MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64. 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


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64
SHA3-384 hash: c70dfd701a3ce5fd505b3e030486f475027d6b049957baddb041a868881fb8436d9ab1b84c52d9d1161a44c481f3ed0c
SHA1 hash: 8a649035eced527c6ea494477e557e54e7ae4827
MD5 hash: d3e9e9d3dfc06c30f6be40e0410a575c
humanhash: cola-summer-kansas-four
File name:d0b443110cf5a7bd05759c00fee8fdad.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'012'736 bytes
First seen:2021-02-03 10:23:42 UTC
Last seen:2021-02-03 12:21:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:iZi9709qEa+zlSRLUIQGDzk/M14I+Ai+N0SZzwDYDVqLurzVSiRfrQrba9RhcMNe:iZO+zERQW1L8Stw/LsIiRknafh342i9
Threatray 4 similar samples on MalwareBazaar
TLSH 1525121127BD5F4BE7663FF809B5D26497BE695A2811C30DCEE239C81970F891A80F93
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: slot0.groveressentials.xyz
Sending IP: 203.159.80.67
From: Sales3 - Order <order@groveressentials.xyz>
Subject: rfq/2020/QUOTATION 20200102NEW ORDER
Attachment: d0b443110cf5a7bd05759c00fee8fdad.zip (contains "d0b443110cf5a7bd05759c00fee8fdad.exe")

RemcosRAT C2:
sandshoe.myfirewall.org

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d0b443110cf5a7bd05759c00fee8fdad.exe
Verdict:
Malicious activity
Analysis date:
2021-02-03 10:29:39 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/47e9fe58-a2a3-4492-86cc-506c501f386f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/115287/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42827.18124.32470.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/597669
Signature
Allocates memory in foreign processes
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
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
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 347872 Sample: d0b443110cf5a7bd05759c00fee... Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 58 sandshoe.myfirewall.org 2->58 78 Multi AV Scanner detection for domain / URL 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Detected Remcos RAT 2->82 84 5 other signatures 2->84 14 d0b443110cf5a7bd05759c00fee8fdad.exe 3 2->14         started        18 svchosts.exe 2 2->18         started        signatures3 process4 file5 56 d0b443110cf5a7bd05759c00fee8fdad.exe.log, ASCII 14->56 dropped 92 Contains functionality to steal Chrome passwords or cookies 14->92 94 Contains functionality to capture and log keystrokes 14->94 96 Contains functionality to inject code into remote processes 14->96 100 2 other signatures 14->100 20 d0b443110cf5a7bd05759c00fee8fdad.exe 5 5 14->20         started        98 Injects a PE file into a foreign processes 18->98 23 svchosts.exe 18->23         started        25 svchosts.exe 18->25         started        27 svchosts.exe 18->27         started        signatures6 process7 file8 52 C:\Users\user\AppData\...\svchosts.exe, PE32 20->52 dropped 54 C:\Users\...\svchosts.exe:Zone.Identifier, ASCII 20->54 dropped 29 wscript.exe 1 20->29         started        process9 process10 31 cmd.exe 1 29->31         started        process11 33 svchosts.exe 3 31->33         started        37 conhost.exe 31->37         started        file12 50 C:\Users\user\AppData\...\svchosts.exe.log, ASCII 33->50 dropped 70 Multi AV Scanner detection for dropped file 33->70 72 Detected unpacking (creates a PE file in dynamic memory) 33->72 74 Machine Learning detection for dropped file 33->74 76 4 other signatures 33->76 39 svchosts.exe 4 3 33->39         started        signatures13 process14 dnsIp15 60 sandshoe.myfirewall.org 79.134.225.96, 2404, 49731, 49734 FINK-TELECOM-SERVICESCH Switzerland 39->60 62 192.168.2.1 unknown unknown 39->62 86 Writes to foreign memory regions 39->86 88 Allocates memory in foreign processes 39->88 90 Injects a PE file into a foreign processes 39->90 43 svchost.exe 39->43         started        signatures16 process17 process18 45 iexplore.exe 43->45         started        process19 47 iexplore.exe 45->47         started        dnsIp20 64 avatars.githubusercontent.com 47->64 66 github.com 140.82.121.3, 443, 49741, 49742 GITHUBUS United States 47->66 68 github.map.fastly.net 151.101.0.133, 443, 49745, 49746 FASTLYUS United States 47->68
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 10:24:09 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zlh5h44eon7ylybprrg7vuditjy3ekgixeyjsxbe3jbvql3irjsa._file
Verdict:
unknown
Similar samples:
035cba8ea6bbe0336a0221e86b571e530764939150df17f636fd23ad30db3f27
RemcosRAT
2f85c41ee13d69e68454d97153252e8ba9a3a0e85573427eac0600d41fa6824d
RemcosRAT
553caa644cbf9022987290140354f878981f281eb487847afa5017eca470c279
RemcosRAT
eddb00e96bcae82158333e9c0a0e0e1cf8002af1f6287fe8a99f5e3d619af2fb
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat
Link:
https://tria.ge/reports/210203-msn8qf64za/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
Link:
https://www.unpac.me/results/dc9c6f5e-b655-4aae-abed-299bb86699e3/
SH256 hash:
bf99bbc1d8b8cb6448d171bb134abac1c17a4857caf7ff857dd041dbea09c6ba
MD5 hash:
de0dcb3f70bccf98b6f33f40cff929cf
SHA1 hash:
2f973389d1d3dd09a410d5a9ee3b275bfcc44d2a
Link:
https://www.unpac.me/results/dc9c6f5e-b655-4aae-abed-299bb86699e3/
SH256 hash:
fda586fc85035d9de552fd0d0a816988c5a7266d7d44db98c59e4116b6ece6e0
MD5 hash:
2a7b39eb0fbc69ad4cb9a9b234e98012
SHA1 hash:
0225b48399977f908416ba231577c8d218914189
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/dc9c6f5e-b655-4aae-abed-299bb86699e3/
SH256 hash:
cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64
MD5 hash:
d3e9e9d3dfc06c30f6be40e0410a575c
SHA1 hash:
8a649035eced527c6ea494477e557e54e7ae4827
Link:
https://www.unpac.me/results/dc9c6f5e-b655-4aae-abed-299bb86699e3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

unknown a38c93e0d742e0bef18aebfbd3e0a4b77ae740f6489698831bd6c0425edfd1cd

RemcosRAT

Executable exe cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64

(this sample)

  
Dropped by
MD5 26ab50b94646fb09b2383f507f832dd9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115287/
  
Dropped by
SHA256 a38c93e0d742e0bef18aebfbd3e0a4b77ae740f6489698831bd6c0425edfd1cd

Comments