MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49
SHA3-384 hash: 4e3035013f62a4a242f1945fc7323c46371c430759004330778be454234733eb8c805fe0b74578b3faa2116a283a81cd
SHA1 hash: ee1828b45d15e20ea591d95886e8c872c46da094
MD5 hash: ee28df351aa1fc3a99678f0cc3649d7b
humanhash: jersey-lion-edward-blossom
File name:XBB.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:310'272 bytes
First seen:2021-10-19 13:33:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:hZpvDXGJUpRZxptppTboYW6JHYNXlxoZ3ICJY:hfTGCpPxptPXWdlxeIZ
Threatray 2'157 similar samples on MalwareBazaar
TLSH T11F64D00572698F22D9A557F94038929307726D278071E28B5ED0BDCB3EBCF838569F1B
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198511/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.17696.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616ec94c9a5a1e91c5c676d9/reports/6a63158c-0c09-405f-b2af-d9d7e624c9e3/overview
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/61e8baed-086c-4f78-abcc-8c13b8970231
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/873144
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 505572 Sample: XBB.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 8 other signatures 2->57 9 XBB.exe 3 2->9         started        13 nnjk.exe 2 2->13         started        15 nnjk.exe 2 2->15         started        process3 file4 45 C:\Users\user\AppData\Local\...\XBB.exe.log, ASCII 9->45 dropped 61 Contains functionality to detect virtual machines (IN, VMware) 9->61 63 Contains functionality to steal Chrome passwords or cookies 9->63 65 Contains functionality to capture and log keystrokes 9->65 69 2 other signatures 9->69 17 XBB.exe 1 4 9->17         started        67 Injects a PE file into a foreign processes 13->67 20 nnjk.exe 13->20         started        22 nnjk.exe 13->22         started        24 nnjk.exe 15->24         started        signatures5 process6 file7 41 C:\Users\user\AppData\Roaming\nnjk.exe, PE32 17->41 dropped 43 C:\Users\user\...\nnjk.exe:Zone.Identifier, ASCII 17->43 dropped 26 cmd.exe 1 17->26         started        process8 signatures9 71 Uses ping.exe to sleep 26->71 73 Uses ping.exe to check the status of other devices and networks 26->73 29 nnjk.exe 3 26->29         started        32 PING.EXE 1 26->32         started        35 conhost.exe 26->35         started        process10 dnsIp11 75 Multi AV Scanner detection for dropped file 29->75 77 Machine Learning detection for dropped file 29->77 79 Injects a PE file into a foreign processes 29->79 37 nnjk.exe 1 1 29->37         started        47 127.0.0.1 unknown unknown 32->47 signatures12 process13 dnsIp14 49 xp19.ddns.net 136.144.41.133, 1996, 49767 WORLDSTREAMNL Netherlands 37->49 59 Installs a global keyboard hook 37->59 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-18 14:14:29 UTC
AV detection:
24 of 45 (53.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cwpkuym47xhinxzis67emb7pblaysf6xk2cbc4kyi7knrkj73neq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4c11b7fb217b3675e60d659ce0a2c3eee1bdbd3e3ddba1ad6d762878f62534d1
RemcosRAT
5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
RemcosRAT
5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
RemcosRAT
885e34ff7befbdcdb027a017843cbacdba7eebb34d3df2e3113cceb9adafe8b5
RemcosRAT
ac7d008a3ac44bc8dfe3edbbc8542ed5b51bcf911b67eb8e9a715ebb5250ad27
RemcosRAT
ce4962d3126223b4bd68704159cbdc7479fb2df4263fb9f3d57492e770b74a94
RemcosRAT
d2a1375e9e0c3c8fbc3496cb6c1690e2c47d167a5cac476b528ad2c051f85a52
RemcosRAT
ed3a96630761ee25131c40b747f50fc55aa85d5e8f631f71bbfc901dd96bac13
RemcosRAT
eeddb4eb1252a45f5a8246d68dc6557f3e0c6f264a0a6f42e81d041c53864a48
RemcosRAT
ff91b720363ded7601beba0c3b9f73c4cd677c79e88f9b82113073d0691df7a9
RemcosRAT
+ 2'147 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:host persistence rat
Link:
https://tria.ge/reports/211019-qvq2jafhc7/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
xp19.ddns.net:1996
Unpacked files
SH256 hash:
f26f875ed3423144ef29c27da8d68ba37cd43f1c8035ba9ad3ecf222a7a98d75
MD5 hash:
c0b8b53a2f0195f74b3293ca56f0875f
SHA1 hash:
f924ca6ea669f803b50cd7f01cd5ccc5f5d48797
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/ead32236-4499-490d-8abb-8f2c2cac2aea/
Parent samples :
159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49
ab7afaef1907cf72be47573572c6836923a3f336fa4d9607c00080f4241cbeb3
baea1e30a52ec0ae882f09ea035829dc1a68a65495e0ad953a5235d3a448f19e
SH256 hash:
983b3fcd484d0e6550c2d9f5673b44802f609b556418e7bcf18ccaf4d6a20616
MD5 hash:
26ce1a725e1b6506d49a976710f04dea
SHA1 hash:
af759d249634cda242564e8ffee415c4600f6715
Link:
https://www.unpac.me/results/ead32236-4499-490d-8abb-8f2c2cac2aea/
SH256 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
Link:
https://www.unpac.me/results/ead32236-4499-490d-8abb-8f2c2cac2aea/
SH256 hash:
159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49
MD5 hash:
ee28df351aa1fc3a99678f0cc3649d7b
SHA1 hash:
ee1828b45d15e20ea591d95886e8c872c46da094
Link:
https://www.unpac.me/results/ead32236-4499-490d-8abb-8f2c2cac2aea/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/159eaa619cfdce86df2897be4607ef0ac18917d7568411715847d4d8a93fdb49

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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/198511/

Comments