MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e
SHA3-384 hash: cb2c7a5144e4784160bd576b2b9907517b3f0ea030d787da3e91d5b262d3e3182fc889dae3ce0a292c22040a1f282c7f
SHA1 hash: 628b2133e6ed21453e058072cffcf2ccf2f794dd
MD5 hash: 671887f69ef34ed7729ca19ca070f70e
humanhash: butter-blue-august-early
File name:Documento lettera di vettura Dhl,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:694'272 bytes
First seen:2021-10-15 12:28:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12666343f95da9cc22c238274d75b6c6 (3 x RemcosRAT, 1 x Formbook, 1 x AveMariaRAT)
ssdeep 12288:0SvSsA2JxPaLrNgLGKXhfLeoZ10VicVp7+SnqyUz:0AdLzPCrNgLfXhaoZuVT/pqyA
Threatray 1'428 similar samples on MalwareBazaar
TLSH T104E49E778BE00B7EC5A76C3EAC274158185B3CB506A5245A3FF9EA1F473B54A3836087
File icon (PE):PE icon
dhash icon fedcbf4d750f4c4c (5 x RemcosRAT, 2 x Formbook, 1 x AveMariaRAT)
Reporter abuse_ch
Tags:DHL exe geo ITA RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
329
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documento lettera di vettura Dhl,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-10-15 12:43:52 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c91ab47f-ce51-4b3e-b002-6c8712ff920e

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/197758/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.24582.27606.26390.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm evasive greyware keylogger
Link:
https://www.filescan.io/uploads/616974109fb4d8593d65ff87/reports/765fb546-a2fe-472d-aee1-65c5f78995b0/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/f0be18cd-8d10-4efb-bb14-a4cac882f1c9
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/871146
Signature
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
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: 503574 Sample: Documento lettera di vettur... Startdate: 15/10/2021 Architecture: WINDOWS Score: 100 44 testoctober235.ddns.net 2->44 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 Detected Remcos RAT 2->66 68 3 other signatures 2->68 9 Documento lettera di vettura Dhl,pdf.exe 1 24 2->9         started        14 Dmaytns.exe 16 2->14         started        16 Dmaytns.exe 16 2->16         started        signatures3 process4 dnsIp5 48 192.168.2.1 unknown unknown 9->48 50 onedrive.live.com 9->50 56 2 other IPs or domains 9->56 42 C:\Users\Public\Libraries\...\Dmaytns.exe, PE32 9->42 dropped 78 Writes to foreign memory regions 9->78 80 Creates a thread in another existing process (thread injection) 9->80 82 Injects a PE file into a foreign processes 9->82 18 DpiScaling.exe 2 3 9->18         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 9->24         started        52 onedrive.live.com 14->52 58 2 other IPs or domains 14->58 26 logagent.exe 14->26         started        54 onedrive.live.com 16->54 60 2 other IPs or domains 16->60 84 Multi AV Scanner detection for dropped file 16->84 28 logagent.exe 16->28         started        file6 signatures7 process8 dnsIp9 46 testoctober235.ddns.net 185.140.53.5, 3234, 49723, 49724 DAVID_CRAIGGG Sweden 18->46 70 Contains functionality to inject code into remote processes 18->70 72 Contains functionality to steal Firefox passwords or cookies 18->72 74 Delayed program exit found 18->74 30 reg.exe 1 22->30         started        32 conhost.exe 22->32         started        34 cmd.exe 1 24->34         started        36 conhost.exe 24->36         started        76 Contains functionality to steal Chrome passwords or cookies 26->76 signatures10 process11 process12 38 conhost.exe 30->38         started        40 conhost.exe 34->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-10-15 12:29:10 UTC
AV detection:
16 of 27 (59.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5sfffvk4zysevr6vtg42ks3kvzm3omre62zxtsnltgnlfjlhocpa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0aa3cc090418e3658f6dbe4276c597a5d07df3dd6c2738277b3ad32a99ee09ad
RemcosRAT
204806f363e25b8caab19fade1152cbdef6d19a2ee0f122ce2a2aa3949154f1d
RemcosRAT
7eb677c1c5c60d34da90cab2b4ea019c500b5c3db6964cc14849dbe2f9f5fa30
RemcosRAT
b400601e35e72a20ca4a0fb19af7a93ddeddcd568674232cabb6c1e05ce4fd07
RemcosRAT
b9384216a5aea20cd398e51c6549bb84d6b252f3fde114010e3cc0c60b1e2b13
RemcosRAT
dc1bb96ddee60e15d3344fc4b0413634a54974ef9e854628157800c9d695f028
RemcosRAT
e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84
RemcosRAT
fba31a212526660d90a18e87db2427d72a328a87b35b5783567af5917423ed60
RemcosRAT
+ 1'418 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remote_test persistence rat
Link:
https://tria.ge/reports/211015-pnxeasahe3/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
testoctober235.ddns.net:3234
Unpacked files
SH256 hash:
b442c8ee81830c52fea734d23e06e69c20c2b9bfe1e40d63ccb914f87057fcdc
MD5 hash:
df88ffb63d0248e61042c6cae3f3af44
SHA1 hash:
291abeefb0563cf93bb73697ff4e5db3916e0b78
Detections:
win_temple_loader_w0
Create hunting rule
Link:
https://www.unpac.me/results/4a03496f-c156-484d-9d9f-4852d591fcfe/
Parent samples :
2df667c2a61c1cc161df7e8e1d7dcf1407a0bc30eb7eaf881c835fecfde5f086
e36594f316d20c3f0fb948a9c12a0190b872265c7ba49ebb4ffab701f38bbdd9
ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e
636abbcfa39fd806176a81b1b72a3d55b6d2c04e32863eb33d1324382c3d79cd
ad424f679f2f0140d5d3297afa4dd1d3e1b82357b68128ab6bc8015495165a66
SH256 hash:
ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e
MD5 hash:
671887f69ef34ed7729ca19ca070f70e
SHA1 hash:
628b2133e6ed21453e058072cffcf2ccf2f794dd
Link:
https://www.unpac.me/results/4a03496f-c156-484d-9d9f-4852d591fcfe/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ec8a52d55cce/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/ec8a52d55cce244ac7d599b9a54b6aae59b73224f6b379c9ab999ab2a567709e

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_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
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.

Cape
Cape
https://www.capesandbox.com/analysis/197758/

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