MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533
SHA3-384 hash: dcc3f87a017c53ee54a03e1e38f744146499c1bb39fadbeb96f2dce8d5e7fde924477ad84a4f189fac1779c265472ff0
SHA1 hash: 99738e4db2d511683ab182af71f5f81910c0f300
MD5 hash: a83ce04c71214b48d3f559a4bc310ed1
humanhash: magnesium-neptune-finch-four
File name:SPT _ORDER 5676-SEPT1521,pdf,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:801'792 bytes
First seen:2021-09-15 10:59:59 UTC
Last seen:2021-09-15 12:07:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 459f402db2809e477a1dda0946703c4f (2 x RemcosRAT, 2 x Formbook, 1 x AveMariaRAT)
ssdeep 24576:e0KXbYUlmM/OwPVPZzKHrCHW2h8DAaTY2kjpPPobRf+0awpxh9aWRZEfhqdrpXeW:eZmMjxVW2h8DAaTY2kjpPPobRf+0awpm
Threatray 633 similar samples on MalwareBazaar
TLSH T17D057C65E2936C38E01F263C4DC66229622CFFC03F1D59628678ED7A6A396597C7C01F
dhash icon fae5d39a443434c4 (2 x RemcosRAT, 2 x Formbook, 1 x AveMariaRAT)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SPT _ORDER 5676-SEPT1521,pdf,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-15 11:00:47 UTC
Tags:
installer
Link:
https://app.any.run/tasks/a5572f71-6ca6-4c61-8078-c7661066aef5

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/188154/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader43.22177.15292.14234.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/617519b89a5a1e91c5d2039b/reports/8fb7510b-e9ed-4dc4-8752-d0172f56bf44/overview
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7abdcfc4-315c-4ecd-b9e8-71756f65af24
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/851330
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
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
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 dropped 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: 483761 Sample: SPT _ORDER 5676-SEPT1521,pd... Startdate: 15/09/2021 Architecture: WINDOWS Score: 100 44 zion6.ddns.net 2->44 72 Malicious sample detected (through community Yara rule) 2->72 74 Detected Remcos RAT 2->74 76 Yara detected Remcos RAT 2->76 78 2 other signatures 2->78 9 Ksdfhzle.exe 15 2->9         started        13 SPT _ORDER 5676-SEPT1521,pdf,pdf.exe 1 21 2->13         started        16 Ksdfhzle.exe 17 2->16         started        signatures3 process4 dnsIp5 50 onedrive.live.com 9->50 60 2 other IPs or domains 9->60 80 Multi AV Scanner detection for dropped file 9->80 82 Writes to foreign memory regions 9->82 84 Allocates memory in foreign processes 9->84 18 logagent.exe 9->18         started        52 onedrive.live.com 13->52 54 gshgfw.dm.files.1drv.com 13->54 56 dm-files.fe.1drv.com 13->56 42 C:\Users\Public\Libraries\Ksdfhzle.exe, PE32 13->42 dropped 86 Creates a thread in another existing process (thread injection) 13->86 88 Injects a PE file into a foreign processes 13->88 21 mobsync.exe 2 13->21         started        24 cmd.exe 1 13->24         started        26 cmd.exe 1 13->26         started        58 onedrive.live.com 16->58 62 2 other IPs or domains 16->62 28 ieinstal.exe 16->28         started        file6 signatures7 process8 dnsIp9 64 Contains functionality to steal Chrome passwords or cookies 18->64 66 Contains functionality to inject code into remote processes 18->66 68 Contains functionality to steal Firefox passwords or cookies 18->68 46 zion6.ddns.net 91.193.75.133, 2815, 49738, 49741 DAVID_CRAIGGG Serbia 21->46 48 192.168.2.1 unknown unknown 21->48 70 Delayed program exit found 21->70 30 reg.exe 1 24->30         started        32 conhost.exe 24->32         started        34 cmd.exe 1 26->34         started        36 conhost.exe 26->36         started        signatures10 process11 process12 38 conhost.exe 30->38         started        40 conhost.exe 34->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-09-15 11:00:07 UTC
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nb72zdvbz7st57myvys3c7ned2egaoumri5nu4p23a32zwl2muzq._file
Verdict:
malicious
Similar samples:
088694f1604e05863dc1fa86b149e97b51485edb9fef622141a9617821330ac6
RemcosRAT
354a2f583f156689b4aa2128405f1cb56b7a5e0fb047a704212f48bc1011a797
RemcosRAT
3e167fe206a19097cd08d00335fc45f98a75cdb4697b3c530773c8803d50d0f9
RemcosRAT
4b6fb9eac1ea52e013bfb4061a1232fe0d145bc9e260df9bd0d76b1a31be78bf
RemcosRAT
6a3aa7d5ab777a2824d7d312dfd49e0b03e30959a9219e7f782860d2d8b9a12c
RemcosRAT
6a96d22dec9171b154bb1a94c68fa02dda51713709dad161681a759f64cc3014
RemcosRAT
6b637314dc7b63dfce69d3efe9b792d8fb2fbb0d9f19ea70aa0ff83ae8dbd495
RemcosRAT
a2856e021b71721e15a64bcd1692b67962ba637c735952c6b1b797f279c0bfb5
RemcosRAT
d414675059a6174a77594d50fd2b6c99ca6519e6371dac4912c91df01f4071f6
RemcosRAT
e2293ae17fbdeb8e626efa388175c1144d82f12efe55990aa658f1c21445c47f
RemcosRAT
+ 623 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:ok man persistence rat
Link:
https://tria.ge/reports/210915-m3zrvsdfbr/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
zion6.ddns.net:2815
Unpacked files
SH256 hash:
519197f521aa39b7a7ab34b4500a304a7329d967115c2e48fe1b6eb201e39af1
MD5 hash:
3da921c9355d01d335cf03159a950030
SHA1 hash:
3be3f4ea8f289a123dcd1f6ac97c6f34a503c9cf
Link:
https://www.unpac.me/results/7d6be724-6b18-4806-9faf-f354c93182c1/
SH256 hash:
687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533
MD5 hash:
a83ce04c71214b48d3f559a4bc310ed1
SHA1 hash:
99738e4db2d511683ab182af71f5f81910c0f300
Link:
https://www.unpac.me/results/7d6be724-6b18-4806-9faf-f354c93182c1/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/687fac8ea1cf/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/687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533

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

File information

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

Malspam

RemcosRAT

Executable exe 687fac8ea1cfe53efd98ae25b17da41e88603a8c8a3ada71fad837acd97a6533

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/188154/

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