MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3. 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: 20


Intelligence 20 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3
SHA3-384 hash: 5e7f30d198bc0e62e228d3f53a896c24aae93435261ca17cf9bf8b4631f97091cfa0e73671bca7543dfa81d346d93f04
SHA1 hash: 2bde3b87f7a0077d66e960ed8fc0768d27cbd2d2
MD5 hash: 7c7701cd6b41555a14961e59fced48d0
humanhash: ceiling-xray-blue-item
File name:z1______-DRAFT_.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'000'448 bytes
First seen:2025-03-26 07:30:16 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 24576:w1qzMzVnBDb9WPSQJI0tDBrE1BKCKe/+BpvYci7LmpGwbg/:wIYVn5UPvu0VBADI3ByhSv0
TLSH T128251298AB98C903C96117B20D71F67123BE6DD8B911D2069FE9BDEF7872F008D54293
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
504
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
z1______-DRAFT_.scr.exe
Verdict:
Malicious activity
Analysis date:
2025-03-26 07:39:30 UTC
Tags:
remcos rat remote
Link:
https://app.any.run/tasks/fae33ef8-2716-4756-957b-351af0a0b94d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e3ad19cb6d38a89f3e46d5
Tags:
micro lien msil sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Launching a process
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67e3ad16631830704a87624b/reports/c79b705b-5bca-46e0-947a-a0b57531f584/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3
Result
Verdict:
MALICIOUS
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ab3ccc4c-ddd0-4a26-a375-fc943108d1f5
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1648821
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Creates autostart registry keys with suspicious names
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648821 Sample: z1______-DRAFT_.scr.exe Startdate: 26/03/2025 Architecture: WINDOWS Score: 100 60 geoplugin.net 2->60 72 Suricata IDS alerts for network traffic 2->72 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 8 other signatures 2->78 10 z1______-DRAFT_.scr.exe 3 2->10         started        14 wsp.exe 2->14         started        16 wsp.exe 2->16         started        18 wsp.exe 2 2->18         started        signatures3 process4 file5 58 C:\Users\user\...\z1______-DRAFT_.scr.exe.log, ASCII 10->58 dropped 86 Contains functionality to bypass UAC (CMSTPLUA) 10->86 88 Contains functionalty to change the wallpaper 10->88 90 Contains functionality to steal Chrome passwords or cookies 10->90 94 2 other signatures 10->94 20 z1______-DRAFT_.scr.exe 2 4 10->20         started        24 backgroundTaskHost.exe 10->24         started        92 Injects a PE file into a foreign processes 14->92 26 wsp.exe 14->26         started        28 wsp.exe 14->28         started        30 wsp.exe 16->30         started        32 wsp.exe 18->32         started        signatures6 process7 file8 54 C:\ProgramData\WSP\wsp.exe, PE32 20->54 dropped 56 C:\ProgramData\WSP\wsp.exe:Zone.Identifier, ASCII 20->56 dropped 80 Creates autostart registry keys with suspicious names 20->80 34 wsp.exe 3 20->34         started        signatures9 process10 signatures11 66 Antivirus detection for dropped file 34->66 68 Multi AV Scanner detection for dropped file 34->68 70 Injects a PE file into a foreign processes 34->70 37 wsp.exe 4 14 34->37         started        41 wsp.exe 34->41         started        43 wsp.exe 34->43         started        45 wsp.exe 34->45         started        process12 dnsIp13 62 104.250.180.178, 49721, 49722, 7902 M247GB United States 37->62 64 geoplugin.net 178.237.33.50, 49723, 80 ATOM86-ASATOM86NL Netherlands 37->64 82 Writes to foreign memory regions 37->82 84 Maps a DLL or memory area into another process 37->84 47 recover.exe 14 37->47         started        50 recover.exe 1 37->50         started        52 recover.exe 1 37->52         started        signatures14 process15 signatures16 96 Tries to steal Mail credentials (via file registry) 47->96 98 Tries to harvest and steal browser information (history, passwords, etc) 47->98 100 Tries to steal Instant Messenger accounts or passwords 50->100 102 Tries to steal Mail credentials (via file / registry access) 52->102
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-03-26 07:30:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=angvbizpjubptakz37q2is6nh6d25klk6sjubviw5vfg45cjfgrq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/250326-jb1cjay1ax/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
104.250.180.178:7902
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/25b5cc89-0d39-4c13-b8bc-f855826e7fc1
Unpacked files
SH256 hash:
034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3
MD5 hash:
7c7701cd6b41555a14961e59fced48d0
SHA1 hash:
2bde3b87f7a0077d66e960ed8fc0768d27cbd2d2
Link:
https://www.unpac.me/results/d12f01f1-7b54-4c55-9c5d-184f464359dd/
SH256 hash:
565225a8561134b4966c139430b4d6945eedd45444d8435a48c6e7f41f7f7e30
MD5 hash:
3aebca61c665584c799acf55900cb26e
SHA1 hash:
3717a4f60d2822dfd8effda5490c93e7ccb38ebc
Link:
https://www.unpac.me/results/d12f01f1-7b54-4c55-9c5d-184f464359dd/
SH256 hash:
f6a1a48142e71410ea3b2665cb253713dff56bd21af6180d9c9094947c4b9c8f
MD5 hash:
e2511446137eaaaef3ae3a2cabd9ac5f
SHA1 hash:
a244b12791c29b98e9cd52a67d8f5b1fe0b67fc6
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/d12f01f1-7b54-4c55-9c5d-184f464359dd/
Parent samples :
f5478a5c7ac7dcb529af143345acd8aaaaa66b9cd92bcd38b645a5ded6c2f097
d7bc6079ee97a1977556f37fdbe89f064ad7bf206448058588a109902bd08ac0
33a8c3e40fddaad6562484999ff394278be8b5310591a73bcd01573354dd20d5
034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3
d326515f14a0af4f4642d3f79806f8d8d75f4b310f3670ed6803f7dadd737279
SH256 hash:
41f4a7f72a65d436087af67257769ce7fc2b8360d6f0e58a9333d63f1b509595
MD5 hash:
12775676481c0335a771ead4a5da65ac
SHA1 hash:
cd890e642a3806857854c6cdbad91bdd3dc75ac3
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/d12f01f1-7b54-4c55-9c5d-184f464359dd/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/034d50a32f4d/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/034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

RemcosRAT

Executable exe 034d50a32f4d02f98159dfe1a44bcd3f87aea96af49340d516ed4a6e744929a3

(this sample)

  
Delivery method
Distributed via e-mail attachment

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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