MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e
SHA3-384 hash: 419358e806f6772d1ea7dbaecc7ed6b05fe9821c38922c746d61a90c6fa1274c16b5908822d41d76da5e56150bc19020
SHA1 hash: 2216c7f4828b81745c0401a5841756dc280548fb
MD5 hash: 3a17bfb7ff8c36c1333e6f418146dbc5
humanhash: angel-maryland-xray-fillet
File name:3a17bfb7ff8c36c1333e6f418146dbc5
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'306'624 bytes
First seen:2023-02-22 14:01:52 UTC
Last seen:2023-02-22 15:44:04 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:KUJ+HlYim8nudl/UgVeyifeLTYoliE+Qn2+Aj+x8EG7UbuwCBe9IExKMa:GGZnUgVeleLTYoNV3Hb3C
Threatray 1'642 similar samples on MalwareBazaar
TLSH T1B155D0B073B054B3F4AB06B5D019238D6EFD70137605E23A9B7BF98196129FB76C6602
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 zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BLXCONFIRMATION.xlsx
Verdict:
Malicious activity
Analysis date:
2023-02-22 12:29:08 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/ec4c1e94-9de9-47c5-a271-bd3f273deeac

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/369074/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Creating a process with a hidden window
Running batch commands
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/63f6205e9dd875fc91274bc0/reports/7fb34bbc-7664-4064-8296-84fd3566145f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e
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/88bcc4a1-11a8-46c3-b475-466089ddf2b1
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1180641
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
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
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
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 813467 Sample: NdFlOWeOTr.exe Startdate: 22/02/2023 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 4 other signatures 2->67 10 NdFlOWeOTr.exe 3 2->10         started        14 trs.exe 2 2->14         started        16 trs.exe 2 2->16         started        18 trs.exe 2->18         started        process3 file4 53 C:\Users\user\AppData\...53dFlOWeOTr.exe.log, ASCII 10->53 dropped 77 Contains functionality to steal Chrome passwords or cookies 10->77 79 Contains functionality to steal Firefox passwords or cookies 10->79 81 Delayed program exit found 10->81 20 NdFlOWeOTr.exe 5 4 10->20         started        24 trs.exe 14->24         started        26 trs.exe 14->26         started        28 trs.exe 16->28         started        30 trs.exe 18->30         started        signatures5 process6 file7 47 C:\Users\user\AppData\Roaming\trs.exe, PE32 20->47 dropped 49 C:\Users\user\...\trs.exe:Zone.Identifier, ASCII 20->49 dropped 51 C:\Users\user\AppData\Local\Temp\hnvz.vbs, data 20->51 dropped 73 Creates autostart registry keys with suspicious names 20->73 32 wscript.exe 1 20->32         started        signatures8 process9 process10 34 cmd.exe 1 32->34         started        process11 36 trs.exe 3 34->36         started        39 conhost.exe 34->39         started        signatures12 69 Multi AV Scanner detection for dropped file 36->69 71 Machine Learning detection for dropped file 36->71 41 trs.exe 2 14 36->41         started        45 trs.exe 36->45         started        process13 dnsIp14 55 craigjonson1.gotdns.ch 194.180.49.19, 2011, 49697 LVLT-10753US Germany 41->55 57 geoplugin.net 178.237.33.50, 49698, 80 ATOM86-ASATOM86NL Netherlands 41->57 59 192.168.2.1 unknown unknown 41->59 75 Installs a global keyboard hook 41->75 signatures15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e/
Threat name:
ByteCode-MSIL.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2023-02-22 13:43:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 25 (84.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ud436h566rv53ztg7ihuozxegxqrlrf7xnyzmkfnbqfvjaxsqrha._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94
RemcosRAT
217a39234802caa4d7cce0bfae3880db5c6b5c3004fddcd0b31298b586f54de5
RemcosRAT
56661b9e180b6ee75e933cb57222552d55bfb59f4b408feea3b51ee9bcf2bc93
RemcosRAT
6e7342a71d1839f461df4027f3e01bdc607bf16605900d41167631805b598d8c
RemcosRAT
a517027dcf36e8c7d3d029083e39f180b8bcd718c84c108338b00eadb43e918a
RemcosRAT
aefce2215c6d2f0653119ad36953fe2dd9de3d6ab03670b68c14adc8921c9d94
RemcosRAT
c4cd277e81aec420cdf23a0d5ebff50b0d64dd9c6b3b1942567c263032f64deb
RemcosRAT
c9c3286b15a454a72205e4fb6af2e73d26d7cf0754f16ba1ca5ecbac1452952e
RemcosRAT
d02d7e2e26146f8e427beb6b841da4988c4b8a6b1c981ad734cbc9bab44ee068
RemcosRAT
+ 1'632 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:eric-host 2023 persistence rat
Link:
https://tria.ge/reports/230222-rb4zqaca32/
Behaviour
Modifies registry class
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
craigjonson1.gotdns.ch:2011
Unpacked files
SH256 hash:
6f8a2e11e667b022659758c100e536a328b69a7c86cbc40b6a22e47afa8fa0ec
MD5 hash:
b2acd8d450172f0163bf005222af8358
SHA1 hash:
ddc936134e7f644b8e1dbce5959ece2b16a6426e
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
SH256 hash:
d74a6d8c6593640856671b3e2b7959f8fa054f8aa7c4f30e1aa7ea623d72fa71
MD5 hash:
b7c0bc3cc1c77373e88a8a5ee94e61f8
SHA1 hash:
bccedfeb7e85d012d347509f425065bb1d00ca9f
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
SH256 hash:
a3c190413d60ac514112a950a0ddb701b5be4fdfcfa6b79c38e3483383f1abe4
MD5 hash:
1724076487c2e837fecc909dc2e9d0a6
SHA1 hash:
33c1077b9a8504807adaf428ac575f06f0402356
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
Parent samples :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 hash:
8f0c7e3047346b8d6477ff6d4639fd6157602c7ebc840f3432b99263f1cb415c
MD5 hash:
e5b073b30db1b058298f5df032164e4d
SHA1 hash:
15d3ada4e7ac01b766615b9b66785e7e2ae9b0ca
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
SH256 hash:
f11ca8a4ea5b7a7c2b982020fec273ab6246b75ad4c9e45fbd475eb0a1350c17
MD5 hash:
2a0a9f880a5fc4e16971fc0752b0854c
SHA1 hash:
84952dbf095679f3d5da366c6ef99f13136bb4c5
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
SH256 hash:
a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e
MD5 hash:
3a17bfb7ff8c36c1333e6f418146dbc5
SHA1 hash:
2216c7f4828b81745c0401a5841756dc280548fb
Link:
https://www.unpac.me/results/a84f86e1-0f73-4e1e-96c1-a18dbd803eb3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a0f9bf1fbef4/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/a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e

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 a0f9bf1fbef46bdde666fa0f4766e435e115c4bfbb719628ad0c0b5482f2844e

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2548776/
Cape
Cape
https://www.capesandbox.com/analysis/369074/

Comments


Avatar
zbet commented on 2023-02-22 14:01:54 UTC

url : hxxp://109.206.240.64/EFD.exe