MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2. 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


XpertRAT


Vendor detections: 9


Intelligence 9 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
SHA3-384 hash: b47681d2caa6ecec3a13f4de6983c0d2828b6447701eca2fdd0140709b5bd082055730e82c9780185a39725e657133f8
SHA1 hash: 00c52f686027dc00d98b1aad58e074bcfd92f765
MD5 hash: dc2492ebf0fca4a52c41433c0e289750
humanhash: kentucky-delta-sink-beer
File name:dc2492ebf0fca4a52c41433c0e289750.exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:908'288 bytes
First seen:2021-06-29 23:11:31 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:WKT2TuR5Djbvuy5DA46v4/NkjpsHXyD5:1T2sBHvuGkZMz3y1
Threatray 5'207 similar samples on MalwareBazaar
TLSH CE159E4DBCF43683F22B96BD36C960E24275BC1D9B18EDE35D82F3E6056160AA477903
Reporter abuse_ch
Tags:exe XpertRAT


Avatar
abuse_ch
XpertRAT C2:
195.133.40.193:8494

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
195.133.40.193:8494 https://threatfox.abuse.ch/ioc/155916/

Intelligence

File Origin
# of uploads :
1
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dc2492ebf0fca4a52c41433c0e289750.exe
Verdict:
Malicious activity
Analysis date:
2021-06-29 23:14:09 UTC
Tags:
trojan rat xpertrat stealer
Link:
https://app.any.run/tasks/37c3ddec-ef12-47eb-b596-337002d8d3fa

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/168854/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.800-1.UNOFFICIAL
Create hunting rule

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/eaacfbe0-4bff-4aa6-bb35-f8aa2ffe71db
Result
Threat name:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/809718
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Detected unpacking (creates a PE file in dynamic memory)
Disables user account control notifications
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Generic Dropper
Yara detected XpertRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442129 Sample: 5nkaYvd6zC.exe Startdate: 30/06/2021 Architecture: WINDOWS Score: 100 57 Malicious sample detected (through community Yara rule) 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 Yara detected XpertRAT 2->61 63 6 other signatures 2->63 9 5nkaYvd6zC.exe 3 2->9         started        13 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 3 2->13         started        15 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 2 2->15         started        17 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 2 2->17         started        process3 file4 53 C:\Users\user\AppData\...\5nkaYvd6zC.exe.log, ASCII 9->53 dropped 77 Detected unpacking (creates a PE file in dynamic memory) 9->77 79 Injects a PE file into a foreign processes 9->79 19 5nkaYvd6zC.exe 1 1 9->19         started        22 5nkaYvd6zC.exe 9->22         started        24 5nkaYvd6zC.exe 9->24         started        81 Multi AV Scanner detection for dropped file 13->81 83 Machine Learning detection for dropped file 13->83 26 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 13->26         started        28 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 13->28         started        30 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 15->30         started        32 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe 17->32         started        signatures5 process6 signatures7 65 Changes security center settings (notifications, updates, antivirus, firewall) 19->65 67 Disables user account control notifications 19->67 69 Writes to foreign memory regions 19->69 71 2 other signatures 19->71 34 iexplore.exe 3 8 19->34         started        process8 dnsIp9 55 mertrerfeyy.duckdns.org 195.133.40.193, 49729, 49730, 49731 SPD-NETTR Russian Federation 34->55 49 M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe, PE32 34->49 dropped 51 C:\...\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7, data 34->51 dropped 73 Creates an undocumented autostart registry key 34->73 75 Creates autostart registry keys with suspicious names 34->75 39 iexplore.exe 34->39         started        41 iexplore.exe 1 34->41         started        43 iexplore.exe 13 34->43         started        45 3 other processes 34->45 file10 signatures11 process12 process13 47 WerFault.exe 39->47         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-29 21:38:32 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pgve3aopkrk2cjvcw5duaz7tskwmherxb6tk4ctc67q6ajyxoxba._file
Verdict:
unknown
Similar samples:
04b0bed3c67cf8a69f413a4f323055d71e3d0a8fec4a0cd96f3e667541b8e63a
XpertRAT
27901356eb5538b402d917cbae797df863ec26c24f8d3126d0aa90ddd3cc7707
XpertRAT
3c03c5f80df2762d336347192bcb146bd837550b208bab90b0e81d481d7e3506
XpertRAT
57c19a6393af8083c0479541d3e7ae6bf2342dfcebff8ce7263e23d2681beb76
XpertRAT
7bcd31bd41686c32663c7cabf42b18c50399e3b3b4533fc2ff002d9f2e058813
XpertRAT
86a71b90222d2cca00dadf08403fa518224fc6dadc7d3db66a769ae2331ec6aa
XpertRAT
a0dd70b6bb048ea0f1c638b58efd63479e1483760130c3cde1bbce6db75c0b8c
XpertRAT
a5f5fc2f6e2c6e6318be4a81aff84d55ecdaa21e6ef6871c44fa409ebdada7e4
XpertRAT
d24900f8d22bb415668f1f42513ddf6d58a1a44ff8f80b510fb8cb35b095c24f
XpertRAT
d69e20f3df6a35c1e51faef8fca17243fbee2c86d085aaeca466041af0d52c95
XpertRAT
+ 5'197 additional samples on MalwareBazaar
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat evasion persistence rat trojan upx
Link:
https://tria.ge/reports/210629-a3dsncp872/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Program crash
Windows security modification
Adds policy Run key to start application
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
Unpacked files
SH256 hash:
8c04434ad2bfc00f64725702a067638e9840cd48c76c0f7848f6f1130e5af195
MD5 hash:
20ca42153423d29105b5db799b7be804
SHA1 hash:
39cd2dfd9730043fff1b7678e23f521a39797ed5
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
Parent samples :
79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
51297f05449c2fe207a4635e0d1123c137bfdfd97157e09b00af119733952197
SH256 hash:
cf8a8dc38a8b77ca89ae8155bcdd88862283187f8f29d55fa445d63782a4f464
MD5 hash:
148d3f2bbe5e028a32cba3d1e25c52d8
SHA1 hash:
1b56050ee83b76a399a17a2a2325263473b03982
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
SH256 hash:
f3b88c0614672e65208970c3032bb36c248702e725a9d3e8c24c7bbc2d16439f
MD5 hash:
0c399e4697dc4c9328180b8db26159f3
SHA1 hash:
2d0be49ecb8c0a6caecc732a667780d311c5c069
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
SH256 hash:
57ef03b4acfda96630a07f96c46c556aba6379acc555b79bb5c0e5b81d881c8a
MD5 hash:
8ced2f396b52c2474837e014db9b7de1
SHA1 hash:
4f1a275b0df8609c4a7fd5f02933026a2c61d686
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
SH256 hash:
79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
MD5 hash:
dc2492ebf0fca4a52c41433c0e289750
SHA1 hash:
00c52f686027dc00d98b1aad58e074bcfd92f765
Link:
https://www.unpac.me/results/96598ede-acb7-4d16-b7c4-022ca5c1fd23/
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/79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
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:MALWARE_Win_XpertRAT
Create hunting rule
Author:ditekSHen
Description:XpertRAT payload
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_xpertrat_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

XpertRAT

Executable exe 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1150070/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/168854/

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