Threat name:
LummaC, Python Stealer, Amadey, LummaC S
Alert
Classification:
phis.troj.spyw.evad
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Creates an undocumented autostart registry key
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Gathers network related connection and port information
Hides threads from debuggers
Injects a PE file into a foreign processes
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Capture Wi-Fi password
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
System process connects to network (likely due to code injection or exploit)
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
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 detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal WLAN passwords
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Amadeys Clipper DLL
Yara detected Amadeys stealer DLL
Yara detected Generic Downloader
Yara detected Generic Python Stealer
Yara detected LummaC Stealer
Yara detected Mars stealer
Yara detected Monster Stealer
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected Vidar stealer
behaviorgraph
top1
signatures2
2
Behavior Graph
ID:
1403172
Sample:
byGoj135nH.exe
Startdate:
05/03/2024
Architecture:
WINDOWS
Score:
100
146
Multi AV Scanner detection
for domain / URL
2->146
148
Found malware configuration
2->148
150
Malicious sample detected
(through community Yara
rule)
2->150
152
28 other signatures
2->152
9
explorgu.exe
1
60
2->9
started
14
byGoj135nH.exe
5
2->14
started
16
newsun.exe
2->16
started
process3
dnsIp4
126
185.215.113.32
WHOLESALECONNECTIONSNL
Portugal
9->126
128
185.215.113.45
WHOLESALECONNECTIONSNL
Portugal
9->128
130
3 other IPs or domains
9->130
98
C:\Users\user\AppData\Roaming\...\cred64.dll, PE32+
9->98
dropped
100
C:\Users\user\AppData\Roaming\...\clip64.dll, PE32
9->100
dropped
102
C:\Users\user\AppData\...\cryptotaeg.exe, PE32
9->102
dropped
106
29 other malicious files
9->106
dropped
174
Multi AV Scanner detection
for dropped file
9->174
176
Detected unpacking (changes
PE section rights)
9->176
178
Tries to detect sandboxes
and other dynamic analysis
tools (window names)
9->178
186
3 other signatures
9->186
18
juditttt.exe
9->18
started
22
jokerpos.exe
9->22
started
24
osminog.exe
2
9->24
started
26
9 other processes
9->26
104
C:\Users\user\AppData\Local\...\explorgu.exe, PE32
14->104
dropped
180
Found evasive API chain
(may stop execution
after reading information
in the PEB, e.g. number
of processors)
14->180
182
Tries to evade debugger
and weak emulator (self
modifying code)
14->182
184
Tries to detect virtualization
through RDTSC time measurements
14->184
file5
signatures6
process7
file8
86
C:\Users\user\AppData\...\_quoting_c.pyd, PE32+
18->86
dropped
88
C:\Users\user\AppData\...\vcruntime140.dll, PE32+
18->88
dropped
90
C:\Users\user\AppData\...\unicodedata.pyd, PE32+
18->90
dropped
94
32 other files (31 malicious)
18->94
dropped
154
Multi AV Scanner detection
for dropped file
18->154
156
Tries to detect sandboxes
and other dynamic analysis
tools (process name
or module or function)
18->156
28
stub.exe
18->28
started
158
Writes to foreign memory
regions
22->158
160
Allocates memory in
foreign processes
22->160
162
Injects a PE file into
a foreign processes
22->162
33
RegAsm.exe
22->33
started
45
2 other processes
22->45
164
Contains functionality
to inject code into
remote processes
24->164
166
LummaC encrypted strings
found
24->166
35
RegAsm.exe
24->35
started
37
conhost.exe
24->37
started
92
C:\Users\user\AppData\Local\...\chrosha.exe, PE32
26->92
dropped
168
System process connects
to network (likely due
to code injection or
exploit)
26->168
170
Creates an undocumented
autostart registry key
26->170
172
Uses schtasks.exe or
at.exe to add and modify
task schedules
26->172
39
RegAsm.exe
26->39
started
41
rundll32.exe
23
26->41
started
43
RegAsm.exe
26->43
started
47
10 other processes
26->47
signatures9
process10
dnsIp11
132
208.95.112.1
TUT-ASUS
United States
28->132
142
3 other IPs or domains
28->142
108
C:\Users\user\AppData\Local\...\Monster.exe, PE32+
28->108
dropped
110
C:\Users\user\AppData\...\system_info.txt, Algol
28->110
dropped
188
Tries to detect sandboxes
and other dynamic analysis
tools (process name
or module or function)
28->188
210
3 other signatures
28->210
49
cmd.exe
28->49
started
51
cmd.exe
28->51
started
53
cmd.exe
28->53
started
66
14 other processes
28->66
134
94.156.8.100
NET1-ASBG
Bulgaria
33->134
112
C:\Users\user\AppData\...\softokn3[1].dll, PE32
33->112
dropped
114
C:\Users\user\AppData\Local\...\nss3[1].dll, PE32
33->114
dropped
124
10 other files (6 malicious)
33->124
dropped
190
Tries to steal Mail
credentials (via file
/ registry access)
33->190
192
Found many strings related
to Crypto-Wallets (likely
being stolen)
33->192
194
Tries to steal Crypto
Currency Wallets
33->194
144
3 other IPs or domains
35->144
196
Queries sensitive video
device information (via
WMI, Win32_VideoController,
often done to detect
virtual machines)
35->196
198
Queries sensitive disk
information (via WMI,
Win32_DiskDrive, often
done to detect virtual
machines)
35->198
200
Found evasive API chain
(may stop execution
after reading information
in the PEB, e.g. number
of processors)
35->200
202
Queries sensitive service
information (via WMI,
Win32_StartupCommand,
often done to detect
sandboxes)
35->202
136
37.27.52.220
UNINETAZ
Iran (ISLAMIC Republic Of)
39->136
116
C:\Users\user\AppData\Local\...\nss3[1].dll, PE32
39->116
dropped
118
C:\Users\user\AppData\...\mozglue[1].dll, PE32
39->118
dropped
120
C:\Users\user\AppData\...\freebl3[1].dll, PE32
39->120
dropped
122
C:\Users\user\AppData\...\msvcp140[1].dll, PE32
39->122
dropped
212
2 other signatures
39->212
204
Tries to steal Instant
Messenger accounts or
passwords
41->204
206
Uses netsh to modify
the Windows network
and firewall settings
41->206
208
Tries to harvest and
steal WLAN passwords
41->208
55
powershell.exe
41->55
started
58
netsh.exe
2
41->58
started
60
conhost.exe
45->60
started
62
WMIC.exe
45->62
started
138
20.218.68.91
MICROSOFT-CORP-MSN-AS-BLOCKUS
United States
47->138
140
104.21.69.250
CLOUDFLARENETUS
United States
47->140
64
conhost.exe
47->64
started
file12
signatures13
process14
file15
82
3 other processes
49->82
68
conhost.exe
51->68
started
70
WMIC.exe
51->70
started
72
conhost.exe
53->72
started
74
WMIC.exe
53->74
started
96
C:\Users\user\...\246122658369_Desktop.zip, Zip
55->96
dropped
76
conhost.exe
55->76
started
78
conhost.exe
58->78
started
80
conhost.exe
66->80
started
84
20 other processes
66->84
process16
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