MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28
SHA3-384 hash: 46eec1cca0b574a05ed2812691de995e80f945f5f7368c450fd44dab70ca3129388f54a30aeb05ec89f7d1ba5abcfc4e
SHA1 hash: fae0a0acbf6e174b22d3fe0ff6cfe332a462b33b
MD5 hash: 0e5c23d14dc6448fff9ee7fe356cee81
humanhash: mockingbird-oranges-blue-moon
File name:0e5c23d14dc6448fff9ee7fe356cee81.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'008'640 bytes
First seen:2022-06-19 17:27:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:5u8dfnNzUYrrqer1CSlz0LAfD1L4H0MW/Ibxgl5nEosPQ3O:EOxBrrf19z0LAL1L4UM9ylSosPQ3
Threatray 2'835 similar samples on MalwareBazaar
TLSH T14C25AF4A63C89D8EDCD6573A81F30EE0921193339C1FA34B8650797F432B5CABE6159B
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon eaa98b5c243d8ab6 (4 x AZORult, 3 x RemcosRAT, 2 x XFilesStealer)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
311
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/281327/
Detection(s):
Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Win.Trojan.EmbeddedReversedDLL-9940922-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62af5ca87046ab63f87e7984/reports/c8116e4c-c1fd-464d-823a-8ecb152b284d/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a0113d0-f569-4d7c-bd28-1e92e23bb0cc
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.rans.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1015952
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Encrypted powershell cmdline option found
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
Potential dropper URLs found in powershell memory
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 648448 Sample: zk6ZBXX1Ly.exe Startdate: 19/06/2022 Architecture: WINDOWS Score: 100 40 tuekisaa.ac.ug 2->40 42 parthaha.ac.ug 2->42 44 5 other IPs or domains 2->44 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 8 other signatures 2->60 8 zk6ZBXX1Ly.exe 1 4 2->8         started        12 winost.exe 1 2->12         started        14 winost.exe 2->14         started        signatures3 process4 file5 32 C:\Users\user\AppData\Roaming\winost.exe, PE32 8->32 dropped 34 C:\Users\user\...\winost.exe:Zone.Identifier, ASCII 8->34 dropped 36 C:\Users\user\AppData\...\zk6ZBXX1Ly.exe.log, ASCII 8->36 dropped 62 Encrypted powershell cmdline option found 8->62 64 Writes to foreign memory regions 8->64 66 Injects a PE file into a foreign processes 8->66 16 MSBuild.exe 2 3 8->16         started        20 powershell.exe 24 8->20         started        68 Antivirus detection for dropped file 12->68 70 Multi AV Scanner detection for dropped file 12->70 72 Machine Learning detection for dropped file 12->72 22 MSBuild.exe 12->22         started        24 MSBuild.exe 12->24         started        26 MSBuild.exe 14->26         started        28 MSBuild.exe 14->28         started        signatures6 process7 dnsIp8 38 nikahuve.ac.ug 194.5.98.107, 49747, 49751, 49755 DANILENKODE Netherlands 16->38 46 Contains functionalty to change the wallpaper 16->46 48 Contains functionality to steal Chrome passwords or cookies 16->48 50 Contains functionality to inject code into remote processes 16->50 52 4 other signatures 16->52 30 conhost.exe 20->30         started        signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-06-19 17:28:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ueeyq46jigcm6jhn2jgdra7uxzjcerlv3i2paru22ssslscs54ua._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0639a34ed8b8a0702daec2d05da6afdd33c6c41dc2bb9cb2537c247825843adf
RemcosRAT
1e3d5369ea28851f7013099f82d535b12e3e88c72ae190fdf571fb9beb9e0ace
RemcosRAT
5f37b5f63e3badceb3ea40bb2a6cef92e466410bebbf6864d6d4b5100b6114eb
RemcosRAT
9ea26ea3cf4034580c0c02f1ce4627887fd5a68e069a2c4189c8f253b5919842
RemcosRAT
c208cb83639f1b0a5bac59a310c377fb31f7d7dae0084f557461b8d4312c81a6
RemcosRAT
+ 2'825 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:06192022 persistence rat
Link:
https://tria.ge/reports/220619-v1zcbahhd8/
Behaviour
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
Remcos
Malware Config
C2 Extraction:
nikahuve.ac.ug:6968
kalskala.ac.ug:6968
tuekisaa.ac.ug:6968
parthaha.ac.ug:6968
Unpacked files
SH256 hash:
9a61e4ba63276a8eb035e603058cb8ee1cb456ff04e386b9f46dd50f7299e36f
MD5 hash:
2546839a6ea50c9432f006ee1eaa78aa
SHA1 hash:
b908faeba0f2273a7ae15cc7b983e7d53a4d731f
Link:
https://www.unpac.me/results/d9e5a82c-3ceb-46ae-9a44-b360aadf016b/
SH256 hash:
e73a30ffb8a5d5336c2c4a835cc19c4c8218b9f4ff6d9cdce401cbc1588a5530
MD5 hash:
8349487a92c07d77e9cef262b651a375
SHA1 hash:
51b5408b0321ac474e4b968ae595f7998742611a
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d9e5a82c-3ceb-46ae-9a44-b360aadf016b/
Parent samples :
a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28
5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b
SH256 hash:
eb28b413d62b757d8fd66b023511a413eb57eee337d988e1b119222ae4cda61e
MD5 hash:
05980ce60bdf544e3a08e51260dede6f
SHA1 hash:
1d6810a03daba699f44e71117a73906a1a1552b0
Link:
https://www.unpac.me/results/d9e5a82c-3ceb-46ae-9a44-b360aadf016b/
SH256 hash:
a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28
MD5 hash:
0e5c23d14dc6448fff9ee7fe356cee81
SHA1 hash:
fae0a0acbf6e174b22d3fe0ff6cfe332a462b33b
Link:
https://www.unpac.me/results/d9e5a82c-3ceb-46ae-9a44-b360aadf016b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1098873c941/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/a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Web download

RemcosRAT

Executable exe a1098873c94184cf24edd24c3883f4be52224575da34f0469ad4a525c852ef28

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2244880/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/281327/

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