MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
SHA3-384 hash: bc9163c3b2c4b6940d70ee38b762a26ff8cefa9ee773329e64625557dd6c3d6429d110cb2078177c164ba776bc80db3c
SHA1 hash: 856c88968d28f38098ee5e8178f86d556293d90d
MD5 hash: fe23547f8db2e56792d230c81ce6743c
humanhash: purple-idaho-item-lactose
File name:fe23547f8db2e56792d230c81ce6743c.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'153'024 bytes
First seen:2023-07-25 17:51:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:rxtKHIcTrGCShlxeUlwfJPAsg7UTAm2D34WhCmD69oe7KNFe:tIHIkrzShCfFAtU8l4WCm4oZ3
Threatray 2'284 similar samples on MalwareBazaar
TLSH T1A535022436B89F97C1BA47F88030623413F9AEAE6536E30D5DC670DB6875F808A61F57
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
266
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
fe23547f8db2e56792d230c81ce6743c.exe
Verdict:
Malicious activity
Analysis date:
2023-07-25 17:56:38 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/65aecb5f-9cb7-4277-b370-9ab36466661a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/432888/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.738.32050.18467.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
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/3ba1b507-b900-40ef-b979-9da55152d98f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1279595
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates autostart registry keys with suspicious names
Delayed program exit found
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1279595 Sample: e9Tb5f6uQR.exe Startdate: 25/07/2023 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 5 other signatures 2->50 8 e9Tb5f6uQR.exe 3 2->8         started        12 remcos.exe 2 2->12         started        14 remcos.exe 2 2->14         started        16 remcos.exe 2 2->16         started        process3 file4 40 C:\Users\user\AppData\...\e9Tb5f6uQR.exe.log, ASCII 8->40 dropped 54 Contains functionality to bypass UAC (CMSTPLUA) 8->54 56 Contains functionality to steal Chrome passwords or cookies 8->56 58 Contains functionality to modify clipboard data 8->58 62 2 other signatures 8->62 18 e9Tb5f6uQR.exe 2 4 8->18         started        22 e9Tb5f6uQR.exe 8->22         started        60 Injects a PE file into a foreign processes 12->60 24 remcos.exe 12->24         started        26 remcos.exe 14->26         started        28 remcos.exe 16->28         started        signatures5 process6 file7 36 C:\ProgramData\Remcos\remcos.exe, PE32 18->36 dropped 38 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 18->38 dropped 52 Creates autostart registry keys with suspicious names 18->52 30 remcos.exe 3 18->30         started        signatures8 process9 signatures10 64 Multi AV Scanner detection for dropped file 30->64 66 Machine Learning detection for dropped file 30->66 68 Injects a PE file into a foreign processes 30->68 33 remcos.exe 3 1 30->33         started        process11 dnsIp12 42 23.106.60.117, 49700, 49701, 49702 LEASEWEB-UK-LON-11GB United Kingdom 33->42
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-07-25 12:47:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
41
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rj3qhj5bh6k6nzmkvqdvw4f4girvlz7wqpqeqjgboqd2dcayhdhq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0e25b5299c3df59e05d296b1478d43094d5d81e1a5b8706fd355b36388244326
RemcosRAT
1c9708a7c1cca2ffb1fb6711828553521a81c313bd3dcefba441e546d2457e5d
RemcosRAT
29cbb0d27bbc787365e8c2aa11205b0218a178eda781bca644f8c77e55ad03c7
RemcosRAT
40495077a292c313a58d5d42004097acf6372f0ab3f7e20c14872e7623edf6a2
RemcosRAT
55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
RemcosRAT
67c7c5ec03b9334d1a132f2b0fd7ddc99515ccdb2372aa3b16463ea34d09f060
RemcosRAT
df906c77d802e4e977ff24b11e1840d6948338250023a27b2b30ad9ac6e3f4ba
RemcosRAT
e970fdbbcd35127388ad909820df33fbe5d0a7bd4b52ccde011c5782edfe03fc
RemcosRAT
f60667b9e2a0a25221cdb47844149beb3b1cd08abbc3360e8684fad9d8aaa20e
RemcosRAT
f82c643baf10986a8ad197d2565b7a093aa1eef8b9d4463f4a42d3cc81a45b8f
RemcosRAT
+ 2'274 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230725-we6d6sef59/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
23.106.60.117:7719
Unpacked files
SH256 hash:
534feaac11f682c4a100c9d715d96849f8c11d67962c9f8d1358bde4b6b0dd21
MD5 hash:
06072f72c8291197533af9245c444b85
SHA1 hash:
d242a8244169fda29baa1bc6c4f61ec9f6b75c1c
Link:
https://www.unpac.me/results/2ff626bf-0c9e-4565-ae0f-8eaee6c3f716/
SH256 hash:
53f2ad060cf771aa4f197df5789cee95959480c244a0b392bb450c8ce7311d77
MD5 hash:
37e82d3e2864e27b34f5fbacaea759c3
SHA1 hash:
a87024a466e052bff09a170bb8c6f374f6c84c32
Link:
https://www.unpac.me/results/2ff626bf-0c9e-4565-ae0f-8eaee6c3f716/
SH256 hash:
4f77f0d0fb6b2c9a6aba91816998c9813e8934ac51d52ebd064a8874ad2b764f
MD5 hash:
cd3305a3e70ea207eb33e473d530832e
SHA1 hash:
9739a45b87db6a54be48e64d173df2591952d1ec
Link:
https://www.unpac.me/results/2ff626bf-0c9e-4565-ae0f-8eaee6c3f716/
SH256 hash:
f68472727705663fe6177c6e075893d6b3d87d16012b5c1b2c02cb8b2c020df4
MD5 hash:
af51fdf6b58aa7ece4bf07bb21d49bdb
SHA1 hash:
2f8f0141230c8a937d55000fc6605be14f6e52e2
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2ff626bf-0c9e-4565-ae0f-8eaee6c3f716/
Parent samples :
8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
4a23b3a3cc728ab547f5f3f5149f70242187b45aefa26c5f5663f8cbabeb2330
SH256 hash:
8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
MD5 hash:
fe23547f8db2e56792d230c81ce6743c
SHA1 hash:
856c88968d28f38098ee5e8178f86d556293d90d
Link:
https://www.unpac.me/results/2ff626bf-0c9e-4565-ae0f-8eaee6c3f716/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8a7703a7a13f/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/8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf

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
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.

Web download

RemcosRAT

Executable exe 8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2684283/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/432888/

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