mystic | 35fa914c6357cde578322016bb343396ee5cbe965e37dbbc27e58563c27f3d00

Analysis

max time kernel
136s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 10:02

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General

Target

2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe
Size

633KB
MD5

497349983098259f6c07c33d745f116a
SHA1

0a428f49d309f05ea36a491441ee2ab866261c66
SHA256

2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101
SHA512

cd775e963e0e5a4f01b3b0df71a5ff49e9a1ae4e7af333c34692fe8bffe86d24a91e6ff8997cb91eccbf81df61ecf960d982bd91dc821838da2fd8be15b7d901
SSDEEP

12288:9MrJy901A8GwkPAcdjvughyEr4j8I4jVnczSsxJZxz2W0ZhJ:cyoAPPAOygFrJFczLx1X0ZhJ

Score

10^/10

mystic smokeloader backdoor persistence stealer trojan

Malware Config

Signatures

Detect Mystic stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4236-27-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/4236-33-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family
behavioral1/memory/4236-31-0x0000000000400000-0x0000000000432000-memory.dmp	mystic_family

Mystic
Mystic is an infostealer written in C++.
stealer mystic
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

Processes:

resource	yara_rule
behavioral1/memory/2972-15-0x0000000002350000-0x0000000002370000-memory.dmp	net_reactor
behavioral1/memory/2972-18-0x0000000002530000-0x000000000254E000-memory.dmp	net_reactor

Executes dropped EXE 4 IoCs

Processes:

JP3Xh11.exe1Cj56Fo0.exe2fU1429.exe3JA41Yf.exe

pid process

3092 JP3Xh11.exe
2972 1Cj56Fo0.exe
1460 2fU1429.exe
3008 3JA41Yf.exe

pid	process
3092	JP3Xh11.exe
2972	1Cj56Fo0.exe
1460	2fU1429.exe
3008	3JA41Yf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exeJP3Xh11.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	JP3Xh11.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

2fU1429.exe3JA41Yf.exe

description	pid	process	target process
PID 1460 set thread context of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 3008 set thread context of 4400	3008	3JA41Yf.exe	AppLaunch.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

AppLaunch.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1Cj56Fo0.exe

description pid process

Token: SeDebugPrivilege 2972 1Cj56Fo0.exe

description	pid	process
Token: SeDebugPrivilege	2972	1Cj56Fo0.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exeJP3Xh11.exe2fU1429.exe3JA41Yf.exe

description	pid	process	target process
PID 2844 wrote to memory of 3092	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	JP3Xh11.exe
PID 2844 wrote to memory of 3092	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	JP3Xh11.exe
PID 2844 wrote to memory of 3092	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	JP3Xh11.exe
PID 3092 wrote to memory of 2972	3092	JP3Xh11.exe	1Cj56Fo0.exe
PID 3092 wrote to memory of 2972	3092	JP3Xh11.exe	1Cj56Fo0.exe
PID 3092 wrote to memory of 2972	3092	JP3Xh11.exe	1Cj56Fo0.exe
PID 3092 wrote to memory of 1460	3092	JP3Xh11.exe	2fU1429.exe
PID 3092 wrote to memory of 1460	3092	JP3Xh11.exe	2fU1429.exe
PID 3092 wrote to memory of 1460	3092	JP3Xh11.exe	2fU1429.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 1460 wrote to memory of 4236	1460	2fU1429.exe	AppLaunch.exe
PID 2844 wrote to memory of 3008	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	3JA41Yf.exe
PID 2844 wrote to memory of 3008	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	3JA41Yf.exe
PID 2844 wrote to memory of 3008	2844	2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe	3JA41Yf.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe
PID 3008 wrote to memory of 4400	3008	3JA41Yf.exe	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe
"C:\Users\Admin\AppData\Local\Temp\2681e868e36ec912cf14855e552a41583eb47da1464ad71b64ddaae780d63101.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2844

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JP3Xh11.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JP3Xh11.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3092

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Cj56Fo0.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Cj56Fo0.exe
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2972

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2fU1429.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2fU1429.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1460

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
4⤵
PID:4236

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3JA41Yf.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3JA41Yf.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3008

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
3⤵
- Checks SCSI registry key(s)
PID:4400

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4396,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4024 /prefetch:8
1⤵
PID:2968

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3JA41Yf.exe
Filesize
164KB

MD5
a1b1f128cfe57119761068ba04f4f39a

SHA1
526cbb123beab2739db03117b7e828268b7e9bb7

SHA256
1f20739150a187fb178c7ed36062cfa7e91a6400a39d7059e30e5f3aceecad19

SHA512
7f4fb9dde3d76d5abd4efe1068b2c2f2cb133e51f1791950c0cb8610ec3b569514d527e4959e2422ed7292e030b201dce2b3ad330a5309a442474755c0fff011

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\JP3Xh11.exe
Filesize
435KB

MD5
4ce9c70a86d52d0b5df1f43ee15b87fc

SHA1
6fb9cbf5814d0ed0426729930a4969989f1494b0

SHA256
111a7cd9797f72730ff5032691264b8c7e85b854afd6149fcc09ca4e7f7812bc

SHA512
69ba094d4c0c6e94a287b095f28e1fb01aea0538d5e57180f150539bebf952bc27c758f7f2fa88b85197444c935ff7b19ddb3e1899e456c11683b510458e0dda

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Cj56Fo0.exe
Filesize
188KB

MD5
425e2a994509280a8c1e2812dfaad929

SHA1
4d5eff2fb3835b761e2516a873b537cbaacea1fe

SHA256
6f40f29ad16466785dfbe836dd375400949ff894e8aa03e2805ab1c1ac2d6f5a

SHA512
080a41e7926122e14b38901f2e1eb8100a08c5068a9a74099f060c5e601f056a66e607b4e006820276834bb01d913a3894de98e6d9ba62ce843df14058483aa0

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2fU1429.exe
Filesize
314KB

MD5
dbf28dfc5f5c0499a334ffbf393433b8

SHA1
35852646502d6fe2a1e7c60963c6811751bc3ddc

SHA256
12c1ae961dbad2b9668d0d69300d6510d6f3b5e9f967a1844b746fc03d47f8c0

SHA512
c1a7749ef40727d27b83e4237cd875caf3d92841c71a2336606acecbf7c20ed0204b8dbd91961e9081cc29d01734610f0a053cb13830548b6ad1a8ecdbf1b34b

Download Submit
memory/2972-19-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-16-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-18-0x0000000002530000-0x000000000254E000-memory.dmp

Filesize
120KB

Download
memory/2972-20-0x0000000002680000-0x0000000002712000-memory.dmp

Filesize
584KB

Download
memory/2972-17-0x0000000004BB0000-0x0000000005154000-memory.dmp

Filesize
5.6MB

Download
memory/2972-21-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-23-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-15-0x0000000002350000-0x0000000002370000-memory.dmp

Filesize
128KB

Download
memory/2972-14-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

Filesize
4KB

Download
memory/4236-27-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4236-33-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4236-31-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/4400-34-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download