MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
SHA3-384 hash: 5da633b1d9e7f44668742d39ba0054bd14474d32ee12a0aa96402b4a14568a249172c88ba294ac8942d7328bd205b9bf
SHA1 hash: abd6f2841675755c088b4d70dee090225caa73db
MD5 hash: 60561cff1dee1f6bab79d28ab8a84dc3
humanhash: minnesota-jig-earth-cup
File name:524 KAO – SH 1X40HQ (代用) BOOKING資料如下~ EXWORK 1X40HQ.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'399'296 bytes
First seen:2024-05-22 02:15:19 UTC
Last seen:2024-05-22 03:28:46 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 24576:4Mbni723L73/gXFxoYXpmTvCkV0uf5ZmH1OvAwP0Cwbn:43a3L73ou7vCkCua1RwML
Threatray 4'096 similar samples on MalwareBazaar
TLSH T17455DF8E17C27360C1BF0B355F3642D457B52AA31992E6AD068300E5EE3BB57BE524E3
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) (4504/4/1)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
344
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e.exe
Verdict:
Malicious activity
Analysis date:
2024-05-22 02:16:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7a402c80-1941-412f-9a3f-cae3999f82c9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.24066.7921.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=664d555825570c503d8501a7win7simulatehigh_evasion
Tags:
Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
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:
Malicious
Link:
https://analyze.intezer.com/analyses/475b98a2-271a-41f1-9726-ce10d71705e9
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1445491
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
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
Delayed program exit found
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 domain / URL
Multi AV Scanner detection for submitted file
Queries Google from non browser process on port 80
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 DarkTortilla Crypter
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: 1445491 Sample: 40HQ.scr.exe Startdate: 22/05/2024 Architecture: WINDOWS Score: 100 25 www.google.com 2->25 27 geoplugin.net 2->27 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 11 other signatures 2->47 8 40HQ.scr.exe 15 3 2->8         started        signatures3 process4 dnsIp5 29 www.google.com 216.58.206.68, 49699, 80 GOOGLEUS United States 8->29 49 Writes to foreign memory regions 8->49 51 Allocates memory in foreign processes 8->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->53 55 2 other signatures 8->55 12 AddInProcess32.exe 3 13 8->12         started        signatures6 process7 dnsIp8 31 104.250.180.178, 49713, 49714, 7902 M247GB United States 12->31 33 geoplugin.net 178.237.33.50, 49715, 80 ATOM86-ASATOM86NL Netherlands 12->33 57 Contains functionality to bypass UAC (CMSTPLUA) 12->57 59 Tries to steal Mail credentials (via file registry) 12->59 61 Contains functionalty to change the wallpaper 12->61 63 6 other signatures 12->63 16 AddInProcess32.exe 1 12->16         started        19 AddInProcess32.exe 1 12->19         started        21 AddInProcess32.exe 14 12->21         started        23 2 other processes 12->23 signatures9 process10 signatures11 35 Tries to steal Instant Messenger accounts or passwords 16->35 37 Tries to harvest and steal browser information (history, passwords, etc) 16->37 39 Tries to steal Mail credentials (via file / registry access) 19->39
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wj6m665vk3q7gmwi72z2cl3phrfqxkkjybm43q5bxxkbn64hsipa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1f46d078bfe514f7aeebf7ac92bd226d10335d74702a81059b9d24f5849437e4
RemcosRAT
48e084d0d4c39bfe350c6f5d9aa67d5bf7968b774d890f1e75d2366e886ce78a
RemcosRAT
90aeca3777576bf0d4928c488d1f60752a81cd8fb6050dbb69697116003a5ba5
RemcosRAT
9c6493910b2ebd8fc274c1bd93ca54205f124aa1484aa4d17bbe7bee10cd3ff6
RemcosRAT
a7aca87179f51e229aa9a2f13bb8ab76750c8092579cc7b4d0cbc40235cdde27
RemcosRAT
b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae
RemcosRAT
b89f11149cf87734d5e56b24e4b6a604ba3c10a4bcb5ca6567a9f6c595c6a4ab
RemcosRAT
ff0a84220d028052a841312cd81baa525d19f7e4b0ce94dbbaf6634a776d3814
RemcosRAT
+ 4'086 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Link:
https://tria.ge/reports/240522-cp5e3shc8s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
104.250.180.178:7902
Unpacked files
SH256 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/cfaf2b88-c0b7-4578-834b-bbf4628f491c/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/cfaf2b88-c0b7-4578-834b-bbf4628f491c/
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
Link:
https://www.unpac.me/results/cfaf2b88-c0b7-4578-834b-bbf4628f491c/
SH256 hash:
69dd751153f6ae4f2c008b12bcbf20b1328be9e0bda45f08eb8f32a837f34ba5
MD5 hash:
e47f6f1f5e743fdbf9d6579b96748a2b
SHA1 hash:
21dbce7b186f72c69647fce6aa0b5cf403aa87c4
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/cfaf2b88-c0b7-4578-834b-bbf4628f491c/
Parent samples :
866de3bdc1cc207c818212511641cdf5e6220f304619a26b5e9cb2d2b9c8a309
b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf
69dd751153f6ae4f2c008b12bcbf20b1328be9e0bda45f08eb8f32a837f34ba5
1f350a9bcaccdb51ef9e784c123fb27099be181fcb39f9bac5130c4cedc190b1
SH256 hash:
b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e
MD5 hash:
60561cff1dee1f6bab79d28ab8a84dc3
SHA1 hash:
abd6f2841675755c088b4d70dee090225caa73db
Link:
https://www.unpac.me/results/cfaf2b88-c0b7-4578-834b-bbf4628f491c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e

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 b27ccf7bb556e1f332c8feb3a12f6f3c4b0ba949c059cdc3a1bdd416fb87921e

(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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