MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b. 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


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b
SHA3-384 hash: b9f0db07ea6c74187d0f97aa6ec9e56bbc3d39ded64e969b1e01b378fd89a81af6fd4f3f7dded433c49c0d12097e2f41
SHA1 hash: c47f4f3b9db15bc73820a0ac720b45d45ad52922
MD5 hash: 3eb124e79bdc93b3aaffed0739c5b13b
humanhash: lemon-connecticut-oregon-carbon
File name:CnTXehUxHo4EdYJ.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:727'552 bytes
First seen:2020-10-20 22:53:54 UTC
Last seen:2020-10-25 18:53:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:7ikVuNB5WhCWwO6LI2iNoRLcROZvsiqoOB6kNeqTZ9HV1QBCz2RS+SeGitY9A:Ei1KZvVBg60TZ9HV1QE8S+M
Threatray 877 similar samples on MalwareBazaar
TLSH 86F4BF2231E8BF50E16D4A3BC8606462DBFAEC13D912D56E78DC369D9FB1BE50522703
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73702/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/501390
Signature
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 19:51:01 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4ku6e7yvctg6r5pv7sathtooyfo6yfpr24nm3pa3dxiht7b56fq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2ac56457e5dfd887f318ab16bbc8fa9711095b8cb4cae99f5a34358c9a8502f0
RemcosRAT
4ca67f02ee334674afe88b3a4329449ecbfb8d9f83ceccc9198c5edecdafa96b
RemcosRAT
54a48d5630f8a4ca57c1107678b3cb68ea03e80878db3dc2ddb9d92227ad542d
RemcosRAT
69b99d16f072c6ab2687da255681f3f1c3a97746bfe516b206644a5056a99425
RemcosRAT
71d7c76b658053e46f6dff1e25fc4ed32bdbe2afd879ce510ce79d327c34bc31
RemcosRAT
867ec49152a23a8e5ea628a48ec1810db588a716b922e6d1c8e7c45116908d24
RemcosRAT
8698337edbeaff1bcd719babffa69ff876d5ee74349886e5cba349b7cae7e19f
RemcosRAT
bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a
RemcosRAT
c1db0bc7089675799a66c321a0401a402b94e0d455037b0cbd76e54188de43c8
RemcosRAT
c5bfbac52396976e672116e5fb07d6cae05d2b07b749d08283a26bcf29677dbe
RemcosRAT
+ 867 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos
Link:
https://tria.ge/reports/201020-3gphqt9p1n/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Remcos
Unpacked files
SH256 hash:
a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b
MD5 hash:
3eb124e79bdc93b3aaffed0739c5b13b
SHA1 hash:
c47f4f3b9db15bc73820a0ac720b45d45ad52922
Link:
https://www.unpac.me/results/7b93a924-9fa3-4402-a51c-c9b5c6d8c574/
SH256 hash:
647b7f15839284080b2a127642058a078428d5ad756cda08488553526e04585f
MD5 hash:
a8801e637b41bcb23c03a107d6fc75c2
SHA1 hash:
786c66a4e3363413c066728fddeaf682094ff25c
Link:
https://www.unpac.me/results/7b93a924-9fa3-4402-a51c-c9b5c6d8c574/
SH256 hash:
c1f3014efaf2118b11c25949e395c114ab71a7363fb2912875339b3191a938bc
MD5 hash:
4d22e69c7664bdadfaacf22ea9cd43e2
SHA1 hash:
a66ba2f18dad08b883efd6eb7403fd219921490f
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/7b93a924-9fa3-4402-a51c-c9b5c6d8c574/
Parent samples :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 hash:
d09aca2e9ae5162081cae1803c0e6ed160d58392e94e5b53045ae8cb235e2f58
MD5 hash:
4c26d9506f554a533d78bf5a04494883
SHA1 hash:
ca1abbec3e5f53f5e3f20ae8fa90d3768341e7b7
Link:
https://www.unpac.me/results/7b93a924-9fa3-4402-a51c-c9b5c6d8c574/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/7b93a924-9fa3-4402-a51c-c9b5c6d8c574/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b

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: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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
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.

316a510879b5142aa0476f5d3fd05d21be5abc5c614b67971a3982b766d59e46

RemcosRAT

Executable exe a7154f13f8a8a66f47afafe4099e6e760aef60af8eb8d66de0d8ee83cfe1ef8b

(this sample)

  
Dropped by
MD5 767ab155d370e4264b362907cb067197
  
Dropped by
SHA256 316a510879b5142aa0476f5d3fd05d21be5abc5c614b67971a3982b766d59e46
  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73702/

Comments