mystic | 3c91163ea40ad7e35bac48ded16235cfe9003c914f570e27b4e2d7b3c9c46c05

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 19:19

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General

Target

e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe
Size

1.2MB
MD5

8a5131fa4cb385e65b818b6189fb1662
SHA1

eebf2ac535f51d7d16219ad1bc4fdf92f2552271
SHA256

e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf
SHA512

884f4100578b35e61f5fdab2b90e374a00859764fb707778f124c7fd170d15081a33249dd5863a54b8740feaea817bdae31f0c9103e48425c79b791e7fb100e7
SSDEEP

24576:ayjC2EmuBGN1X+5Xr2CwfnI36qA3CzkQERXVC/M:h7sGNlWKqAtQiV

Score

10^/10

mystic redline gigant infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

gigant

77.91.124.55:19071

Signatures

Detect Mystic stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral19/memory/4948-35-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral19/memory/4948-36-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family
behavioral19/memory/4948-38-0x0000000000400000-0x0000000000428000-memory.dmp	mystic_family

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 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2DE995oj.exe	family_redline
behavioral19/memory/5096-42-0x0000000000C60000-0x0000000000C9E000-memory.dmp	family_redline

Executes dropped EXE 6 IoCs

Processes:

ct6Va7EI.exevS3rk8As.exerU8qo4rk.exeBR9UU5Ht.exe1nD90NV6.exe2DE995oj.exe

pid process

3620 ct6Va7EI.exe
3208 vS3rk8As.exe
2848 rU8qo4rk.exe
588 BR9UU5Ht.exe
3756 1nD90NV6.exe
5096 2DE995oj.exe

pid	process
3620	ct6Va7EI.exe
3208	vS3rk8As.exe
2848	rU8qo4rk.exe
588	BR9UU5Ht.exe
3756	1nD90NV6.exe
5096	2DE995oj.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exect6Va7EI.exevS3rk8As.exerU8qo4rk.exeBR9UU5Ht.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\\\""	e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.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\\\""	ct6Va7EI.exe
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\\\""	vS3rk8As.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup3 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP003.TMP\\\""	rU8qo4rk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup4 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP004.TMP\\\""	BR9UU5Ht.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1nD90NV6.exe

description pid process target process

PID 3756 set thread context of 4948 3756 1nD90NV6.exe AppLaunch.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2964 3756 WerFault.exe 1nD90NV6.exe

description	pid	process	target process
PID 3756 set thread context of 4948	3756	1nD90NV6.exe	AppLaunch.exe

pid	pid_target	process	target process
2964	3756	WerFault.exe	1nD90NV6.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exect6Va7EI.exevS3rk8As.exerU8qo4rk.exeBR9UU5Ht.exe1nD90NV6.exe

description	pid	process	target process
PID 2956 wrote to memory of 3620	2956	e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe	ct6Va7EI.exe
PID 2956 wrote to memory of 3620	2956	e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe	ct6Va7EI.exe
PID 2956 wrote to memory of 3620	2956	e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe	ct6Va7EI.exe
PID 3620 wrote to memory of 3208	3620	ct6Va7EI.exe	vS3rk8As.exe
PID 3620 wrote to memory of 3208	3620	ct6Va7EI.exe	vS3rk8As.exe
PID 3620 wrote to memory of 3208	3620	ct6Va7EI.exe	vS3rk8As.exe
PID 3208 wrote to memory of 2848	3208	vS3rk8As.exe	rU8qo4rk.exe
PID 3208 wrote to memory of 2848	3208	vS3rk8As.exe	rU8qo4rk.exe
PID 3208 wrote to memory of 2848	3208	vS3rk8As.exe	rU8qo4rk.exe
PID 2848 wrote to memory of 588	2848	rU8qo4rk.exe	BR9UU5Ht.exe
PID 2848 wrote to memory of 588	2848	rU8qo4rk.exe	BR9UU5Ht.exe
PID 2848 wrote to memory of 588	2848	rU8qo4rk.exe	BR9UU5Ht.exe
PID 588 wrote to memory of 3756	588	BR9UU5Ht.exe	1nD90NV6.exe
PID 588 wrote to memory of 3756	588	BR9UU5Ht.exe	1nD90NV6.exe
PID 588 wrote to memory of 3756	588	BR9UU5Ht.exe	1nD90NV6.exe
PID 3756 wrote to memory of 448	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 448	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 448	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 3756 wrote to memory of 4948	3756	1nD90NV6.exe	AppLaunch.exe
PID 588 wrote to memory of 5096	588	BR9UU5Ht.exe	2DE995oj.exe
PID 588 wrote to memory of 5096	588	BR9UU5Ht.exe	2DE995oj.exe
PID 588 wrote to memory of 5096	588	BR9UU5Ht.exe	2DE995oj.exe

C:\Users\Admin\AppData\Local\Temp\e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe
"C:\Users\Admin\AppData\Local\Temp\e45cad29f3234c6392c5f6e84eb764dce17d47da6e46a61cd2f50f56ea080fcf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ct6Va7EI.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ct6Va7EI.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3620
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\vS3rk8As.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\vS3rk8As.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:3208
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rU8qo4rk.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rU8qo4rk.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:2848
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\BR9UU5Ht.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\BR9UU5Ht.exe
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:588
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1nD90NV6.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1nD90NV6.exe
        6⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:3756
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        7⤵
        
        PID:448
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        7⤵
        
        PID:4948
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 596
        7⤵
        Program crash
        
        PID:2964
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2DE995oj.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2DE995oj.exe
        6⤵
        Executes dropped EXE
        
        PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3756 -ip 3756
1⤵
PID:1740

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\ct6Va7EI.exe

Filesize
1.0MB

MD5
a9dca1732d355fea88ec0c023cc39992

SHA1
a5103cf24246bfb67fbd294023996e6d88274891

SHA256
f0e1f4d8aa8e6938b2aa04788b5b04ad40117febc2e576f6f8799617772e4522

SHA512
a1101d759c6c97b29243913b4576b09be5f80e5b7eb46fcea119b4941f53cf872cbfcbb8e351a3d51ddb02e2ad0096393b5bc6e40c951c2f099b315ea4995975

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\vS3rk8As.exe

Filesize
884KB

MD5
98877685f7e2ba9d0d7bc106b1547a0f

SHA1
018ab45b956bf5a918f1eb1dc9b3d59da91c8894

SHA256
7f1e19096ffc6d2be4657c7dfdace607141f47b2ce80a607affbcc570fb003e2

SHA512
2bdfe05205cb81913d4112c9fc2796ef63555c97434001510baa47d1c5e237f8657a99be48cf3743c23aefd4acd2bb7d5336ff32bd300ea89c89ab5457bab6cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rU8qo4rk.exe

Filesize
590KB

MD5
784e998183e929ce76fc8a9caf39426a

SHA1
44defd2b3d9eb2a085dddc0f9efa7f9743fd60dd

SHA256
65f9f3263888b314eb7a6db9c7d634eb12da8dd4c949ba2327ce05e0698dafb9

SHA512
7187fc0cd4e36f312ba85053a65b9151f169f1ccb3430bacc6e48f1ab920fdfbe4bbade65124742fe82cdea29cc8eebb6bfa048793c3c4e3f041c761416eae46

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\BR9UU5Ht.exe

Filesize
417KB

MD5
b3e27bc42c0d400f58083d243e52976b

SHA1
dfb89f92eaf181b6e424c0752c4a50edb99eb6bf

SHA256
7bc60a53f2e41fbf75340717de9ffcc9b6fd784a5d53c6179c11edf693435461

SHA512
43cdcf38bc097faf2979f7d080aa701b332ada3db6b24720b60c357cf1dc5125517ddd22a55774cada98be57b309a32d6e77fa3b35e536444585943cae5a66f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1nD90NV6.exe

Filesize
378KB

MD5
f0831f173733de08511f3a0739f278a6

SHA1
06dc809d653c5d2c97386084ae13b50a73eb5b60

SHA256
8b00f9dce8ceb2123fba3bc9f88419960d1e661b6287eafeba4f0a2ee4be3d27

SHA512
19e3176ce1f154758f685cc4582e93587aa534a251de315473e35758dcd6ff6315880be7602097308dc89c355742be4729bad81de597e8d430a8e868082314e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2DE995oj.exe

Filesize
231KB

MD5
7286367aae7c7200b7d3449ce31b2470

SHA1
a495381377b250c8fcf005c03e7caaeaed97bf72

SHA256
1586e3f814e6bde402145046600ca3ce31517ad77a4627b685b1b372604798b8

SHA512
e584a51dad1ca213ef3307eb4c349f210829f6e53b2f2ecb4fdc8f9001e1363e74af316dadb208efe6ad457088e3bbcd0dfeeeaafce19284bd669b9928d21335

Download Submit
memory/4948-36-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4948-38-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4948-35-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5096-42-0x0000000000C60000-0x0000000000C9E000-memory.dmp

Filesize
248KB

Download
memory/5096-43-0x0000000007ED0000-0x0000000008474000-memory.dmp

Filesize
5.6MB

Download
memory/5096-44-0x0000000007A20000-0x0000000007AB2000-memory.dmp

Filesize
584KB

Download
memory/5096-45-0x0000000004FE0000-0x0000000004FEA000-memory.dmp

Filesize
40KB

Download
memory/5096-46-0x0000000008AA0000-0x00000000090B8000-memory.dmp

Filesize
6.1MB

Download
memory/5096-47-0x0000000007D70000-0x0000000007E7A000-memory.dmp

Filesize
1.0MB

Download
memory/5096-48-0x0000000007B20000-0x0000000007B32000-memory.dmp

Filesize
72KB

Download
memory/5096-49-0x0000000007CA0000-0x0000000007CDC000-memory.dmp

Filesize
240KB

Download
memory/5096-50-0x0000000007CE0000-0x0000000007D2C000-memory.dmp

Filesize
304KB

Download