTYBgH+Yij6CKbIxW3Wo:KBlL/xKfJ03YBgdijBKeWmo |
| Threatray | 1'760 similar samples on MalwareBazaar |
| TLSH | F1C3DF92F2C2C467F8570BB0253A8F84D76AFE553092659B37AC7F2709B71C2A94710B |
| Reporter |  GovCERT_CH |
| Tags: | RemcosRAT |
Intelligence
File Origin
# of uploads :
5
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
URT560045B754.exe
Verdict:
Malicious activity
Analysis date:
2021-03-09 08:30:42 UTC
Tags:
trojan 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 file in the %temp% subdirectories
Unauthorized injection to a recently created process
Setting a keyboard event handler
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Sending a UDP request
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
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Installs a global keyboard hook
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Gathering data
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2021-03-09 08:29:08 UTC
AV detection:
17 of 47 (36.17%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'750 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Remcos
Unpacked files
SH256 hash:
86c00936a983055fb793d357c24288547cd3a49b1cf33f0be039f2b2920ec977
MD5 hash:
2bfbf2ffe9d52c0e7d262d587cfc27f1
SHA1 hash:
0284a51adbedf266b41d650ab2cf4aa88c83221a
SH256 hash:
b8059fc344b91a7b02e6a15a94551fcb3450f1109ad59bd6f3a22e0342ad9ff5
MD5 hash:
e818058977819a85c6f6c2b6c343999f
SHA1 hash:
9172e31e826c48aa651438ece39f17ff3e85cac4
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: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | INDICATOR_EXE_Packed_MPress |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables built or packed with MPress PE compressor |
| 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: | 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: | suspicious_packer_section |
|---|---|
| Author: | @j0sm1 |
| Description: | The packer/protector section names/keywords |
| Reference: | http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/ |
| 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
Dropped by
RemcosRAT
Delivery method
Distributed via e-mail attachment
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