MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e
SHA3-384 hash: f422a6c9cd984bbaf9bee6ec812a7630c25b36227da3b7a15a879c4674437b3d87e83a74c454e0fe6bc035850ec26874
SHA1 hash: f23d4ec399fa9f5cb781742f8d1d7c451ad2adcf
MD5 hash: 3397e0e3128bb90a1b74c58688f06c3e
humanhash: yankee-five-alpha-north
File name:Shipping Document,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:821'760 bytes
First seen:2021-09-29 12:46:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f0c25cd198950ba1bc931e9bf4f4e5f2 (2 x RemcosRAT, 2 x Formbook, 1 x AveMariaRAT)
ssdeep 24576:C7FJ/5KIXmNwWZsUraU0Qcwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww6:CRKFpZKMVW
Threatray 670 similar samples on MalwareBazaar
TLSH T1A5056C26F1C15CF2E321273C8C17299454AABFB4651C748D69F97E323E792C1683AD8E
File icon (PE):PE icon
dhash icon 3c2c6c9c96cce492 (5 x RemcosRAT, 3 x AveMariaRAT, 3 x Formbook)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Shipping Document,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-29 19:42:49 UTC
Tags:
installer trojan rat remcos keylogger
Link:
https://app.any.run/tasks/a758b65b-f2db-4270-bca7-cd32e6b7b63c

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/193164/
Detection(s):
Win.Trojan.Remcos-9897068-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8b1b1176-fac7-4feb-9b4c-042358e52a4e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/861417
Signature
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
Creates a thread in another existing process (thread injection)
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 493846 Sample: Shipping Document,pdf.exe Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Multi AV Scanner detection for domain / URL 2->73 75 Found malware configuration 2->75 77 7 other signatures 2->77 8 Emixqih.exe 15 2->8         started        12 Shipping Document,pdf.exe 1 22 2->12         started        15 Emixqih.exe 15 2->15         started        process3 dnsIp4 45 sn-files.fe.1drv.com 8->45 55 2 other IPs or domains 8->55 79 Multi AV Scanner detection for dropped file 8->79 81 Writes to foreign memory regions 8->81 83 Creates a thread in another existing process (thread injection) 8->83 17 logagent.exe 8->17         started        47 sn-files.fe.1drv.com 12->47 49 onedrive.live.com 12->49 51 nzewvw.sn.files.1drv.com 12->51 41 C:\Users\Public\Libraries\...mixqih.exe, PE32 12->41 dropped 85 Injects a PE file into a foreign processes 12->85 20 secinit.exe 2 3 12->20         started        23 cmd.exe 1 12->23         started        25 cmd.exe 1 12->25         started        53 sn-files.fe.1drv.com 15->53 57 2 other IPs or domains 15->57 27 secinit.exe 15->27         started        file5 signatures6 process7 dnsIp8 59 Contains functionalty to change the wallpaper 17->59 61 Contains functionality to steal Chrome passwords or cookies 17->61 63 Contains functionality to register a low level keyboard hook 17->63 65 Delayed program exit found 17->65 43 fmunity247.ddns.net 45.133.1.47, 3648, 49761 DEDIPATH-LLCUS Netherlands 20->43 67 Contains functionality to inject code into remote processes 20->67 69 Contains functionality to steal Firefox passwords or cookies 20->69 29 reg.exe 1 23->29         started        31 conhost.exe 23->31         started        33 cmd.exe 1 25->33         started        35 conhost.exe 25->35         started        signatures9 process10 process11 37 conhost.exe 29->37         started        39 conhost.exe 33->39         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 12:47:05 UTC
AV detection:
15 of 45 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ill3kaw6ucodzw4zpbz45yxnz7k77bafs427v5yscepkkvbkazpa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
04f483018f53c35976cfd9c4b5191279761a351b3e135a70ae9c5c2b53be154b
RemcosRAT
15851690d3cb99d95e82bb47d3f31db71688c69dd50b0a8367e97aa3b501b637
RemcosRAT
204806f363e25b8caab19fade1152cbdef6d19a2ee0f122ce2a2aa3949154f1d
RemcosRAT
5f14d3a74387554c330e7ee790f26fb55c5bfeb1dbefc6f2de93ba69d46383e8
RemcosRAT
6a96d22dec9171b154bb1a94c68fa02dda51713709dad161681a759f64cc3014
RemcosRAT
897e01eafce2598ea8af8d75f531b87118872fb82f101aa788fc987fdac0ff62
RemcosRAT
8cb9b0ac073c398ffc0147a1a84ffa9c2db217df67c5a89f34f4a5fb12be7cc3
RemcosRAT
a3d751c0554f2d36ae56987adeca6f9b8f7953fab4a5214ad913a9021fe168fc
RemcosRAT
b0f43b627353f91afa5e4a9c5eea655f5375e497933a6e37c3c0f8a5a29a2889
RemcosRAT
b484a4cb667f840e50d5fe91ed76752a5db90759ed1cac25ec965ce5751da9e2
RemcosRAT
+ 660 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotefm persistence rat
Link:
https://tria.ge/reports/210929-pz7dmsehh5/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
fmunity247.ddns.net:3648
Unpacked files
SH256 hash:
18d5f2bb4c00c8e6fb62f43bc3878c615b600ec26bc25b98204cc2e945cd175a
MD5 hash:
b0d9d156b07f2199b3334fc6564c133d
SHA1 hash:
0c39614273b857121740e0142d1d9809de8bc41b
Link:
https://www.unpac.me/results/3208b577-4ebf-4f85-a802-d196c4a16d40/
Parent samples :
b400601e35e72a20ca4a0fb19af7a93ddeddcd568674232cabb6c1e05ce4fd07
a643235802bd118331000b4a251952815382078dd0aaaded76e4a8890bbac5f6
33b01cf0eb422d872201670e34b732f76c980ae7ccb016068438272ed426a50b
fe6bd626fd98e3c0e4a2c350e5d927398e22e7731e7c2e1f31bc02181735c4e0
a97b00620e1e8ef9ef5c5f922f5b40ecf698504402d3e14979701c330bef7b56
90e1eac40edda005fffadbb1d16c652d16e685f8f4cf7375eb6ac928222c3a1c
1e54beecbd654f17bab2c6f883ea089943d68ae3e49aaea079182173dc203297
a0703367806de16bac9c75c016780c0bf3b1d8c21cf7f51b6a47b6a1aba74999
1ed62fd139d5efe1cb2650f52cf405d615dc19dae62744df9fb364cd1970a4bc
ffb6236e6dd03ba2599326f3d83d2ffabf8ab18902f1865aa0a68f1881e31978
99cdf3421923232c160c5075af3bf8620df65bd59cf99cc341f17a58e1eeb4f2
8f1eefd14608fae865576d9f7a24be116eb9d8dcebf89c954e2e645b06174c4e
f86258665b68d70e83397ac4ef17598c552b994dd13f26b8208c4d40b8e94816
ed78db064dfb4ae791498b2d08410a69bdad684ff709319d179c2383dd8e2f1c
3490cb5fd9a372722f95ed69c41e23d5cd274ce6b3c024ec1731962a380409d6
d86532a631143032da8dd4e4fd86cbaed87777ef2ede4a60377d534cb9ea7271
298d542746dfa4922dd5fbc8fab572be58447c9dbd1481c55bd2254bb275684f
ffb0bd5cf5a1716fa50f01a4b4fd98d396842c7c263d3ce03623748430b30a93
a2067e35b12b83ddae55145931870302de477b5ccce82a5e86ea7bf8e057d8d7
a2539269c2b9200d7baed9f0dfc25b59fd4713a641d79fd9bd13272c7e1296ca
0aff281c192e919ce8a4e2091a058aa3c8fab2379dd50d7dd7ac7217af4dc838
cc8b096d71a4734e17e6f1bcf10d9730e5a2b3ab15b7e89852a4cdd204563d29
1e24e03e9ffdbe39ca8d357d0130aff5c50f2ddd7b2f613ab9dc01f02d0527d3
f60b6dfcaf466a9cf6b7831fcd74abc70efc16aec11d3b38fdbc7562003ba61b
67c445ff181fcaa6b46a1d1af78a9df1ac413593f29561e4fa43059c7ed85ace
SH256 hash:
42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e
MD5 hash:
3397e0e3128bb90a1b74c58688f06c3e
SHA1 hash:
f23d4ec399fa9f5cb781742f8d1d7c451ad2adcf
Link:
https://www.unpac.me/results/3208b577-4ebf-4f85-a802-d196c4a16d40/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/42d7b502dea0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

Malspam

RemcosRAT

Executable exe 42d7b502dea09c3cdb997873cee2edcfd5ff84059735faf712111ea5542a065e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/193164/

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