MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109. 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: 17


Intelligence 17 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109
SHA3-384 hash: 1f95744623312aa9d68365ebf5dcc05d0c8a795ba745a928d2c4bc25427d059032bd32bf8df5145b6cb038075b86884d
SHA1 hash: 34b6152387cb43947bb00b47abd6903e28a8103d
MD5 hash: e82163d300e4f3a3edd8a123c9acb9c1
humanhash: football-cola-jupiter-virginia
File name:rPO59687543.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:471'552 bytes
First seen:2023-07-11 01:53:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:WSDk309x96zHcrpW42qUCPCdMWhA6QBdAgHH5GV2b2qr:Po3092zHopt/PCtA6QBzpqW
Threatray 2'384 similar samples on MalwareBazaar
TLSH T117A4C4446B8A95B9CD3CB4BA9B9500C697BE31E32316FC241FCB997B37975480F62C24
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon e4e4ccdcb2c2c4cc (1 x RemcosRAT)
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
436
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
avemaria
Create hunting rule
ID:
1
File name:
rPO59687543.exe
Verdict:
Malicious activity
Analysis date:
2023-07-11 01:53:38 UTC
Tags:
stealer rat avemaria warzone arkei remcos keylogger
Link:
https://app.any.run/tasks/167eed31-e7fa-4c75-9b09-1d579ae3a75b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
WarzoneRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/414838/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.17013.15895.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Reading critical registry keys
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Sending a TCP request to an infection source
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin msbuild packed remcos
Link:
https://www.filescan.io/uploads/64acb63a57d1eb6a904eee13/reports/11de58af-68ee-4526-b01b-84d957713dc8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/932f18e9-b701-462c-b2db-232984873de3
Result
Threat name:
Remcos, AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1270430
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal e-mail passwords
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Set autostart key via New-ItemProperty Cmdlet
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AveMaria stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1270430 Sample: rPO59687543.exe Startdate: 11/07/2023 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 15 other signatures 2->56 9 rPO59687543.exe 1 2->9         started        process3 file4 40 C:\Users\user\AppData\...\rPO59687543.exe.log, ASCII 9->40 dropped 68 Writes to foreign memory regions 9->68 70 Allocates memory in foreign processes 9->70 72 Injects a PE file into a foreign processes 9->72 13 MSBuild.exe 3 19 9->13         started        18 MSBuild.exe 9->18         started        signatures5 process6 dnsIp7 46 91.192.100.10, 10011, 11010, 49709 AS-SOFTPLUSCH Switzerland 13->46 48 transfer.sh 144.76.136.153, 443, 49710 HETZNER-ASDE Germany 13->48 42 C:\Users\user\AppData\Roaming\fruxbaydq.exe, PE32 13->42 dropped 44 C:\Users\user\...\approvalttttwwww[1].exe, PE32 13->44 dropped 74 Tries to harvest and steal browser information (history, passwords, etc) 13->74 76 Increases the number of concurrent connection per server for Internet Explorer 13->76 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->78 20 fruxbaydq.exe 4 13->20         started        80 Contains functionality to steal Chrome passwords or cookies 18->80 82 Contains functionality to steal e-mail passwords 18->82 file8 signatures9 process10 file11 36 C:\Users\user\AppData\...\MyDellService.exe, PE32 20->36 dropped 58 Machine Learning detection for dropped file 20->58 60 Writes to foreign memory regions 20->60 62 Allocates memory in foreign processes 20->62 64 Injects a PE file into a foreign processes 20->64 24 RegSvcs.exe 3 3 20->24         started        28 powershell.exe 1 22 20->28         started        30 RegSvcs.exe 20->30         started        32 RegSvcs.exe 20->32         started        signatures12 process13 file14 38 C:\ProgramData\remcos\logs.dat, data 24->38 dropped 66 Installs a global keyboard hook 24->66 34 conhost.exe 28->34         started        signatures15 process16
Detection:
avemaria
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109/
Threat name:
Win32.Backdoor.Warzone
Create hunting rule
Status:
Malicious
First seen:
2023-07-11 01:54:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfakejtnksvll54h4242hce7wpdblwlvjxsgvus2por2dnp6seeq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
avemaria
Create hunting rule
Similar samples:
4971385527e6ce21165b8b519928f83c20e9e32488dcb4309c3241e0721e1f85
RemcosRAT
4cd2a6b92caa467a8e4b72426b8d2823e1d00ef28a62b28e5df91527a8d44f65
RemcosRAT
555781a1e79cedec7352e9d85eb0a9f64dbbdee6873e481c91e35c48505e6ba2
RemcosRAT
64f2a6308c94b35be90cc1085538912c33956c06182756cd324f6874ae6c62f6
RemcosRAT
845aea480b4e69994eec7fc5b5db0b1377746ac925bd093d327325c8d84bb576
RemcosRAT
853e1ec7d4d8fa449d88746cab1bfac6074e0d81e9a26ef6948793059e9bd781
RemcosRAT
b71ac80addac74e89b71f6893d989d7233d8174b8836138a3292cc1409ae8e58
RemcosRAT
f0b92472c6a95a379f7235c22460fdb3602d625a662141e7baecc48c049ad715
RemcosRAT
+ 2'374 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:remcos family:warzonerat botnet:remotehost collection infostealer persistence rat
Link:
https://tria.ge/reports/230711-cbjapaeb37/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Warzone RAT payload
Remcos
WarzoneRat, AveMaria
Malware Config
C2 Extraction:
91.192.100.10:10011
91.192.100.10:11010
Unpacked files
SH256 hash:
477cab8d4385172d679200edc6619462de2402d912f21f36981fc058987a6d52
MD5 hash:
16a9ddc4b32981114fe4f069a4353105
SHA1 hash:
bf73849f57c150f9e2199c61427f631be2dfa595
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
fd56a07f2da75c84337cbf94e0acafc09fb909cfb187a0ae214827ce2c4708bb
MD5 hash:
d93c5f59ddc41313bf36f106a2f1fe17
SHA1 hash:
97c5cd9d0689c1cd74685bc979122a13eba3fcc9
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
34cc7553faef904192ea574842eb176ae96934ac654ec1760a00fd328c86d050
MD5 hash:
d5b2ac87f730b3570898b7a678aa8fda
SHA1 hash:
2e8f9fe19ef49f98d426478974bac76c6d205845
Detections:
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
f71d97c3d42af0eb4cc74e640a995eb0f288bab59b7be5cd89eccb21cd304f36
MD5 hash:
6c72218c48cd68cbcb654675053a0abb
SHA1 hash:
12207fa32070f99683648d87b44410e5d3cdf2de
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
477cab8d4385172d679200edc6619462de2402d912f21f36981fc058987a6d52
MD5 hash:
16a9ddc4b32981114fe4f069a4353105
SHA1 hash:
bf73849f57c150f9e2199c61427f631be2dfa595
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
fd56a07f2da75c84337cbf94e0acafc09fb909cfb187a0ae214827ce2c4708bb
MD5 hash:
d93c5f59ddc41313bf36f106a2f1fe17
SHA1 hash:
97c5cd9d0689c1cd74685bc979122a13eba3fcc9
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
34cc7553faef904192ea574842eb176ae96934ac654ec1760a00fd328c86d050
MD5 hash:
d5b2ac87f730b3570898b7a678aa8fda
SHA1 hash:
2e8f9fe19ef49f98d426478974bac76c6d205845
Detections:
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
f71d97c3d42af0eb4cc74e640a995eb0f288bab59b7be5cd89eccb21cd304f36
MD5 hash:
6c72218c48cd68cbcb654675053a0abb
SHA1 hash:
12207fa32070f99683648d87b44410e5d3cdf2de
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
477cab8d4385172d679200edc6619462de2402d912f21f36981fc058987a6d52
MD5 hash:
16a9ddc4b32981114fe4f069a4353105
SHA1 hash:
bf73849f57c150f9e2199c61427f631be2dfa595
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
fd56a07f2da75c84337cbf94e0acafc09fb909cfb187a0ae214827ce2c4708bb
MD5 hash:
d93c5f59ddc41313bf36f106a2f1fe17
SHA1 hash:
97c5cd9d0689c1cd74685bc979122a13eba3fcc9
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
34cc7553faef904192ea574842eb176ae96934ac654ec1760a00fd328c86d050
MD5 hash:
d5b2ac87f730b3570898b7a678aa8fda
SHA1 hash:
2e8f9fe19ef49f98d426478974bac76c6d205845
Detections:
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
f71d97c3d42af0eb4cc74e640a995eb0f288bab59b7be5cd89eccb21cd304f36
MD5 hash:
6c72218c48cd68cbcb654675053a0abb
SHA1 hash:
12207fa32070f99683648d87b44410e5d3cdf2de
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
477cab8d4385172d679200edc6619462de2402d912f21f36981fc058987a6d52
MD5 hash:
16a9ddc4b32981114fe4f069a4353105
SHA1 hash:
bf73849f57c150f9e2199c61427f631be2dfa595
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
fd56a07f2da75c84337cbf94e0acafc09fb909cfb187a0ae214827ce2c4708bb
MD5 hash:
d93c5f59ddc41313bf36f106a2f1fe17
SHA1 hash:
97c5cd9d0689c1cd74685bc979122a13eba3fcc9
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
34cc7553faef904192ea574842eb176ae96934ac654ec1760a00fd328c86d050
MD5 hash:
d5b2ac87f730b3570898b7a678aa8fda
SHA1 hash:
2e8f9fe19ef49f98d426478974bac76c6d205845
Detections:
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Warzone
Create hunting rule
win_ave_maria_auto
Create hunting rule
win_ave_maria_g0
Create hunting rule
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
f71d97c3d42af0eb4cc74e640a995eb0f288bab59b7be5cd89eccb21cd304f36
MD5 hash:
6c72218c48cd68cbcb654675053a0abb
SHA1 hash:
12207fa32070f99683648d87b44410e5d3cdf2de
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
SH256 hash:
a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109
MD5 hash:
e82163d300e4f3a3edd8a123c9acb9c1
SHA1 hash:
34b6152387cb43947bb00b47abd6903e28a8103d
Link:
https://www.unpac.me/results/cbc38fb2-2658-432e-b43f-d1562e828277/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a940a2266d54/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/a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding command execution via IExecuteCommand COM object
Rule name:MALWARE_Win_AveMaria
Create hunting rule
Author:ditekSHen
Description:AveMaria variant payload
Rule name:MALWARE_Win_WarzoneRAT
Create hunting rule
Author:ditekSHen
Description:Detects AveMaria/WarzoneRAT
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AveMaria_31d2bce9
Create hunting rule
Author:Elastic Security

File information

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

Malspam

RemcosRAT

Executable exe a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/414838/

Comments