MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
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SHA256 hash: 28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae
SHA3-384 hash: 9722dec9c43fd334a869800b7b15e5917ba3e85dbe4625f5e7b7cf5cf6d79946e417118c85e3ac1de0b31d1c69e49326
SHA1 hash: 6b416a536c8f452a93dee796495dbee36ebda4ad
MD5 hash: 32bed0dc51ae3921a0505fd023dbf5be
humanhash: jupiter-item-steak-september
File name:Quotation.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'269'248 bytes
First seen:2024-08-14 17:08:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 65fa1938ec776cb244c2f8811e13aadc (2 x RemcosRAT)
ssdeep 24576:UMa3J1TbjIuI1OHXTXYYPajiFGoI3ajHucOWVQy/vrAFGSi29kQXY1Max2bnE:UMk27eayHabnE
TLSH T1C9459D029A4027B2F62A25774C5BB7E7632D7D247E486C312AF0395C193F7D2B8174AB
TrID 65.0% (.EXE) InstallShield setup (43053/19/16)
15.8% (.EXE) Win64 Executable (generic) (10523/12/4)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
3.1% (.EXE) Win16/32 Executable Delphi generic (2072/23)
3.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f4b4d4d4c4d0d4c4 (3 x RemcosRAT)
Reporter cocaman
Tags:DBatLoader exe ModiLoader RAT RemcosRAT RFQ

Intelligence

File Origin
# of uploads :
1
# of downloads :
423
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quotation.uue
Verdict:
No threats detected
Analysis date:
2024-08-14 17:08:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3126bc7f-584a-4301-8fc5-cb7209497e84

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.26123.25965.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66bce4b0aa5b40be0aa0359a
Tags:
Discovery Execution Generic Infostealer Network Static Stealth Trojan
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
borland_delphi fingerprint keylogger
Link:
https://www.filescan.io/uploads/66bce4b03930e113b90b4de5/reports/5202ecee-fc78-4275-ad1a-ae1831be03dd/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae
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.
Malware family:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3042f378-325d-4e26-82ae-cae19afaa2b3
Result
Threat name:
DBatLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1492966
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Drops or copies cmd.exe with a different name (likely to bypass HIPS)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Suricata IDS alerts for network traffic
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1492966 Sample: Quotation.exe Startdate: 14/08/2024 Architecture: WINDOWS Score: 100 52 wigilabs.com.mx 2->52 54 whitelend-ind.com 2->54 56 geoplugin.net 2->56 66 Suricata IDS alerts for network traffic 2->66 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 12 other signatures 2->72 9 Quotation.exe 4 22 2->9         started        14 Wistvfan.PIF 2->14         started        16 Wistvfan.PIF 2->16         started        signatures3 process4 dnsIp5 60 wigilabs.com.mx 199.101.48.42, 443, 49716, 49717 HOSTROCKETUS United States 9->60 62 whitelend-ind.com 23.95.60.82, 30901, 49724 AS-COLOCROSSINGUS United States 9->62 64 geoplugin.net 178.237.33.50, 49730, 80 ATOM86-ASATOM86NL Netherlands 9->64 44 C:\Users\Public\Wistvfan.url, MS 9->44 dropped 46 C:\Users\Public\Libraries\nafvtsiW.cmd, DOS 9->46 dropped 48 C:\Users\Public\Libraries\Wistvfan, data 9->48 dropped 50 C:\ProgramData\Chrome\logs.dat, data 9->50 dropped 80 Contains functionalty to change the wallpaper 9->80 82 Contains functionality to register a low level keyboard hook 9->82 84 Installs a global keyboard hook 9->84 92 2 other signatures 9->92 18 cmd.exe 1 9->18         started        20 esentutl.exe 2 9->20         started        86 Multi AV Scanner detection for dropped file 14->86 88 Contains functionality to bypass UAC (CMSTPLUA) 14->88 90 Machine Learning detection for dropped file 14->90 94 2 other signatures 14->94 file6 signatures7 process8 file9 23 esentutl.exe 2 18->23         started        27 alpha.pif 1 18->27         started        29 esentutl.exe 2 18->29         started        33 6 other processes 18->33 38 C:\Users\Public\Libraries\Wistvfan.PIF, PE32 20->38 dropped 31 conhost.exe 20->31         started        process10 file11 40 C:\Users\Public\alpha.pif, PE32 23->40 dropped 74 Drops PE files to the user root directory 23->74 76 Drops PE files with a suspicious file extension 23->76 78 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 23->78 35 xpha.pif 1 27->35         started        42 C:\Users\Public\xpha.pif, PE32 29->42 dropped signatures12 process13 dnsIp14 58 127.0.0.1 unknown unknown 35->58
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-13 06:12:25 UTC
File Type:
PE (Exe)
Extracted files:
99
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fcsc6rqgzr7d6wwljriwuvzi6hjjztykoxlbtzphoj45rjdtrsxa._file
Verdict:
malicious
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery persistence trojan
Link:
https://tria.ge/reports/240814-vn4q9sybnr/
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bc3e6555-8183-42d5-b348-693c5beb5d67
Gathering data
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/28a42f4606cc/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/28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Malspam

RemcosRAT

uue c3507c427f61711edc73e2ea4fe84bac8c420285ac0d2e160f39c1aa2ffe7557

RemcosRAT

Executable exe 28a42f4606cc7e3f5acb4c516a5728f1d29ccf0a75d619e5e77279d8a4738cae

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c3507c427f61711edc73e2ea4fe84bac8c420285ac0d2e160f39c1aa2ffe7557
  
Dropped by
MD5 4b3c318a3747a62ea3d57059b5e35e9c

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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