MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b
SHA3-384 hash: 5cd784230760fdebd6b15da1549d85f6fb0a07c957f432cca834b8feb174cb165380148a93b4ed50ef0579f290bcd987
SHA1 hash: 90326a8d96ea3878ef4acafd12847f719ba141cd
MD5 hash: d095a956c7c94b27bdb21ebded88207d
humanhash: early-hydrogen-mike-mirror
File name:SMH-20211015-Request For Quote 100967-SPN.pdf (56KB).exe
Download: download sample
Signature XpertRAT
Create hunting rule
File size:738'304 bytes
First seen:2021-11-17 20:56:36 UTC
Last seen:2021-11-22 22:27:09 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:kRWzQhI7iUC8WJ92qSgTLPNOATFH4erqvCdouYxNhi5V1APKODvE71r:/HW2qSgPnTFH4e2vCdHgOVLOvgr
TLSH T118F4AE6627E45E6ED0AE03BCE0A4041893F4F5116347E71F1FD1E1B81CA73A2CD696A7
Reporter TeamDreier
Tags:exe XpertRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SMH-20211015-Request For Quote 100967-SPN.pdf (56KB).exe
Verdict:
Malicious activity
Analysis date:
2021-11-15 05:18:30 UTC
Tags:
trojan rat xpertrat stealer
Link:
https://app.any.run/tasks/403e6144-07cc-4c78-90b8-286877581341

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/206997/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.42063.29272.30630.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61956ca14912a8c920a1d05f/reports/e6b09d30-3761-40e6-a64e-c3e27fa9841b/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/23ea8f03-4440-476a-8a0e-b310c99f8380
Result
Threat name:
XpertRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/891539
Signature
.NET source code contains potential unpacker
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Deletes itself after installation
Detected unpacking (creates a PE file in dynamic memory)
Disables user account control notifications
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 524010 Sample: SMH-20211015-Request For Qu... Startdate: 17/11/2021 Architecture: WINDOWS Score: 100 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 Detected unpacking (creates a PE file in dynamic memory) 2->59 61 7 other signatures 2->61 8 SMH-20211015-Request For Quote 100967-SPN.pdf (56KB).exe 3 2->8         started        12 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 2 2->12         started        14 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 3 2->14         started        16 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 2 2->16         started        process3 file4 47 SMH-20211015-Reque....pdf (56KB).exe.log, ASCII 8->47 dropped 69 Injects a PE file into a foreign processes 8->69 18 SMH-20211015-Request For Quote 100967-SPN.pdf (56KB).exe 1 1 8->18         started        71 Multi AV Scanner detection for dropped file 12->71 73 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->73 21 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 12->21         started        23 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 14->23         started        25 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe 16->25         started        signatures5 process6 signatures7 63 Changes security center settings (notifications, updates, antivirus, firewall) 18->63 65 Disables user account control notifications 18->65 27 iexplore.exe 3 8 18->27         started        32 iexplore.exe 18->32         started        34 iexplore.exe 18->34         started        36 iexplore.exe 18->36         started        process8 dnsIp9 53 kapasky-antivirus.firewall-gateway.net 212.193.30.119, 4000, 49766, 49767 SPD-NETTR Russian Federation 27->53 49 L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe, PE32 27->49 dropped 51 C:\...\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0, data 27->51 dropped 75 Creates an undocumented autostart registry key 27->75 77 Creates autostart registry keys with suspicious names 27->77 79 Writes to foreign memory regions 27->79 38 notepad.exe 27->38         started        41 WerFault.exe 32->41         started        43 WerFault.exe 34->43         started        45 WerFault.exe 36->45         started        file10 signatures11 process12 signatures13 67 Deletes itself after installation 38->67
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-15 05:15:28 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ywu3ksehgfqxbizi6da4dlnldw4d3276hopzeldvfrxqsde2x2nq._file
Verdict:
malicious
Result
Malware family:
xpertrat
Create hunting rule
Score:
  10/10
Tags:
family:xpertrat evasion persistence rat trojan
Link:
https://tria.ge/reports/211117-zrkj1sbaar/
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
Maps connected drives based on registry
Checks BIOS information in registry
Deletes itself
Windows security modification
Adds policy Run key to start application
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
UAC bypass
Windows security bypass
XpertRAT
Unpacked files
SH256 hash:
4dad2df926ed4fe925713eb9b8fdfdade5bd93a587e9fb4e457df784099d510a
MD5 hash:
8bce22a2be10d7426acd3ee15eb8b95e
SHA1 hash:
07da2335f664e16b4c2b66ec3f143f1a278ce074
Detections:
win_xpertrat_a0
Create hunting rule
win_xpertrat_auto
Create hunting rule
Link:
https://www.unpac.me/results/753ec0be-fde8-44a4-b815-b262f1bdce2e/
Parent samples :
85f0af15d708b6a2ea67a30f2a858efc9f32af678a5633289c297f588443cd7a
e4b8184869d65a34fb9e0fb43d8b6c252cb153f7139485e3fde6d02cd6898242
c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535
3e77ec2e0bbc394a1841bfb8f9b004f93fcbc35b401580abd01c92c41b6635aa
f2926aaea4603961e15c9ac92eb599ddd51bd6e19bd7fded285a1db16753db87
18bea0cb94e7c9213588f2e8b500d66f4716c0e6ae1b68ec62ba28c64c627ca5
c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
Link:
https://www.unpac.me/results/753ec0be-fde8-44a4-b815-b262f1bdce2e/
SH256 hash:
1575d40e8a09a807b345019f2c147752d78f5de22d571db43775f1192589a5ff
MD5 hash:
443c40a5feb53122820a43997d918039
SHA1 hash:
9d9f3f6d724de9ade16b384e809513b0725b9ba4
Link:
https://www.unpac.me/results/753ec0be-fde8-44a4-b815-b262f1bdce2e/
SH256 hash:
47ae86d7eee8091b0340a34500ce8ca57b23b5a60f5312be1e01b3d0a2b6f605
MD5 hash:
5523e00ac5b7b98318ba4a96a147f53c
SHA1 hash:
6a1197eda07cabf9c1639ab970afce075babd511
Link:
https://www.unpac.me/results/753ec0be-fde8-44a4-b815-b262f1bdce2e/
SH256 hash:
c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b
MD5 hash:
d095a956c7c94b27bdb21ebded88207d
SHA1 hash:
90326a8d96ea3878ef4acafd12847f719ba141cd
Link:
https://www.unpac.me/results/753ec0be-fde8-44a4-b815-b262f1bdce2e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c5a9b5488731/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
XpertRAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b

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:MALWARE_Win_XpertRAT
Create hunting rule
Author:ditekSHen
Description:XpertRAT payload
Rule name:pe_imphash
Create hunting rule
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:Detects win.xpertrat.

File information

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

Malspam

XpertRAT

Executable exe c5a9b54887316170a328f0c1c1adab1db83debfe3b9f922c752c6f090c9abe9b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/206997/

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