MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674. 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: 9


Intelligence 9 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674
SHA3-384 hash: a1247e047d707238c36f9b0a49497245245f186746b0274a782d4eea4ecb84bf1a9e5e186380846bd08c37941ada91a2
SHA1 hash: dc5a8f7a13f1a3d4ac04138510303511f5d54d6b
MD5 hash: 24ceec2e9d034a5d4f89df6557ee8ecf
humanhash: pizza-princess-purple-steak
File name:884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'179'168 bytes
First seen:2020-11-14 17:57:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:KD6qkrNEWsNfZc719B6KR6kmHaLIahgxY3b5k7:TrNUmd6KRtYaLDNc
TLSH 2A45BF0273E6C0B2FE9BA2739B19B242977869350173841F23A82DB8BD715B1477D763
Reporter seifreed
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Malware.Autoit-6985962-0
Create hunting rule

Win.Trojan.Autoit-9790147-0
Create hunting rule

Win.Trojan.Autoit-9790152-0
Create hunting rule

Win.Trojan.Autoit-9790155-0
Create hunting rule

Win.Trojan.Autoit-9790166-0
Create hunting rule

Win.Trojan.Autoit-9790168-0
Create hunting rule

Win.Trojan.Autoit-9790176-0
Create hunting rule

Win.Trojan.Autoit-9790232-0
Create hunting rule

Win.Trojan.Autoit-9790239-0
Create hunting rule

Win.Trojan.Autoit-9790240-0
Create hunting rule

Win.Trojan.Autoit-9790242-0
Create hunting rule

Win.Trojan.Autoit-9790245-0
Create hunting rule

Win.Trojan.Autoit-9790251-0
Create hunting rule

Win.Trojan.Autoit-9790262-0
Create hunting rule

Win.Trojan.Autoit-9790267-0
Create hunting rule

Win.Trojan.Autoit-9790695-0
Create hunting rule

Win.Trojan.Nanocore-9789919-1
Create hunting rule

Win.Trojan.Autoit-9791035-0
Create hunting rule

Win.Trojan.Autoit-9791037-0
Create hunting rule

Win.Trojan.Autoit-9792204-0
Create hunting rule

Win.Trojan.Autoit-9792227-0
Create hunting rule

Win.Trojan.Autoit-9792274-0
Create hunting rule

Win.Trojan.Autoit-9792870-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Deleting a recently created file
Running batch commands
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Enabling autorun by creating a file
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/536192
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 317195 Sample: SCjwsI86fS Startdate: 15/11/2020 Architecture: WINDOWS Score: 100 80 daya4659.ddns.net 2->80 86 Malicious sample detected (through community Yara rule) 2->86 88 Antivirus / Scanner detection for submitted sample 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 9 other signatures 2->92 13 SCjwsI86fS.exe 3 2->13         started        17 sfc.exe 1 2->17         started        19 remcos.exe 2->19         started        21 3 other processes 2->21 signatures3 process4 file5 78 C:\Users\user\AppData\Roaming\...\sfc.exe, PE32 13->78 dropped 110 Binary is likely a compiled AutoIt script file 13->110 112 Contains functionality to detect virtual machines (IN, VMware) 13->112 114 Contains functionality to steal Chrome passwords or cookies 13->114 120 3 other signatures 13->120 23 SCjwsI86fS.exe 5 5 13->23         started        26 schtasks.exe 1 13->26         started        116 Antivirus detection for dropped file 17->116 118 Injects a PE file into a foreign processes 17->118 28 schtasks.exe 1 17->28         started        30 sfc.exe 17->30         started        32 schtasks.exe 19->32         started        34 remcos.exe 19->34         started        36 schtasks.exe 21->36         started        38 remcos.exe 21->38         started        40 2 other processes 21->40 signatures6 process7 file8 72 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 23->72 dropped 74 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 23->74 dropped 42 wscript.exe 1 23->42         started        44 conhost.exe 26->44         started        46 conhost.exe 28->46         started        48 conhost.exe 32->48         started        50 conhost.exe 36->50         started        process9 process10 52 cmd.exe 1 42->52         started        process11 54 remcos.exe 1 52->54         started        57 conhost.exe 52->57         started        signatures12 94 Antivirus detection for dropped file 54->94 96 Multi AV Scanner detection for dropped file 54->96 98 Binary is likely a compiled AutoIt script file 54->98 100 4 other signatures 54->100 59 remcos.exe 5 3 54->59         started        64 schtasks.exe 1 54->64         started        process13 dnsIp14 82 daya4659.ddns.net 59->82 84 192.168.2.1 unknown unknown 59->84 76 C:\Users\user\AppData\Roaming\...\logs.dat, data 59->76 dropped 102 Tries to harvest and steal browser information (history, passwords, etc) 59->102 104 Writes to foreign memory regions 59->104 106 Allocates memory in foreign processes 59->106 108 Injects a PE file into a foreign processes 59->108 66 svchost.exe 59->66         started        68 conhost.exe 64->68         started        file15 signatures16 process17 process18 70 WerFault.exe 9 66->70         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674/
Threat name:
Win32.Hacktool.Generic
Create hunting rule
Status:
Suspicious
First seen:
2020-11-14 17:58:18 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rbgtvhcmpryjhkpahc64m5igzlpk5bhhe5qsvszrl4dnmrq6iz2a._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201114-afgd7lkce2/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
daya4659.ddns.net:8282
Unpacked files
SH256 hash:
884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674
MD5 hash:
24ceec2e9d034a5d4f89df6557ee8ecf
SHA1 hash:
dc5a8f7a13f1a3d4ac04138510303511f5d54d6b
Link:
https://www.unpac.me/results/a7077d30-bc5a-4b2b-a3a6-581d5538eea5/
SH256 hash:
0954fe3152ff66dd9dd26dfcb13edf21915e51dec6993600aff97b7a768dc088
MD5 hash:
c9d17b356e7c463f2b4f57e0f98edb1e
SHA1 hash:
16f75139e11c1d673251c8367fea15f44932f881
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/a7077d30-bc5a-4b2b-a3a6-581d5538eea5/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/884d3a9c4c7c7093a9e038bdc67506cadeae84e727612acb315f06d6461e4674

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
Create hunting rule
Author:abuse.ch
Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
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.

  
Delivery method
Other

Comments