MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
SHA3-384 hash: d42c8b38f1e34132748fcb900a86883c084ffc847a5255d04a7c6e60e6515a2d063bd9db24c54a022fc928be7e86b712
SHA1 hash: f323ed87ec56739f0a28da3f066a28ad7d6bb88a
MD5 hash: 8e89d0b28776c196dd170c5c75314d77
humanhash: south-cup-uranus-quebec
File name:10072024085940-0001 - HBL# LMSIN2407028 (by SEA) PO# 4500577338, by 1x40' HQ.pdf.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'016'832 bytes
First seen:2024-07-17 12:57:16 UTC
Last seen:2024-07-24 14:19:41 UTC
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:+qqGExrDUpcTvCkV0uf5ZmH1Ova5PChCwb:/7EFFvCkCua1v5s
Threatray 4'280 similar samples on MalwareBazaar
TLSH T1BA25F11F1ADA54A4D1EE4E74E7B841A883F0B71B5852F3BB128442F4DE6631E7412AF3
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)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
363
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.75.12287.23055.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6697bfdbda4062e29ae8a46b
Tags:
Generic Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
expand lolbin masquerade vbnet
Link:
https://www.filescan.io/uploads/6697bfdf3d7227f937943ba0/reports/e0ec69b1-43df-462f-ad40-817d502a66ae/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/25da6e8d-0c8b-4c68-81f7-1f12de6de278
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475014
Signature
AI detected suspicious sample
Allocates memory in foreign processes
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
Delayed program exit found
Drops executable to a common third party application directory
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1475014 Sample: 10072024085940-0001 - HBL# ... Startdate: 17/07/2024 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 9 other signatures 2->42 8 10072024085940-0001 - HBL# LMSIN2407028 (by SEA) PO# 4500577338, by 1x40' HQ.pdf.scr.exe 3 2->8         started        12 Adobe.exe 1 2->12         started        14 Adobe.exe 1 2->14         started        16 Adobe.exe 1 2->16         started        process3 file4 34 10072024085940-000... HQ.pdf.scr.exe.log, ASCII 8->34 dropped 52 Writes to foreign memory regions 8->52 54 Allocates memory in foreign processes 8->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->56 58 Injects a PE file into a foreign processes 8->58 18 AddInProcess32.exe 2 3 8->18         started        22 conhost.exe 12->22         started        24 conhost.exe 14->24         started        26 conhost.exe 16->26         started        signatures5 process6 file7 32 C:\ProgramData\Adobe\Adobe.exe, PE32 18->32 dropped 44 Contains functionality to bypass UAC (CMSTPLUA) 18->44 46 Contains functionalty to change the wallpaper 18->46 48 Creates autostart registry keys with suspicious names 18->48 50 5 other signatures 18->50 28 Adobe.exe 2 18->28         started        signatures8 process9 process10 30 conhost.exe 28->30         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-07-16 12:11:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kjggg6jvca5nibpgsh6wkkiq7uwxvk3egneidcrqxbxoetz6ocya._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
470fcfd9431f3542f2d2f1fdea50ac81da0b826bc63bdedc262322100e1ef72a
RemcosRAT
524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
RemcosRAT
90aeca3777576bf0d4928c488d1f60752a81cd8fb6050dbb69697116003a5ba5
RemcosRAT
9c6493910b2ebd8fc274c1bd93ca54205f124aa1484aa4d17bbe7bee10cd3ff6
RemcosRAT
b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae
RemcosRAT
b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
RemcosRAT
b89f11149cf87734d5e56b24e4b6a604ba3c10a4bcb5ca6567a9f6c595c6a4ab
RemcosRAT
+ 4'270 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/240717-p7gsysvcpc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
104.250.180.178:7902
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f97ef189-9554-4b87-8b4c-782b1c981d91
Unpacked files
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/d9490f92-7da4-412a-a4ea-46425f89a27e/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/d9490f92-7da4-412a-a4ea-46425f89a27e/
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
Link:
https://www.unpac.me/results/d9490f92-7da4-412a-a4ea-46425f89a27e/
SH256 hash:
5f54f1bec9ba28b84b92478b3db46235c07fa7b4fb106111dd68e4af94afcea3
MD5 hash:
e3f85d3db1a13a521b6dd6477298f9c5
SHA1 hash:
3f40142ffa5a2093a864446af3b80e0fb03f3bfd
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/d9490f92-7da4-412a-a4ea-46425f89a27e/
Parent samples :
aa5728008a7a4b1173fc74eb5e41666688baddefbb2d5214d46cd6815646b5f3
9b9ba6e3df79c2acd5ecdb46d3fb5f4828bcad17b899841fda48bef82f7ab1a1
70ee8c0d07ceccded841b84da618617ffade6266373de9470d14c27a67042ea6
524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4
1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787
6b21cf5ebc20615576167925b27adad49dd095dbca80a7a47101fa824295057c
d3ab0c4ddfbdbce6b1f200436de1c9d1f94567b06a420dc453d02460452cebca
79b1315cab839553008486cf182981ce0a36c1755a83e37f7b107cdb7266f0cb
5e3a1a463e8db9ecffcce81fcd53169562dc8dc0e8974e09376639aaef0e61ae
9c1dd67562324157ceab4d8e050c84150afc6ddff6aec72206ab437c31aac7bb
d99f687b6e744e9d9bdff2e59c273c85deff48dbaa52bf2d64009fd5ec4907ab
ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255
2c5f8cf6008b32d8845093b44852f6fbd1c2be8ec1ae5fa4e01e8d81d7e42929
5f54f1bec9ba28b84b92478b3db46235c07fa7b4fb106111dd68e4af94afcea3
7a9e36961ab5b2ab759ec2196d40618b1f43c5a04c40c01b31cfb4ea1adfc347
c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0
b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c
0ffd61040c88e3beb1cd998b777cbbe118f52daa4eb2759cd9329de5d7f2adc4
769cba836f991b58e8f70ebecb20c4e34fc5e1d1fc7c031b8fc704f43676d83a
21b895bddca92e3443bf32f96d3c2c740be863944ed1c78a41a7caf36ea8f2a7
SH256 hash:
524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0
MD5 hash:
8e89d0b28776c196dd170c5c75314d77
SHA1 hash:
f323ed87ec56739f0a28da3f066a28ad7d6bb88a
Link:
https://www.unpac.me/results/d9490f92-7da4-412a-a4ea-46425f89a27e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0

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: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.

Malspam

RemcosRAT

Executable exe 524c637935103ad405e691fd652910fd2d7aab643348818a30b86ee24f3e70b0

(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 (GUARD_CF)high

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