MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4
SHA3-384 hash: 600f70da7f70a87469ffbcf0fae13a2f9108266b31969a8624eb319a57129e85c7fc5e4949d05112d292c26f0d74104d
SHA1 hash: c09e70e1ee8f38e3ac3d795d1cf2b1a6adbe84fb
MD5 hash: 9463baf89c0816593479fce4912fdbf9
humanhash: crazy-may-massachusetts-grey
File name:PO 20191003.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:651'264 bytes
First seen:2021-02-14 10:34:44 UTC
Last seen:2021-02-17 22:30:38 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 12288:RYa7QD5C5RnFtCG5ru8wAkyCxwHEbnut0GjHv53Hyhkm+1S6F:Rl7QlCznFx5y8w4Cxw90GzBXyh56
Threatray 47 similar samples on MalwareBazaar
TLSH 44D4F10572BC2B5AE5798BF7383214801BBA605FAC6AD1184EC7F0E63AB6F005654F77
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
7
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 20191003.exe
Verdict:
Suspicious activity
Analysis date:
2021-02-14 10:41:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d759d5c7-6fb6-4bf3-9c44-d75047f1226d

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/117066/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42845.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/607555
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
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: 352806 Sample: PO 20191003.exe Startdate: 14/02/2021 Architecture: WINDOWS Score: 100 57 fgtrert.duckdns.orgqweerreww.duckdns.org 2->57 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Detected Remcos RAT 2->77 79 12 other signatures 2->79 14 PO 20191003.exe 3 2->14         started        18 remcos.exe 2 2->18         started        20 remcos.exe 2 2->20         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\PO 20191003.exe.log, ASCII 14->55 dropped 87 Injects a PE file into a foreign processes 14->87 22 PO 20191003.exe 4 5 14->22         started        25 remcos.exe 18->25         started        27 remcos.exe 20->27         started        signatures6 process7 file8 51 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 22->51 dropped 53 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 22->53 dropped 29 wscript.exe 1 22->29         started        process9 process10 31 cmd.exe 1 29->31         started        process11 33 remcos.exe 3 31->33         started        36 conhost.exe 31->36         started        signatures12 71 Detected unpacking (creates a PE file in dynamic memory) 33->71 38 remcos.exe 4 3 33->38         started        process13 dnsIp14 59 fgtrert.duckdns.org 45.145.185.209, 8494 DEDIPATH-LLCUS Netherlands 38->59 61 fgtrert.duckdns.orgqweerreww.duckdns.org 38->61 81 Writes to foreign memory regions 38->81 83 Allocates memory in foreign processes 38->83 85 Injects a PE file into a foreign processes 38->85 42 svchost.exe 38->42         started        signatures15 process16 process17 44 iexplore.exe 42->44         started        process18 46 iexplore.exe 44->46         started        49 iexplore.exe 44->49         started        dnsIp19 63 github.com 140.82.121.4, 443, 49745, 49746 GITHUBUS United States 46->63 65 avatars.githubusercontent.com 185.199.108.133, 443, 49749, 49750 FASTLYUS Netherlands 46->65 67 consentdeliveryfd.azurefd.net 46->67 69 185.199.111.133, 443, 49765, 49766 FASTLYUS Netherlands 49->69
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4/
Threat name:
ByteCode-MSIL.Trojan.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2021-02-14 10:35:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
23 of 48 (47.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bdef5e7gh65ehys2hz57jy6zwr3yhkfm65fhlpu6z375y2gunt2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0aae2bace47fd4233b42b2ee714d5f46a05fc2970928131c28573d9fbd876552
RemcosRAT
2a914a931b749d964e9087d25ec502a25c22118c24e0239e7b9a73af3d4a6779
RemcosRAT
33b25ae8a09b3249f6f5a9971d563933e88d20dca6f2b761c308783e164de492
RemcosRAT
6cf485e9d0c0f8ffbe0c4d8776adfd121f4de33fd73262d642739cc3491cac13
RemcosRAT
719bb30fb8ff3d79fd0216bdbc9f9d1b377c1456a20c8d9a26f1a19e283352ba
RemcosRAT
cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64
RemcosRAT
e759db35e2aa047d055ca4d5d089da667aaa39d443a35601784090382f0d1e2a
RemcosRAT
eddb00e96bcae82158333e9c0a0e0e1cf8002af1f6287fe8a99f5e3d619af2fb
RemcosRAT
f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a
RemcosRAT
fcd247261215a170a1644a7abd0c4003b21a81fb0dbdf928831351905e31388a
RemcosRAT
+ 37 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210214-2hkl6gwz3x/
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
Loads dropped DLL
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
a6df75436df83022d042fcc37476e98a5ac8fa4325d817c46f76c548734bc9af
MD5 hash:
b06675740307256c7028633ea0fceeae
SHA1 hash:
e0dc57e244c9edd7943f468103ca93fa08225bf9
Link:
https://www.unpac.me/results/3c98c212-981c-441f-9621-caf842d528c0/
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
Link:
https://www.unpac.me/results/3c98c212-981c-441f-9621-caf842d528c0/
SH256 hash:
64fedf5c944b67b73eb4d1bf7ac3507e0d1ce8f366c483509e78ffe610da9f16
MD5 hash:
316b0559d226bbbf5fbd6f88aaf8601d
SHA1 hash:
90a33e61e582c9114beb65ad0decea33d0536286
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/3c98c212-981c-441f-9621-caf842d528c0/
SH256 hash:
08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4
MD5 hash:
9463baf89c0816593479fce4912fdbf9
SHA1 hash:
c09e70e1ee8f38e3ac3d795d1cf2b1a6adbe84fb
Link:
https://www.unpac.me/results/3c98c212-981c-441f-9621-caf842d528c0/
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/08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
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

zip 08586936e1ef1224bd3662157edefed60f3e1fc0704734d7a59316f2ba5118d7

RemcosRAT

Executable exe 08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4

(this sample)

  
Dropped by
MD5 59cd35db06dfd29339dcd0577ce48db0
  
Dropped by
SHA256 08586936e1ef1224bd3662157edefed60f3e1fc0704734d7a59316f2ba5118d7
  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/117066/

Comments