a310logger | 51d10bac8aff735f5f365f2ca016a039f9b2c8cabb4e42dca90ab06c13180746

Analysis

max time kernel
150s
max time network
110s
platform
windows10_x64
resource
win10v20210410
submitted
25-05-2021 07:41

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General

Target

TT09099.exe
Size

252KB
MD5

3b376a64c278d40ce6e50a4fdc9b2022
SHA1

0592e33cdedf18068de9d8350a2181ef711a0ba3
SHA256

51d10bac8aff735f5f365f2ca016a039f9b2c8cabb4e42dca90ab06c13180746
SHA512

0bbfd6cc70ec6cfc4218e5d853171578bcf0e36b7b08ba7598b5d52346437dd0c95df09f077099da4fac859f2986dc6caea6242dfaf44acfc6bd87537e0129d0

Score

10^/10

a310logger stormkitty persistence spyware stealer

Malware Config

Signatures

A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
stealer spyware a310logger
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3688-119-0x0000000000400000-0x0000000000418000-memory.dmp	family_stormkitty
behavioral2/memory/3688-120-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/1036-129-0x0000000000412452-mapping.dmp	family_stormkitty
behavioral2/memory/1020-138-0x0000000000412452-mapping.dmp	family_stormkitty

A310logger Executable 10 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3688-119-0x0000000000400000-0x0000000000418000-memory.dmp	a310logger
behavioral2/memory/3688-120-0x0000000000412452-mapping.dmp	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
behavioral2/memory/1036-129-0x0000000000412452-mapping.dmp	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
behavioral2/memory/1020-138-0x0000000000412452-mapping.dmp	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe	a310logger

Executes dropped EXE 3 IoCs

Processes:

MZ.exeMZ.exeMZ.exe

pid process

3924 MZ.exe
2736 MZ.exe
2892 MZ.exe
Loads dropped DLL 2 IoCs

Processes:

TT09099.exe

pid process

3892 TT09099.exe
3892 TT09099.exe
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
3924	MZ.exe
2736	MZ.exe
2892	MZ.exe

pid	process
3892	TT09099.exe
3892	TT09099.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

TT09099.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\bxsx = "C:\\Users\\Admin\\AppData\\Roaming\\eyikq\\dynqv.exe"	TT09099.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

10 icanhazip.com
Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.

flow	ioc
10	icanhazip.com

Suspicious use of SetThreadContext 4 IoCs

Processes:

TT09099.exeTT09099.exe

description	pid	process	target process
PID 3892 set thread context of 2504	3892	TT09099.exe	TT09099.exe
PID 2504 set thread context of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 set thread context of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 set thread context of 1020	2504	TT09099.exe	InstallUtil.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

InstallUtil.exeInstallUtil.exeInstallUtil.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

MZ.exeMZ.exeMZ.exe

pid process

3924 MZ.exe
3924 MZ.exe
2736 MZ.exe
2736 MZ.exe
2892 MZ.exe
2892 MZ.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

TT09099.exe

pid process

2504 TT09099.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

TT09099.exe

pid process

3892 TT09099.exe

pid	process
3924	MZ.exe
3924	MZ.exe
2736	MZ.exe
2736	MZ.exe
2892	MZ.exe
2892	MZ.exe

pid	process
2504	TT09099.exe

pid	process
3892	TT09099.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

InstallUtil.exeMZ.exeInstallUtil.exeMZ.exeInstallUtil.exeMZ.exe

description	pid	process
Token: SeDebugPrivilege	3688	InstallUtil.exe
Token: SeDebugPrivilege	3924	MZ.exe
Token: SeDebugPrivilege	1036	InstallUtil.exe
Token: SeDebugPrivilege	2736	MZ.exe
Token: SeDebugPrivilege	1020	InstallUtil.exe
Token: SeDebugPrivilege	2892	MZ.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

TT09099.exe

pid process

2504 TT09099.exe
2504 TT09099.exe

pid	process
2504	TT09099.exe
2504	TT09099.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

TT09099.exeTT09099.exeInstallUtil.exeInstallUtil.exeInstallUtil.exe

description	pid	process	target process
PID 3892 wrote to memory of 2504	3892	TT09099.exe	TT09099.exe
PID 3892 wrote to memory of 2504	3892	TT09099.exe	TT09099.exe
PID 3892 wrote to memory of 2504	3892	TT09099.exe	TT09099.exe
PID 3892 wrote to memory of 2504	3892	TT09099.exe	TT09099.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 3688	2504	TT09099.exe	InstallUtil.exe
PID 3688 wrote to memory of 3924	3688	InstallUtil.exe	MZ.exe
PID 3688 wrote to memory of 3924	3688	InstallUtil.exe	MZ.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1036	2504	TT09099.exe	InstallUtil.exe
PID 1036 wrote to memory of 2736	1036	InstallUtil.exe	MZ.exe
PID 1036 wrote to memory of 2736	1036	InstallUtil.exe	MZ.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 2504 wrote to memory of 1020	2504	TT09099.exe	InstallUtil.exe
PID 1020 wrote to memory of 2892	1020	InstallUtil.exe	MZ.exe
PID 1020 wrote to memory of 2892	1020	InstallUtil.exe	MZ.exe

C:\Users\Admin\AppData\Local\Temp\TT09099.exe
"C:\Users\Admin\AppData\Local\Temp\TT09099.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3892

C:\Users\Admin\AppData\Local\Temp\TT09099.exe
"C:\Users\Admin\AppData\Local\Temp\TT09099.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2504

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
3⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3688

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3924

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
3⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2736

C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
3⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1020

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0\UsageLogs\MZ.exe.log
MD5
0d96352b982082afe2903d10c1b819a2

SHA1
37067f1193b4a3deaf27f35a09ddba8e2adee680

SHA256
825a471d43d2b81bed778b2bd7a3bf1a2b22a81c3b0de3c68bc2aa9c5bebcec2

SHA512
e55862d182b1f1bc1b296cb213e2c576f545120678e2be930dbcf764069ecb9eb3737cfa010c0a4861a5a20605bfae42a49b955d80006c52bd1486b7134bc2af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\InstallUtil.exe.log
MD5
a62535934fa7300b21d015be8236a2e5

SHA1
d94f020f9f0f299c46c0ce9b141a3b9da0f32814

SHA256
3efaf87f4602570f0be76f4bd246425060a2731f83aec474d7f354f8e6f62c70

SHA512
69761425416d2de37dc8934232160e2b8912b433cf8cbfc5505bc00d0c227624808c6414297addb91c966ff27045e9c4679af916efb563576c6fa23fdff1c5a5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
MD5
1bad0cbd09b05a21157d8255dc801778

SHA1
ff284bba12f011b72e20d4c9537d6c455cdbf228

SHA256
218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

SHA512
4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

Download Submit
\Users\Admin\AppData\Local\Temp\nsp2051.tmp\System.dll
MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nsp2051.tmp\System.dll
MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
memory/1020-139-0x0000000003170000-0x0000000003171000-memory.dmp

Filesize
4KB

Download
memory/1020-138-0x0000000000412452-mapping.dmp

Download
memory/1036-129-0x0000000000412452-mapping.dmp

Download
memory/1036-131-0x0000000002B20000-0x0000000002B21000-memory.dmp

Filesize
4KB

Download
memory/2504-122-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2504-116-0x00000000004024E0-mapping.dmp

Download
memory/2736-132-0x0000000000000000-mapping.dmp

Download
memory/2736-136-0x0000000001370000-0x0000000001372000-memory.dmp

Filesize
8KB

Download
memory/2892-140-0x0000000000000000-mapping.dmp

Download
memory/2892-143-0x0000000002BB0000-0x0000000002BB2000-memory.dmp

Filesize
8KB

Download
memory/3688-123-0x0000000002A70000-0x0000000002A71000-memory.dmp

Filesize
4KB

Download
memory/3688-120-0x0000000000412452-mapping.dmp

Download
memory/3688-119-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3892-121-0x0000000002250000-0x0000000002253000-memory.dmp

Filesize
12KB

Download
memory/3924-127-0x0000000000B40000-0x0000000000B42000-memory.dmp

Filesize
8KB

Download
memory/3924-124-0x0000000000000000-mapping.dmp

Download