MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26
SHA3-384 hash: b16ed91b04376ea9fcb44949b9c7fe673abafbbe3315ad615c54127bdc0b37ea9819c49d52a3b8bc1865b4a8c8714485
SHA1 hash: a7163e6146678cbff533f11cf7bfc77665eebde1
MD5 hash: 7092f380213483470295ec380eb16001
humanhash: uncle-delaware-lima-zebra
File name:MAERSK Release 242397734 SBK0000508124_pdf
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:529'408 bytes
First seen:2024-08-05 06:43:39 UTC
Last seen:2024-08-05 07:33:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:hZTPGQ3byfjwr/FvPEhKIKbF+jpyLtxQh70I:v/8KIKbUQxQh3
Threatray 1'118 similar samples on MalwareBazaar
TLSH T13BB4072092958635EB2D037CD021490ED2F9CD7F625FE79ADC47BDB92442B906AF2237
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 24e4c8d0f0c8d4d4 (15 x AgentTesla, 7 x RemcosRAT, 6 x Formbook)
Reporter abuse_ch
Tags:exe Maersk MAERSK Release 242397734 SBK0000508124_pdf RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
383
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
MAERSK Release 242397734 SBK0000508124_pdf
Verdict:
Malicious activity
Analysis date:
2024-08-05 07:05:18 UTC
Tags:
payload opendir netreactor rat remcos remote evasion
Link:
https://app.any.run/tasks/12cc1424-22f3-4e9f-a2be-d3ed13db91ca

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66b074ba037b02d0daeda87e
Tags:
Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/66b074b5b67cf38542c3c633/reports/f4073d8f-8591-4fba-bd00-e7cab64d244a/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26
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/6e24ab1a-533d-4b47-a709-a0d8c558f146
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1487816
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1487816 Sample: MAERSK Release 242397734 SB... Startdate: 05/08/2024 Architecture: WINDOWS Score: 100 39 56.126.166.20.in-addr.arpa 2->39 41 geoplugin.net 2->41 47 Multi AV Scanner detection for domain / URL 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 11 other signatures 2->53 8 MAERSK Release 242397734 SBK0000508124_pdf.exe 16 4 2->8         started        13 Hmrnsc.exe 14 2 2->13         started        15 Hmrnsc.exe 2 2->15         started        signatures3 process4 dnsIp5 43 172.96.172.166, 49704, 64533, 64538 RELIABLESITEUS United States 8->43 31 C:\Users\user\AppData\Roaming\Hmrnsc.exe, PE32 8->31 dropped 33 C:\Users\user\...\Hmrnsc.exe:Zone.Identifier, ASCII 8->33 dropped 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->55 57 Writes to foreign memory regions 8->57 59 Injects a PE file into a foreign processes 8->59 17 InstallUtil.exe 3 13 8->17         started        61 Multi AV Scanner detection for dropped file 13->61 63 Machine Learning detection for dropped file 13->63 65 Allocates memory in foreign processes 13->65 21 InstallUtil.exe 13->21         started        23 InstallUtil.exe 13->23         started        25 InstallUtil.exe 13->25         started        27 InstallUtil.exe 15->27         started        file6 signatures7 process8 dnsIp9 35 95.214.54.179, 2301, 49705 PL-SKYTECH-ASPL Poland 17->35 37 geoplugin.net 178.237.33.50, 49710, 80 ATOM86-ASATOM86NL Netherlands 17->37 45 Detected Remcos RAT 17->45 29 WerFault.exe 21->29         started        signatures10 process11
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qicil7vy3c44cpz7fpadp54rrmfdqutmn5yzh6dywlkbavznvqta._file
Verdict:
malicious
Similar samples:
145dbb397089105d6d06a861d62b48be9fd2527fb7d023b114cf05b723cd3858
RemcosRAT
2c1dc96dc237a9928d84e21b289cbfc80570bad1593786745a86829a66ba2705
RemcosRAT
2eb9d2a67aa9761b996f932affd2deab03145b56b96cb9f9ceebfbffc9e866a2
RemcosRAT
6686076964fe6e1599981d06c4c4ced9040a49332bec22ca86b6047ed5e168b4
RemcosRAT
ee556a159fee1cb48604262ca59aa12928567e78523eed65d31727094ff07925
RemcosRAT
+ 1'108 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:ol discovery persistence rat
Link:
https://tria.ge/reports/240805-hhhkmaygqq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
95.214.54.179:2301
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4111f34a-7752-4265-93af-05bc2a6d594d
Unpacked files
SH256 hash:
820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26
MD5 hash:
7092f380213483470295ec380eb16001
SHA1 hash:
a7163e6146678cbff533f11cf7bfc77665eebde1
Detections:
SUSP_OBF_NET_Eazfuscator_String_Encryption_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/18e49ad8-299d-4f6a-b4ea-9cd4d85d59ba/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/820485feb8d8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.97
Link:
https://yomi.yoroi.company/submissions/820485feb8d8b9c13f3f2bc037f7918b0a38526c6f7193f878b2d410572dac26

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: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

File information

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

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 (GUARD_CF)high

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