MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb
SHA3-384 hash: 30d17d9452b43d438e50b7c3eb2260a4153c4f0be216fd95c977cb3e71cd6ce5ea52497d81ffdd40aef9c389c38f4fb9
SHA1 hash: a5bac17a8b9c282bb29c11a94934e2ded8bb1fd7
MD5 hash: 0a49ca8fcc52e5be7bc07d8ed966ec8e
humanhash: wyoming-oranges-video-nineteen
File name:724-68839035 Shipment Documents.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'011'712 bytes
First seen:2021-08-26 21:16:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:rDyx8Q8NF7/Uv1Mpk6+7SzjGbhVosJXwCn9nmsMwFeruN4QPujP:Py2LFwv1Mpmmao0nmCermu
Threatray 10'971 similar samples on MalwareBazaar
TLSH T11E25B33D29BD2627D175C7B6CBE08827F154A8AF3111AE6468D383AA4356F4275C323F
dhash icon d1130367677b1e8d (7 x AgentTesla, 5 x Formbook, 5 x Loki)
Reporter GovCERT_CH
Tags:AgentTesla exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
724-68839035 Shipment Documents.exe
Verdict:
Malicious activity
Analysis date:
2021-08-26 21:19:01 UTC
Tags:
rat remcos stealer
Link:
https://app.any.run/tasks/08c987f3-8b7d-4438-97c6-1758e3b00758

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/182763/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1011.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Creating a file
Connection attempt to an infection source
Creating a process from a recently created file
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e072c23c-c4aa-4fae-ac28-a4a0abb0ba05
Result
Threat name:
Remcos AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/840086
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
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
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Suspicious Process Start Without DLL
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)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 472513 Sample: 724-68839035 Shipment Docum... Startdate: 26/08/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 14 other signatures 2->68 9 724-68839035 Shipment Documents.exe 7 2->9         started        process3 file4 40 C:\Users\user\AppData\Roaming\WsEzOeo.exe, PE32 9->40 dropped 42 C:\Users\user\AppData\Local\...\tmp4FD1.tmp, XML 9->42 dropped 44 724-68839035 Shipment Documents.exe.log, ASCII 9->44 dropped 12 RegSvcs.exe 1 3 9->12         started        16 RegSvcs.exe 9->16         started        19 schtasks.exe 1 9->19         started        process5 dnsIp6 50 obby.hopto.org 91.193.75.212, 25321, 49734 DAVID_CRAIGGG Serbia 12->50 46 C:\Users\user\AppData\Local\Temp\dwnl.exe, PE32 12->46 dropped 21 dwnl.exe 6 12->21         started        54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->54 56 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->56 58 Contains functionality to detect virtual machines (IN, VMware) 16->58 60 4 other signatures 16->60 26 conhost.exe 19->26         started        file7 signatures8 process9 dnsIp10 48 192.168.2.1 unknown unknown 21->48 38 C:\Users\user\AppData\Roaming\WkyTycWp.exe, PE32 21->38 dropped 70 Writes to foreign memory regions 21->70 72 Injects a PE file into a foreign processes 21->72 28 RegSvcs.exe 15 2 21->28         started        32 schtasks.exe 1 21->32         started        34 RegSvcs.exe 21->34         started        file11 signatures12 process13 dnsIp14 52 api.telegram.org 149.154.167.220, 443, 49758 TELEGRAMRU United Kingdom 28->52 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 28->74 76 Tries to steal Mail credentials (via file access) 28->76 78 Tries to harvest and steal ftp login credentials 28->78 80 Tries to harvest and steal browser information (history, passwords, etc) 28->80 36 conhost.exe 32->36         started        signatures15 process16
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-26 21:17:05 UTC
AV detection:
8 of 28 (28.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k72jo3b7gv45dxedffaqryd5asbhwltw7se4p7ozfdpvxlvtb75q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
18674b0b6d6dc54a7feb266134b8bed1c17e0f072ad975749baed3d62e069420
RemcosRAT
2da22cc63d2a847ee1794ae13a515ec02c002cd7e597661fc3a8c4b7a3b9cd9a
RemcosRAT
3e81cacf8070232edbe7c2443a72df9d59d4631b8d74a0d513aa535bef475a02
RemcosRAT
576bd2675f162947f527b72c50c9fd29c27bb507aba8ab7ea9a09d179024207c
RemcosRAT
68442a9372810226cdbc091536d6b782ad6a503cf3a86f526f4f76c76866018d
RemcosRAT
7b5a30d13eafaef4730590f5b78d96ebaf2986b97147dac47fd8dcd6a9dd095e
RemcosRAT
c042c748985e1dbc468a0c92a66232e55b362bb5901beceb79ae5b466b9e6e06
RemcosRAT
c50594e26bf475268109c2843864ef12acaead42dba369abbff672f2e0db55bf
RemcosRAT
fb2dcb213dd2f988c026af22882cce2e36a2f84ce380fe088352dd57d591c459
RemcosRAT
+ 10'961 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:remcos botnet:dave keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/210826-vem2n7dg7x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
AgentTesla Payload
AgentTesla
Remcos
Malware Config
C2 Extraction:
obby.hopto.org:25321
https://api.telegram.org/bot1842959733:AAFY3p5rwdG6JV0Y6_CQjuDBIdfxG4yDKKA/sendDocument
Unpacked files
SH256 hash:
c0ee1071e444f415f8b62856a0896f3b22e563f1bb4f03d14142583efe49a565
MD5 hash:
29db2e114b88ae1f6a00c9aa71690043
SHA1 hash:
ec82db71443556a5b320357b0b8b09e70ec1db9c
Link:
https://www.unpac.me/results/d2ad9045-c132-4016-b826-2df763f48c0e/
SH256 hash:
9f38d9aabb9e3ea000afac8d1b1d865b68be801f446754f6f602c60168e8c2ec
MD5 hash:
96c5ec409f74e5d23c63e739eded87bc
SHA1 hash:
6e540d34412fc2767bee502a366c42fd8c7946ab
Link:
https://www.unpac.me/results/d2ad9045-c132-4016-b826-2df763f48c0e/
SH256 hash:
8cc731420724a4f88055a3ff47ec39442716bb50beabcc01d88af65547ae0318
MD5 hash:
7d194d6d3350013c5bafad0774c9baef
SHA1 hash:
3a35610558a1b941c31665bdd8b4853ef4d63ef5
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d2ad9045-c132-4016-b826-2df763f48c0e/
Parent samples :
57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb
9909103ba179d1f7891f2cf89dda981e6af15806b171de1cfbc51833ae91de18
SH256 hash:
57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb
MD5 hash:
0a49ca8fcc52e5be7bc07d8ed966ec8e
SHA1 hash:
a5bac17a8b9c282bb29c11a94934e2ded8bb1fd7
Link:
https://www.unpac.me/results/d2ad9045-c132-4016-b826-2df763f48c0e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/57f4976c3f35/report/overview.html
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/57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe 57f4976c3f3579d1dc83294108e07d04827b2e76fc89c7fdd928df5baeb30ffb

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/182763/

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