MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed
SHA3-384 hash: 76349e8dcb9e84a95fd6e45a60a3252f6e10b5eabd02d4e0cc777749b09ca885b8e9c750434354f8d36e3e57a7fdbf30
SHA1 hash: 427da134645ca33fd6db40efd8189213ac36c158
MD5 hash: b78bfe76221d4715daf5c7fe8a6c86d9
humanhash: quebec-comet-delaware-harry
File name:Payment Notification.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:591'712 bytes
First seen:2022-09-05 09:38:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:8S9ZFfR5CwIM58WpzaYHNVQqTLagQr70E8R7:8eFHCwIMezYTTegQTs7
TLSH T1EEC42243C9A05C17D87AAEB6B1D6439346A0910E6AA08F9355CDB13C0E9F38775CB4EF
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 550959654d651945 (37 x Formbook, 28 x AgentTesla, 14 x RemcosRAT)
Reporter 0xToxin
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
287
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Payment Notification.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-05 09:40:11 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/f191856e-3463-4477-9d99-ec7c8c759fb8

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/307797/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/6315c43031a6d28c0ce20ef5/reports/28d6e1f6-2300-4c38-8705-8cacd0990277/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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/858485b4-ed0a-4bae-9a3c-6211a7c019c0
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1065016
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the startup folder
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Performs DNS queries to domains with low reputation
Powershell drops PE file
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 697542 Sample: Payment Notification.pdf.exe Startdate: 05/09/2022 Architecture: WINDOWS Score: 100 36 top.thekillforabuse1.xyz 2->36 38 Multi AV Scanner detection for domain / URL 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 13 other signatures 2->44 8 Payment Notification.pdf.exe 1 2->8         started        11 Syhggfjdjdfstem.exe 1 2->11         started        signatures3 process4 file5 28 C:\Users\...\Payment Notification.pdf.exe.log, ASCII 8->28 dropped 13 powershell.exe 15 8->13         started        17 aspnet_compiler.exe 2 8->17         started        20 powershell.exe 5 11->20         started        22 aspnet_compiler.exe 11->22         started        process6 dnsIp7 30 C:\Users\user\AppData\...\Syhggfjdjdfstem.exe, PE32 13->30 dropped 32 C:\...\Syhggfjdjdfstem.exe:Zone.Identifier, ASCII 13->32 dropped 46 Drops PE files to the startup folder 13->46 48 Powershell drops PE file 13->48 24 conhost.exe 13->24         started        34 top.thekillforabuse1.xyz 195.178.120.12, 49721, 49737, 49766 HEXAGLOBE-ASFR unknown 17->34 50 Performs DNS queries to domains with low reputation 17->50 26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-05 07:39:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 26 (92.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o57lqsf7hsif6cgpsa32wnmhki4apadombf3k7t5uingvanjgdwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/220905-lmlpmaegcl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Remcos
Malware Config
C2 Extraction:
top.thekillforabuse1.xyz:55988
Unpacked files
SH256 hash:
bfa12a2456d40d6c32a1f4e35bd43c81f6f67466234faed8fec19397d0e6d808
MD5 hash:
7a7927bac28be846b2fd2a5d10ba0676
SHA1 hash:
67a7b8616fc8e7aa7bb7a6e2521548e67a7caa2d
Link:
https://www.unpac.me/results/05b988f8-2725-46b8-8914-185f6adbf601/
Parent samples :
fb110b1db7c02725d6cb0953cf153a2b5e158d358db136aece90ac06d79cb07d
80dd6d009a2b7ab7aa393d063048320db5ea3920a4fd9cca4a0a76f12183273f
SH256 hash:
825c4d62d9e732d061e25885660f81e1fe907aadde48049f3d1bf301760e9e6a
MD5 hash:
756b70e6f4bde1fd086b3190c2a60146
SHA1 hash:
4753d81616ca9d26d904a68bfb75c1a6d4d2eddb
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/05b988f8-2725-46b8-8914-185f6adbf601/
Parent samples :
777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed
1a238550d2ebef5de175ac81976c00504f74f935edc10903a3a0b23075c8e77b
f63f0aec05acdc4b6427334d073ead70d53709f1b47970bc04329b10f941cca1
0a6b4d008994bb06574688d817089831fc7404e5e458c38e7a1464d072a8fd7a
b05858be9cfce1e5405b340dd3f80eed01ee77058b9c7af49ca7dd4108f771d1
94dd721db7f8f975f2b8cac62518c42889e86f1b29d47d1400b53bbba950b8ec
0b369a736f1f26563fde964ce5a3e43e6ef527a274ba336b701a7c8c34957541
SH256 hash:
777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed
MD5 hash:
b78bfe76221d4715daf5c7fe8a6c86d9
SHA1 hash:
427da134645ca33fd6db40efd8189213ac36c158
Link:
https://www.unpac.me/results/05b988f8-2725-46b8-8914-185f6adbf601/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/777eb848bf3c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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 777eb848bf3c905f08cf9037ab3587523807806e604bb57e7da21a6a81a930ed

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/307797/

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