MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30
SHA3-384 hash: 762056f7e2ab4e755e2f1341e63e9d5be3cc74b90ed722c2903bddde4c48db46521d52620bcd559ede442c340ed5af6a
SHA1 hash: fcfca4924aa1e95f924df0d4408aa033c9add7f2
MD5 hash: 58983d5e9648f6adf63a8505194b7744
humanhash: comet-fillet-thirteen-october
File name:Acil RFQ_AP65425652_032421,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:711'168 bytes
First seen:2021-08-26 12:11:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 34279dc80317d1d92e4cc4f07cdb3a94 (1 x RemcosRAT, 1 x Formbook)
ssdeep 12288:OlaDZ6+Eis2xF7S3/6nYpH5hQVsqjGhH/LGE9HhbO:OsD8GxF4FpHPYj+HTGEVVO
Threatray 493 similar samples on MalwareBazaar
TLSH T185E45D16E0A0453FE0E5123A5C5777E8DC79FD513C28D6D2A3EA7E089F39AA03921397
dhash icon f8e88ea482a8a888 (8 x RemcosRAT, 1 x AveMariaRAT, 1 x Formbook)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Acil RFQ_AP65425652_032421,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-26 12:24:16 UTC
Tags:
installer
Link:
https://app.any.run/tasks/77552c57-71d8-498b-8ba1-20e7f576ab8b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/182599/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Unauthorized injection to a system process
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/22e22299-3faf-4291-9163-309a72909621
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/839972
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
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
Creates a thread in another existing process (thread injection)
Delayed program exit found
Detected Remcos RAT
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 472399 Sample: Acil RFQ_AP65425652_032421,... Startdate: 26/08/2021 Architecture: WINDOWS Score: 100 40 newlogs.ddns.net 2->40 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 6 other signatures 2->56 9 Acil RFQ_AP65425652_032421,pdf.exe 1 22 2->9         started        14 Biowram.exe 2->14         started        16 Biowram.exe 2->16         started        signatures3 process4 dnsIp5 44 onedrive.live.com 9->44 46 dm-files.fe.1drv.com 9->46 48 32wifw.dm.files.1drv.com 9->48 38 C:\Users\Public\Libraries\...\Biowram.exe, PE32 9->38 dropped 68 Writes to foreign memory regions 9->68 70 Creates a thread in another existing process (thread injection) 9->70 72 Injects a PE file into a foreign processes 9->72 18 dialer.exe 2 9->18         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 9->24         started        74 Multi AV Scanner detection for dropped file 14->74 76 Machine Learning detection for dropped file 14->76 file6 signatures7 process8 dnsIp9 42 newlogs.ddns.net 185.140.53.11, 49752, 49753, 49754 DAVID_CRAIGGG Sweden 18->42 58 Contains functionality to steal Chrome passwords or cookies 18->58 60 Contains functionality to capture and log keystrokes 18->60 62 Contains functionality to inject code into remote processes 18->62 66 3 other signatures 18->66 26 reg.exe 1 22->26         started        28 conhost.exe 22->28         started        30 cmd.exe 1 24->30         started        32 conhost.exe 24->32         started        signatures10 64 Uses dynamic DNS services 42->64 process11 process12 34 conhost.exe 26->34         started        36 conhost.exe 30->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-08-26 12:12:07 UTC
AV detection:
16 of 40 (40.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xpfuohf4i43m26ymcc6q6ss6qw6dw2rmytu2fec42u2mtp2edyya._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
42ef2a340b9b5ec88d5ab83584f07ecc76e7b3842640aecd328ad9d85ad745e8
RemcosRAT
46131c5f93779a7547011c983be113cbf561fee1f4cba59ce8dd8f0bfb4a48f7
RemcosRAT
610aec487270d875f4c6a5fb4f128d636f817a36e40dc4db55c52505258d785f
RemcosRAT
86da76aaa93035696752329676cc619cb00d99fbf38857a56b087fa27f80c028
RemcosRAT
896d2dc1eab72419ab524333d3fba88c8ddf92b087f1c9af5d6ea402b0c77d89
RemcosRAT
941d7828d89da175afca52906a1e519707a09685f30332937917505fa8999f87
RemcosRAT
b782581b1ca3da09fdf3ecbb173ee3ca1f313f5f325f407df976601cad8ce839
RemcosRAT
f8d06c20dc2af83af29551f384bbde4e5380911d8db0f9e56ca549bb5995d413
RemcosRAT
fb120a4aefe9444c5322237d02fdf2a73de09087f31a3216f7bb4f2c14bb876c
RemcosRAT
fb42713cea74ad7a0d4579b86d6c213b25b1f8594019787da3f2152e436fd8fd
RemcosRAT
+ 483 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:jboy persistence rat
Link:
https://tria.ge/reports/210826-s1n8hzvjyn/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
newlogs.ddns.net:6565
Unpacked files
SH256 hash:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
Link:
https://www.unpac.me/results/b6c27159-4187-4566-bdd8-c866920dc978/
SH256 hash:
bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30
MD5 hash:
58983d5e9648f6adf63a8505194b7744
SHA1 hash:
fcfca4924aa1e95f924df0d4408aa033c9add7f2
Link:
https://www.unpac.me/results/b6c27159-4187-4566-bdd8-c866920dc978/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/bbcb471cbc47/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/bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30

File information

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

Malspam

RemcosRAT

Executable exe bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/182599/

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