mystic | f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04-03-2024 02:06

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General

Target

f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe
Size

1.2MB
MD5

07955226491bc30f939c7d1da1dbe64e
SHA1

03881d43e06e1b02e5d0058b195203a1391852f4
SHA256

f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8
SHA512

416ed817511c5ef2246b5e9da127a1c3a617673e926c88ea463172bfac186bb2e6ea736528ae0adc093b000e76b98b75ce783dbda0f3ff4ae8155f7a4e1d67d6
SSDEEP

24576:ryyzUvBsZjf1NDCZroGqez2RDOS7J4Nx63+DuWFjURrZO7/7iiipdRS2NK5cm:e4rO4DJ7y63+PFIE/7mRSkK5

Score

10^/10

mystic redline smokeloader grome backdoor evasion infostealer persistence stealer trojan

Malware Config

Extracted

Family

smokeloader

Version

2022

http://77.91.68.29/fks/

rc4.i32

Extracted

Family

redline

Botnet

grome

77.91.124.86:19084

Signatures

Detect Mystic stealer payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023210-23.dat	mystic_family

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	AppLaunch.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	AppLaunch.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	AppLaunch.exe

Mystic
Mystic is an infostealer written in C++.
stealer mystic
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 1 IoCs

resource	yara_rule
behavioral1/memory/544-37-0x0000000000400000-0x000000000043E000-memory.dmp	family_redline

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs

resource	yara_rule
behavioral1/memory/1376-21-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender

Detects executables packed with ConfuserEx Mod 1 IoCs

resource	yara_rule
behavioral1/memory/544-37-0x0000000000400000-0x000000000043E000-memory.dmp	INDICATOR_EXE_Packed_ConfuserEx

Executes dropped EXE 6 IoCs

pid	Process
2272	gg0rK76.exe
4028	ou0TN33.exe
1756	1VC42qC8.exe
2040	2Fr3134.exe
3020	3eS92ew.exe
2004	4eO517vE.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	ou0TN33.exe
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\\\""	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.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\\\""	gg0rK76.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 1376	1756	1VC42qC8.exe	95
PID 2004 set thread context of 544	2004	4eO517vE.exe	102

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

description	ioc	Process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3eS92ew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3eS92ew.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3eS92ew.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3020	3eS92ew.exe
3020	3eS92ew.exe
1376	AppLaunch.exe
1376	AppLaunch.exe
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
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3500	Process not Found
3500	Process not Found
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3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
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3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
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3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found
3500	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3020	3eS92ew.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1376	AppLaunch.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3500	Process not Found

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 2272	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	89
PID 4412 wrote to memory of 2272	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	89
PID 4412 wrote to memory of 2272	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	89
PID 2272 wrote to memory of 4028	2272	gg0rK76.exe	90
PID 2272 wrote to memory of 4028	2272	gg0rK76.exe	90
PID 2272 wrote to memory of 4028	2272	gg0rK76.exe	90
PID 4028 wrote to memory of 1756	4028	ou0TN33.exe	92
PID 4028 wrote to memory of 1756	4028	ou0TN33.exe	92
PID 4028 wrote to memory of 1756	4028	ou0TN33.exe	92
PID 1756 wrote to memory of 2356	1756	1VC42qC8.exe	93
PID 1756 wrote to memory of 2356	1756	1VC42qC8.exe	93
PID 1756 wrote to memory of 2356	1756	1VC42qC8.exe	93
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 1756 wrote to memory of 1376	1756	1VC42qC8.exe	95
PID 4028 wrote to memory of 2040	4028	ou0TN33.exe	96
PID 4028 wrote to memory of 2040	4028	ou0TN33.exe	96
PID 4028 wrote to memory of 2040	4028	ou0TN33.exe	96
PID 2272 wrote to memory of 3020	2272	gg0rK76.exe	97
PID 2272 wrote to memory of 3020	2272	gg0rK76.exe	97
PID 2272 wrote to memory of 3020	2272	gg0rK76.exe	97
PID 4412 wrote to memory of 2004	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	101
PID 4412 wrote to memory of 2004	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	101
PID 4412 wrote to memory of 2004	4412	f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe	101
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102
PID 2004 wrote to memory of 544	2004	4eO517vE.exe	102

C:\Users\Admin\AppData\Local\Temp\f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe
"C:\Users\Admin\AppData\Local\Temp\f4555b54180c53e34ad814d42e0a845aa07e98bf0bd305194be7e832c63657d8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\gg0rK76.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\gg0rK76.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ou0TN33.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ou0TN33.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4028
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1VC42qC8.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1VC42qC8.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1756
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        5⤵
        
        PID:2356
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        5⤵
        Modifies Windows Defender Real-time Protection settings
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1376
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2Fr3134.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2Fr3134.exe
      4⤵
      Executes dropped EXE
      PID:2040
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3eS92ew.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3eS92ew.exe
    3⤵
    - Executes dropped EXE
    - Checks SCSI registry key(s)
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:3020
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4eO517vE.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4eO517vE.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4eO517vE.exe

Filesize
1.9MB

MD5
f6a960e73b56f4fa26437ac5e12d7773

SHA1
96b2c9aa721bdd672501e5b07d12f61b6db86886

SHA256
68285c53ce6f94bd947ead934a14efca01ae117452fe559954e943748713f93c

SHA512
f8f13dbc76b5a2c3736a350ed2a973e7ba47ec20e2de6bd509ac8f67916e44b34fe06aee7973b2387e190277c8d4a479dabf833618eeecdd290ff4db46b6d3a9

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\gg0rK76.exe

Filesize
698KB

MD5
cf37c362b1315fcd7d5c5a6949afb490

SHA1
5fedb3d26f5310d18b7d23ae630102e34928f442

SHA256
b7232f1e4a6b35f836d1e0477df5c5bcfd2442963c5d0d970c7a3a686e957017

SHA512
feb61d923a7a0ea5a1088266111002b8f30f6b1edcd563f6af3b9edb80c33dc36c4679323316b52fa433750c3a185623a0be53db18851329e86f74d565cdd238

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3eS92ew.exe

Filesize
30KB

MD5
0a5301eaebbc0d911518a522131d77bc

SHA1
d7927e68859bad44b27ae61a7502197e42b7c80a

SHA256
f163e6834ab8ee4a4b0b479e045432cf3412144bb9b515177d330723f84d9cda

SHA512
39fd6434abc8f90bafeb6a93bcdd92c8279ab499c1802e735fcaa7d49224d16183866cc6802cd0abb06001dac4dcebebf298ee2f4c921f0e8b04f2a30c709aae

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ou0TN33.exe

Filesize
574KB

MD5
699e625390f2f89ad226573c6be60623

SHA1
d758ba568cf0ad83477c1b0c9a9a6fde42e45df6

SHA256
f6e0056da425ffc4eba2b5bb5869f9dd5ea3beacad99b4b2c23421b1d0757f3b

SHA512
32d9ddae1595208bc5eca7056615bddb268002ca7475e409f1da290b1dfce7cb381a09a3bfd5e062f6406698f27964367d3ff4dafee8e237b0f03e1aa70a1252

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\1VC42qC8.exe

Filesize
1.6MB

MD5
29e9546e7fe835b413a5d65599213b53

SHA1
64d6d2eca4e197a390702a08b074c5ef6da2fa32

SHA256
d65b10dc2c1598935786fd0d562aaee9c9fc6b7d6f950da6de13db6686cab814

SHA512
e556877abd79052f3d3bc6175971001531f363745d396aa96302218cf11b4fc94980f946aae758ff14d8cc8af4d9dcb26503142e2d1cded2d21ab37ddc009658

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\2Fr3134.exe

Filesize
180KB

MD5
4190e7bd24169eb843c7217ebcadb360

SHA1
d2158f874a257fe0d9cb3eb1d2949135c53da037

SHA256
1fd396b1b0b6c40399fddd4e43d20ac01f9d6fa9fd204c990fa8e59825ac7bdc

SHA512
40ac888cb2b270d275784d31771eaa130891e0fd3f43e20c1c0b0670797af2351c7c1efa4503420c7ad11ee6049c46fb3fd171d256491591652719be978b99f7

Download Submit
memory/544-44-0x00000000079B0000-0x0000000007ABA000-memory.dmp

Filesize
1.0MB

Download
memory/544-41-0x0000000007890000-0x00000000078A0000-memory.dmp

Filesize
64KB

Download
memory/544-51-0x0000000007890000-0x00000000078A0000-memory.dmp

Filesize
64KB

Download
memory/544-50-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/544-47-0x0000000007940000-0x000000000798C000-memory.dmp

Filesize
304KB

Download
memory/544-37-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/544-38-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/544-39-0x0000000007BC0000-0x0000000008164000-memory.dmp

Filesize
5.6MB

Download
memory/544-40-0x00000000076B0000-0x0000000007742000-memory.dmp

Filesize
584KB

Download
memory/544-46-0x0000000007900000-0x000000000793C000-memory.dmp

Filesize
240KB

Download
memory/544-42-0x0000000002A00000-0x0000000002A0A000-memory.dmp

Filesize
40KB

Download
memory/544-43-0x0000000008790000-0x0000000008DA8000-memory.dmp

Filesize
6.1MB

Download
memory/544-45-0x00000000078A0000-0x00000000078B2000-memory.dmp

Filesize
72KB

Download
memory/1376-21-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1376-28-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/1376-49-0x0000000074A90000-0x0000000075240000-memory.dmp

Filesize
7.7MB

Download
memory/3020-29-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3020-32-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3500-30-0x0000000002F60000-0x0000000002F76000-memory.dmp

Filesize
88KB

Download