Threat name:
AsyncRAT Djvu RedLine SmokeLoader Tofsee
Alert
Classification:
rans.troj.spyw.evad
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
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
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
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)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
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 and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade analysis by execution special instruction which cause usermode exception
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Djvu Ransomware
Yara detected RedLine Stealer
Yara detected SmokeLoader
Yara detected Vidar stealer
behaviorgraph
top1
dnsIp2
2
Behavior Graph
ID:
529560
Sample:
N6y7A7R9wg.exe
Startdate:
27/11/2021
Architecture:
WINDOWS
Score:
100
89
api.2ip.ua
77.123.139.190, 443, 49877
VOLIA-ASUA
Ukraine
2->89
91
45.134.225.35, 49911, 7821
DAINTERNATIONALGROUPGB
Germany
2->91
93
3 other IPs or domains
2->93
115
Snort IDS alert for
network traffic (e.g.
based on Emerging Threat
rules)
2->115
117
Antivirus detection
for URL or domain
2->117
119
Antivirus detection
for dropped file
2->119
121
24 other signatures
2->121
11
N6y7A7R9wg.exe
2->11
started
13
slwmxung.exe
2->13
started
16
jejiith
2->16
started
18
5 other processes
2->18
signatures3
process4
signatures5
20
N6y7A7R9wg.exe
11->20
started
163
Detected unpacking (changes
PE section rights)
13->163
165
Detected unpacking (overwrites
its own PE header)
13->165
167
Writes to foreign memory
regions
13->167
169
Allocates memory in
foreign processes
13->169
23
svchost.exe
13->23
started
171
Machine Learning detection
for dropped file
16->171
173
Contains functionality
to inject code into
remote processes
16->173
175
Injects a PE file into
a foreign processes
16->175
26
jejiith
16->26
started
28
WerFault.exe
18->28
started
process6
dnsIp7
123
Checks for kernel code
integrity (NtQuerySystemInformation(CodeIntegrityInformation))
20->123
125
Maps a DLL or memory
area into another process
20->125
127
Checks if the current
machine is a virtual
machine (disk enumeration)
20->127
129
Creates a thread in
another existing process
(thread injection)
20->129
30
explorer.exe
14
20->30
injected
35
conhost.exe
20->35
started
95
quadoil.ru
85.143.175.153, 443, 49837, 49888
TRADERSOFTRU
Russian Federation
23->95
97
microsoft-com.mail.protection.outlook.com
52.101.24.0, 25, 49817
MICROSOFT-CORP-MSN-AS-BLOCKUS
United States
23->97
131
System process connects
to network (likely due
to code injection or
exploit)
23->131
133
Queries sensitive video
device information (via
WMI, Win32_VideoController,
often done to detect
virtual machines)
28->133
135
Queries sensitive disk
information (via WMI,
Win32_DiskDrive, often
done to detect virtual
machines)
28->135
signatures8
process9
dnsIp10
101
185.233.81.115, 443, 49801
SUPERSERVERSDATACENTERRU
Russian Federation
30->101
103
192.162.246.70, 49779, 80
DATACHEAP-LLC-ASRU
Russian Federation
30->103
105
9 other IPs or domains
30->105
81
C:\Users\user\AppData\Roaming\jejiith, PE32
30->81
dropped
83
C:\Users\user\AppData\Roaming\awjiith, PE32
30->83
dropped
85
C:\Users\user\AppData\Local\Temp5B7.exe, PE32
30->85
dropped
87
10 other malicious files
30->87
dropped
107
System process connects
to network (likely due
to code injection or
exploit)
30->107
109
Benign windows process
drops PE files
30->109
111
Deletes itself after
installation
30->111
113
Hides that the sample
has been downloaded
from the Internet (zone.identifier)
30->113
37
E405.exe
2
30->37
started
41
1190.exe
30->41
started
43
B3F2.exe
30->43
started
46
2 other processes
30->46
file11
signatures12
process13
dnsIp14
75
C:\Users\user\AppData\Local\...\slwmxung.exe, PE32
37->75
dropped
137
Multi AV Scanner detection
for dropped file
37->137
139
Detected unpacking (changes
PE section rights)
37->139
141
Detected unpacking (overwrites
its own PE header)
37->141
157
2 other signatures
37->157
48
cmd.exe
1
37->48
started
51
cmd.exe
2
37->51
started
53
sc.exe
1
37->53
started
59
3 other processes
37->59
143
Machine Learning detection
for dropped file
41->143
145
Checks for kernel code
integrity (NtQuerySystemInformation(CodeIntegrityInformation))
41->145
147
Maps a DLL or memory
area into another process
41->147
159
2 other signatures
41->159
99
file-file-host4.com
43->99
77
C:\Users\user\AppData\...\sqlite3[1].dll, PE32
43->77
dropped
79
C:\ProgramData\sqlite3.dll, PE32
43->79
dropped
149
Tries to harvest and
steal browser information
(history, passwords,
etc)
43->149
151
Tries to steal Crypto
Currency Wallets
43->151
153
Antivirus detection
for dropped file
46->153
155
Tries to detect sandboxes
and other dynamic analysis
tools (window names)
46->155
161
3 other signatures
46->161
55
1B1.exe
46->55
started
57
conhost.exe
46->57
started
file15
signatures16
process17
file18
73
C:\Windows\SysWOW64\...\slwmxung.exe (copy), PE32
48->73
dropped
61
conhost.exe
48->61
started
63
conhost.exe
51->63
started
65
conhost.exe
53->65
started
67
WerFault.exe
55->67
started
69
conhost.exe
59->69
started
71
conhost.exe
59->71
started
process19
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.