MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90528ea50fbbca554dbe4d5f1b6a39b5731bb36a1e1efb79cbe906685b583215. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 90528ea50fbbca554dbe4d5f1b6a39b5731bb36a1e1efb79cbe906685b583215
SHA3-384 hash: 2bb52d22d105cb5d70ff776a35831d9aa48bab57e9ff927525920b2b7f4c8c997a9d7ad5fd5808db09e5afd2492fb8a6
SHA1 hash: 4907871ee88fd8aeef900bc54fd26deb0049db63
MD5 hash: e0f10f49a518510750cbc1aea42d2fc8
humanhash: seven-burger-diet-item
File name:Fedex.exe
Download: download sample
Signature RemcosRAT
File size:1'169'920 bytes
First seen:2022-11-14 13:05:51 UTC
Last seen:2022-11-14 22:53:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:KJ3YqZLFwzSfT1uC+4raaD0h9QguK14ZMZoyLJnMUppppppp:KJIi/fZumL4eK14ZMGSbppppppp
Threatray 2'395 similar samples on MalwareBazaar
TLSH T19C45F23EF21FF54AD2D4B278E9E5020502AB5C5C3C4CA5B87468FA21E076E487A47F5B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c8484a4c4c4a4108 (7 x GuLoader, 2 x Formbook, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe FedEx RAT RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Fedex.exe
Verdict:
Malicious activity
Analysis date:
2022-11-14 13:15:42 UTC
Tags:
rat remcos keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 745582 Sample: Fedex.exe Startdate: 14/11/2022 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Sigma detected: Scheduled temp file as task from temp location 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 6 other signatures 2->52 7 Fedex.exe 7 2->7         started        11 hvuYhFt.exe 5 2->11         started        process3 file4 32 C:\Users\user\AppData\Roaming\hvuYhFt.exe, PE32 7->32 dropped 34 C:\Users\user\...\hvuYhFt.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmp1E69.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\Local\...\Fedex.exe.log, ASCII 7->38 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 7->54 56 Adds a directory exclusion to Windows Defender 7->56 58 Injects a PE file into a foreign processes 7->58 13 Fedex.exe 2 16 7->13         started        18 powershell.exe 18 7->18         started        20 schtasks.exe 1 7->20         started        60 Machine Learning detection for dropped file 11->60 22 schtasks.exe 1 11->22         started        24 hvuYhFt.exe 11->24         started        signatures5 process6 dnsIp7 42 sas.yuldede.com 194.5.98.201, 4040, 49702 DANILENKODE Netherlands 13->42 44 geoplugin.net 178.237.33.50, 49703, 80 ATOM86-ASATOM86NL Netherlands 13->44 40 C:\ProgramData\remcos\logs.dat, data 13->40 dropped 62 Installs a global keyboard hook 13->62 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-11-14 10:33:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat spyware stealer
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
sas.yuldede.com:4040
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
503a4adb05214ab34a870e4549d999c12c39d83312103feebc94851241f4f84f
MD5 hash:
7da5491e7058624f37ebc803572710fc
SHA1 hash:
fe76f04251c3a476499aaa36c2d8b58bc1046a8e
Detections:
Remcos win_remcos_auto
SH256 hash:
5ef81d4e4e3b1d80418739246023a9a86829e1e6febb2b9c6da92d64c26b4e81
MD5 hash:
09055deba49aa17548f2ef0438b8884e
SHA1 hash:
da8e143e682ff84457430291fec7348236de2718
SH256 hash:
9ac8ee0859dc849bef630fe651b5dae0460754915554c17e06036c1d684b6244
MD5 hash:
1185038ebf96ed1c345af9b7c9cb833e
SHA1 hash:
649abec924e92d3e80cbd187a7d0e537393074da
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
SH256 hash:
90528ea50fbbca554dbe4d5f1b6a39b5731bb36a1e1efb79cbe906685b583215
MD5 hash:
e0f10f49a518510750cbc1aea42d2fc8
SHA1 hash:
4907871ee88fd8aeef900bc54fd26deb0049db63
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
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 90528ea50fbbca554dbe4d5f1b6a39b5731bb36a1e1efb79cbe906685b583215

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments