Threat name:
Raccoon RedLine SmokeLoader Tofsee
Alert
Classification:
troj.spyw.evad
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus detection for URL or domain
Benign windows process drops PE files
Changes security center settings (notifications, updates, antivirus, firewall)
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to inject code into remote processes
Contains functionality to steal Internet Explorer form passwords
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Found many strings related to Crypto-Wallets (likely being stolen)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the windows firewall
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Performs DNS queries to domains with low reputation
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to download HTTP data from a sinkholed server
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Uses known network protocols on non-standard ports
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Raccoon Stealer
Yara detected RedLine Stealer
Yara detected SmokeLoader
behaviorgraph
top1
dnsIp2
2
Behavior Graph
ID:
481525
Sample:
5aC1boZSQm.exe
Startdate:
11/09/2021
Architecture:
WINDOWS
Score:
100
102
telete.in
2->102
104
ppzs07.site
2->104
106
2 other IPs or domains
2->106
132
Tries to download HTTP
data from a sinkholed
server
2->132
134
Snort IDS alert for
network traffic (e.g.
based on Emerging Threat
rules)
2->134
136
Antivirus detection
for URL or domain
2->136
138
15 other signatures
2->138
11
5aC1boZSQm.exe
2->11
started
14
zxhffveu.exe
2->14
started
16
iwcgvhj
2->16
started
18
11 other processes
2->18
signatures3
process4
dnsIp5
174
Detected unpacking (changes
PE section rights)
11->174
176
Contains functionality
to inject code into
remote processes
11->176
178
Injects a PE file into
a foreign processes
11->178
21
5aC1boZSQm.exe
11->21
started
180
Writes to foreign memory
regions
14->180
182
Allocates memory in
foreign processes
14->182
24
svchost.exe
14->24
started
27
iwcgvhj
16->27
started
108
127.0.0.1
unknown
unknown
18->108
110
192.168.2.1
unknown
unknown
18->110
112
marlingarly18.club
18->112
184
Changes security center
settings (notifications,
updates, antivirus,
firewall)
18->184
186
DLL side loading technique
detected
18->186
signatures6
process7
dnsIp8
164
Checks for kernel code
integrity (NtQuerySystemInformation(CodeIntegrityInformation))
21->164
166
Maps a DLL or memory
area into another process
21->166
168
Checks if the current
machine is a virtual
machine (disk enumeration)
21->168
29
explorer.exe
11
21->29
injected
122
microsoft-com.mail.protection.outlook.com
40.93.212.0, 25, 49805
MICROSOFT-CORP-MSN-AS-BLOCKUS
United States
24->122
124
defeatwax.ru
193.56.146.188, 443, 49806
LVLT-10753US
unknown
24->124
170
System process connects
to network (likely due
to code injection or
exploit)
24->170
172
Creates a thread in
another existing process
(thread injection)
27->172
signatures9
process10
dnsIp11
126
193.56.146.41, 49788, 9080
LVLT-10753US
unknown
29->126
128
91.241.19.38, 49801, 80
REDBYTES-ASRU
Russian Federation
29->128
130
18 other IPs or domains
29->130
94
C:\Users\user\AppData\Roaming\iwcgvhj, PE32
29->94
dropped
96
C:\Users\user\AppData\Local\Temp\A761.exe, PE32
29->96
dropped
98
C:\Users\user\AppData\Local\Temp\90EA.exe, PE32
29->98
dropped
100
3 other malicious files
29->100
dropped
192
System process connects
to network (likely due
to code injection or
exploit)
29->192
194
Benign windows process
drops PE files
29->194
196
Performs DNS queries
to domains with low
reputation
29->196
198
2 other signatures
29->198
34
88EA.exe
2
29->34
started
38
90EA.exe
80
29->38
started
41
E99D.exe
29->41
started
43
5 other processes
29->43
file12
signatures13
process14
dnsIp15
84
C:\Users\user\AppData\Local\...\zxhffveu.exe, PE32
34->84
dropped
140
Detected unpacking (changes
PE section rights)
34->140
142
Uses netsh to modify
the Windows network
and firewall settings
34->142
144
Modifies the windows
firewall
34->144
45
cmd.exe
34->45
started
48
cmd.exe
34->48
started
51
sc.exe
34->51
started
62
3 other processes
34->62
114
5.181.156.77, 49795, 80
MIVOCLOUDMD
Moldova Republic of
38->114
116
telete.in
195.201.225.248, 443, 49794
HETZNER-ASDE
Germany
38->116
86
C:\Users\user\AppData\LocalLow\sqlite3.dll, PE32
38->86
dropped
88
C:\Users\user\AppData\...\vcruntime140.dll, PE32
38->88
dropped
90
C:\Users\user\AppData\...\ucrtbase.dll, PE32
38->90
dropped
92
56 other files (none is malicious)
38->92
dropped
146
Tries to steal Mail
credentials (via file
access)
38->146
148
Contains functionality
to steal Internet Explorer
form passwords
38->148
53
cmd.exe
38->53
started
118
ppas08.top
45.93.4.90
LEASEWEB-DE-FRA-10DE
Russian Federation
41->118
150
Query firmware table
information (likely
to detect VMs)
41->150
152
Tries to detect sandboxes
and other dynamic analysis
tools (window names)
41->152
154
Tries to harvest and
steal ftp login credentials
41->154
156
Tries to harvest and
steal browser information
(history, passwords,
etc)
41->156
158
Hides threads from debuggers
43->158
160
Injects a PE file into
a foreign processes
43->160
162
Tries to detect sandboxes
/ dynamic malware analysis
system (registry check)
43->162
55
7F54.exe
43->55
started
58
conhost.exe
43->58
started
60
7F54.exe
43->60
started
64
3 other processes
43->64
file16
signatures17
process18
dnsIp19
188
Queries sensitive video
device information (via
WMI, Win32_VideoController,
often done to detect
virtual machines)
45->188
190
Queries sensitive disk
information (via WMI,
Win32_DiskDrive, often
done to detect virtual
machines)
45->190
66
conhost.exe
45->66
started
82
C:\Windows\SysWOW64\...\zxhffveu.exe (copy), PE32
48->82
dropped
68
conhost.exe
48->68
started
70
conhost.exe
51->70
started
72
conhost.exe
53->72
started
74
timeout.exe
53->74
started
120
146.70.35.170
TENET-1ZA
United Kingdom
55->120
76
conhost.exe
62->76
started
78
conhost.exe
62->78
started
80
conhost.exe
62->80
started
file20
signatures21
process22
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