MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668
SHA3-384 hash: 5308ec84d7ed122d66dd993ca23b1be2eb0c59cde688dd30ed565cd0fef3eb0aad86aca852eb2ca95ace5a71696535bf
SHA1 hash: e4912bb05d068e6edbe5576a9a929d14590efbe3
MD5 hash: 99b649db223cbef960a8423dd7d50381
humanhash: missouri-failed-oven-mirror
File name:Rfq_products order.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'594'368 bytes
First seen:2022-01-26 09:16:48 UTC
Last seen:2022-01-26 15:58:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:4chMuORP+WInJ8r8W9nIC8w7TE34h3XfKCnWyQB:vhJORP+Bw8WVIcXEIhyCnWyQ
TLSH T1C8757B0A33A41FA8E1795F7ED62B405983F5A027D333F66B3D982DE40923E054F5EA52
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Rfq_products order.exe
Verdict:
Malicious activity
Analysis date:
2022-01-26 09:30:05 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/192e8857-9d48-4538-b8a2-dc1e85a843c9

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/223102/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Running batch commands
Creating a file in the %temp% directory
Launching a process
Creating a file
Creating a file in the %AppData% directory
Creating a process from a recently created file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/61f1119359d130b02a52c2f0/reports/b4882899-0815-4da1-94c8-14b90cd8ea81/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/60c2fc29-1011-49d0-8e68-b15c59b5878e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/928712
Signature
C2 URLs / IPs found in malware configuration
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 an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 561190 Sample: Rfq_products order.exe Startdate: 27/01/2022 Architecture: WINDOWS Score: 100 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 5 other signatures 2->66 9 Rfq_products order.exe 4 2->9         started        process3 file4 46 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->46 dropped 48 C:\Users\user\...\Rfq_products order.exe.log, ASCII 9->48 dropped 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->86 13 cmd.exe 3 9->13         started        17 cmd.exe 1 9->17         started        signatures5 process6 file7 50 C:\Users\user\AppData\Roaming\mssrce.exe, PE32 13->50 dropped 52 C:\Users\user\...\mssrce.exe:Zone.Identifier, ASCII 13->52 dropped 88 Uses ping.exe to sleep 13->88 19 mssrce.exe 5 13->19         started        23 PING.EXE 1 13->23         started        26 conhost.exe 13->26         started        28 PING.EXE 1 13->28         started        90 Uses ping.exe to check the status of other devices and networks 17->90 30 reg.exe 1 1 17->30         started        32 PING.EXE 1 17->32         started        34 conhost.exe 17->34         started        signatures8 process9 dnsIp10 44 C:\Users\user\AppData\Local\Temp\mssrCE.exe, PE32 19->44 dropped 68 Multi AV Scanner detection for dropped file 19->68 70 Machine Learning detection for dropped file 19->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->72 36 AddInProcess32.exe 2 16 19->36         started        40 mssrCE.exe 2 19->40         started        56 192.168.2.1 unknown unknown 23->56 74 Creates an undocumented autostart registry key 30->74 58 127.0.0.1 unknown unknown 32->58 file11 signatures12 process13 dnsIp14 54 janeilla.myddns.me 23.105.131.235, 49822, 9711 LEASEWEB-USA-NYC-11US United States 36->54 76 Contains functionality to steal Chrome passwords or cookies 36->76 78 Contains functionality to inject code into remote processes 36->78 80 Contains functionality to steal Firefox passwords or cookies 36->80 84 2 other signatures 36->84 82 Multi AV Scanner detection for dropped file 40->82 42 mssrCE.exe 40->42         started        signatures15 process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668/
Threat name:
ByteCode-MSIL.Trojan.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2022-01-26 08:41:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
92
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zlyizffjkzzcckvxkmut3n7gzkl45r65ykhm42gzpdzqbcs2mzua._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/220126-k82sasbfb4/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
janeilla.myddns.me:9711
Unpacked files
SH256 hash:
29280c54fe67757045d6669bc2c08731cd231cebcac8ea19d85587c2b0830f1a
MD5 hash:
bdfacd2639e482deb7707b2418efd988
SHA1 hash:
cb948f68e2e10f902d83ed4b0967c394ef88610f
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
c611a6ceb263401ed18ff93961bd6d0cdf8757e48d8e76b13943e85b9d3b5a0b
MD5 hash:
f9b293305bd04eee511c0ffd0e7f29d7
SHA1 hash:
fd981a9537a903422311f582defc1c8fd97248af
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
7d170109f352f251d7ac012882e005b059b0db5ecce7520acf7be2ba8f13792a
MD5 hash:
72403055ee098f50bcc8a238fdbef878
SHA1 hash:
eb5ed9b38f5a23bb00b221acf3f7233aa2e9299d
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
43d696b1d6055b5a6ba9ba85efbc8c5f87959a6737177733726925fd79c88e66
MD5 hash:
92fa1a9c610b58ebf372342bf943b977
SHA1 hash:
be43591344ed2657a5bfa9cc1d276ba688e42386
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
Parent samples :
68c0f9e10a5529d1a3d7031f4364a7e04746db13515041c94ceecf9a706fc671
caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668
SH256 hash:
373ecebfcd740da14d1fa114a15b08af91f4e2a524e1317af07e952c904890f0
MD5 hash:
7d640ef18f4fbb737fdbec6885bb1682
SHA1 hash:
a7197370dd3372c66d2da9b3f851c2801e705b43
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
2d0dc6216f613ac7551a7e70a798c22aee8eb9819428b1357e2b8c73bef905ad
MD5 hash:
0e362e7005823d0bec3719b902ed6d62
SHA1 hash:
590d860b909804349e0cdc2f1662b37bd62f7463
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
e036660b56e1439cf1706f557444222038a1da26190dffe5c27e9ea006cd1708
MD5 hash:
4d1b753a65eda9b108806b70e17f85d0
SHA1 hash:
4018fd3cb7f05868618be82c7498028dd79aab75
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
SH256 hash:
caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668
MD5 hash:
99b649db223cbef960a8423dd7d50381
SHA1 hash:
e4912bb05d068e6edbe5576a9a929d14590efbe3
Link:
https://www.unpac.me/results/fd8382f0-984c-4851-bc21-4b84af68c7da/
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/caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe caf08c94a95672212ab753293db7e6ca97cec7ddc28ece68d978f3008a5a6668

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/223102/

Comments