mystic | 727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927

Analysis

max time kernel
140s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
04-10-2023 15:41

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General

Target

727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe
Size

1.6MB
MD5

943d9e24ff8a8fdda48109cdb84788f0
SHA1

93969ef15501e0897c126a2fc14e015f7997f757
SHA256

727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927
SHA512

4cf4e0f089931bce6fac4cf0332a62f2781207a349cc0aea2a82634bd490deb4a106d4722eeac24babdbed067a7b8237c08bdaba379d360b83281d0e8e441152
SSDEEP

49152:Fc1SHdVMmaBg9wD2MN6vlk7Q3CtOACo5T:1fMmaIw6vlIQCtz

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 4 IoCs

resource	yara_rule
behavioral1/memory/3852-35-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/3852-36-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/3852-37-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic
behavioral1/memory/3852-39-0x0000000000400000-0x0000000000428000-memory.dmp	family_mystic

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 3 IoCs

resource	yara_rule
behavioral1/files/0x0006000000023257-41.dat	family_redline
behavioral1/files/0x0006000000023257-42.dat	family_redline
behavioral1/memory/3708-43-0x0000000000950000-0x000000000098E000-memory.dmp	family_redline

Executes dropped EXE 6 IoCs

pid	Process
2960	Br9eL4eJ.exe
4348	DN2nt5Lf.exe
3428	rN0PI2AC.exe
2356	KL5QQ7PS.exe
4604	1zt58xM1.exe
3708	2pL979Xs.exe

Adds Run key to start application 2 TTPs 5 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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.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\\\""	Br9eL4eJ.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\\\""	DN2nt5Lf.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\\\""	rN0PI2AC.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\\\""	KL5QQ7PS.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4604 set thread context of 3852	4604	1zt58xM1.exe	89

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4312	4604	WerFault.exe	88
4496	3852	WerFault.exe	89

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2960	2256	727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe	83
PID 2256 wrote to memory of 2960	2256	727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe	83
PID 2256 wrote to memory of 2960	2256	727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe	83
PID 2960 wrote to memory of 4348	2960	Br9eL4eJ.exe	84
PID 2960 wrote to memory of 4348	2960	Br9eL4eJ.exe	84
PID 2960 wrote to memory of 4348	2960	Br9eL4eJ.exe	84
PID 4348 wrote to memory of 3428	4348	DN2nt5Lf.exe	85
PID 4348 wrote to memory of 3428	4348	DN2nt5Lf.exe	85
PID 4348 wrote to memory of 3428	4348	DN2nt5Lf.exe	85
PID 3428 wrote to memory of 2356	3428	rN0PI2AC.exe	86
PID 3428 wrote to memory of 2356	3428	rN0PI2AC.exe	86
PID 3428 wrote to memory of 2356	3428	rN0PI2AC.exe	86
PID 2356 wrote to memory of 4604	2356	KL5QQ7PS.exe	88
PID 2356 wrote to memory of 4604	2356	KL5QQ7PS.exe	88
PID 2356 wrote to memory of 4604	2356	KL5QQ7PS.exe	88
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 4604 wrote to memory of 3852	4604	1zt58xM1.exe	89
PID 2356 wrote to memory of 3708	2356	KL5QQ7PS.exe	95
PID 2356 wrote to memory of 3708	2356	KL5QQ7PS.exe	95
PID 2356 wrote to memory of 3708	2356	KL5QQ7PS.exe	95

C:\Users\Admin\AppData\Local\Temp\727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe
"C:\Users\Admin\AppData\Local\Temp\727a8346a22f9bcce3424ec7aca57c17420908be68ed3d26c90cc94fb2d0e927.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Br9eL4eJ.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Br9eL4eJ.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\DN2nt5Lf.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\DN2nt5Lf.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4348
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rN0PI2AC.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rN0PI2AC.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:3428
    - - C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\KL5QQ7PS.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\KL5QQ7PS.exe
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Suspicious use of WriteProcessMemory
        
        PID:2356
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1zt58xM1.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1zt58xM1.exe
        6⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:4604
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        7⤵
        
        PID:3852
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 156
        8⤵
        Program crash
        
        PID:4496
        
        C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 592
        7⤵
        Program crash
        
        PID:4312
      - C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2pL979Xs.exe
        
        C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2pL979Xs.exe
        6⤵
        Executes dropped EXE
        
        PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4604 -ip 4604
1⤵
PID:3768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3852 -ip 3852
1⤵
PID:4820

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\Br9eL4eJ.exe

Filesize
1.5MB

MD5
0be65acb94e41bee018697ce785238c1

SHA1
623cd8538406ccc30e8307c2316450d2fda9d512

SHA256
6e9830db6ab797614c0ba32f81f68f4baf3421fb2bb48a49591085ca58f3d2ae

SHA512
9ccd7e0c872b0ec842c8323f3663fe45cf5461b92a091f09968501a1ee9001721a053d26499487eba643f078f5d0cef9a37d64072bcb49d1ae6c59cc37d3ec0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Br9eL4eJ.exe

Filesize
1.5MB

MD5
0be65acb94e41bee018697ce785238c1

SHA1
623cd8538406ccc30e8307c2316450d2fda9d512

SHA256
6e9830db6ab797614c0ba32f81f68f4baf3421fb2bb48a49591085ca58f3d2ae

SHA512
9ccd7e0c872b0ec842c8323f3663fe45cf5461b92a091f09968501a1ee9001721a053d26499487eba643f078f5d0cef9a37d64072bcb49d1ae6c59cc37d3ec0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\DN2nt5Lf.exe

Filesize
1.3MB

MD5
163731cdbe45696e39f7702455ccfe35

SHA1
2d6c0c5e0cfdfe2bf5a37f6527d5fffc563c3172

SHA256
af6b854c2ae6e677c604a1bcd212794334550981785b73d19ef0c0d5e756967f

SHA512
9af71b53fe230bf52dcb6a2126896a8bbf78824d026d5cd06220cd5ae06c949528f058b67ef779a51ee61882237270d474bf06ec6ea7a2928f97e34e24829c15

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\DN2nt5Lf.exe

Filesize
1.3MB

MD5
163731cdbe45696e39f7702455ccfe35

SHA1
2d6c0c5e0cfdfe2bf5a37f6527d5fffc563c3172

SHA256
af6b854c2ae6e677c604a1bcd212794334550981785b73d19ef0c0d5e756967f

SHA512
9af71b53fe230bf52dcb6a2126896a8bbf78824d026d5cd06220cd5ae06c949528f058b67ef779a51ee61882237270d474bf06ec6ea7a2928f97e34e24829c15

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rN0PI2AC.exe

Filesize
825KB

MD5
e1b8167d76cea09005a28e2e46e64dae

SHA1
1a1c380a8771fe5c6714cd9ab3b46657a5b0b5ca

SHA256
29d2584b8cc8d5acaa08985b65d245fb4bfd7e7d11340f588c71efa92dfae8d0

SHA512
69ea3ad214226938d244f72c75bff569d12ef2575f95e4e5f5e82865936a90fa50ee0986da5a677e5f9805d6b170faf6374b2cee855a65be165d913c80c24995

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\rN0PI2AC.exe

Filesize
825KB

MD5
e1b8167d76cea09005a28e2e46e64dae

SHA1
1a1c380a8771fe5c6714cd9ab3b46657a5b0b5ca

SHA256
29d2584b8cc8d5acaa08985b65d245fb4bfd7e7d11340f588c71efa92dfae8d0

SHA512
69ea3ad214226938d244f72c75bff569d12ef2575f95e4e5f5e82865936a90fa50ee0986da5a677e5f9805d6b170faf6374b2cee855a65be165d913c80c24995

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\KL5QQ7PS.exe

Filesize
653KB

MD5
b8b323f269d1cf2de3c1dc7078221d6a

SHA1
bc1fbb7ad0e6210c4d42dcd523ea2244b8fac2e7

SHA256
7db7763280ec09cb135084fa771d62d7540b4395880adc976902fc080a9e76b3

SHA512
ccc630395ac145f4b35d8256b6755afc94bd64d8b70c2e6552feb67d198395e04122c703d7a83dc589e49da08c9baf7b9bad2cdeeaba2a90f08f8940d7a7355e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\KL5QQ7PS.exe

Filesize
653KB

MD5
b8b323f269d1cf2de3c1dc7078221d6a

SHA1
bc1fbb7ad0e6210c4d42dcd523ea2244b8fac2e7

SHA256
7db7763280ec09cb135084fa771d62d7540b4395880adc976902fc080a9e76b3

SHA512
ccc630395ac145f4b35d8256b6755afc94bd64d8b70c2e6552feb67d198395e04122c703d7a83dc589e49da08c9baf7b9bad2cdeeaba2a90f08f8940d7a7355e

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1zt58xM1.exe

Filesize
1.8MB

MD5
0f6d1dbcedb9ea95652c02ee4a517dc2

SHA1
757a9f6b6d1781ef891bf4f6d0d53b644a9dec75

SHA256
7df9cabc2bf70d4ee80db6512e64bc862324219537369c5c50bd1c480947cc37

SHA512
a941eeffd343656167d681e6b5ad34586fbaec63ad09ddeb6d2ff42c7d0c0997ab45249a170f8a1055055d6223a815274cad7b392d78c9733c748a5842dd43b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\1zt58xM1.exe

Filesize
1.8MB

MD5
0f6d1dbcedb9ea95652c02ee4a517dc2

SHA1
757a9f6b6d1781ef891bf4f6d0d53b644a9dec75

SHA256
7df9cabc2bf70d4ee80db6512e64bc862324219537369c5c50bd1c480947cc37

SHA512
a941eeffd343656167d681e6b5ad34586fbaec63ad09ddeb6d2ff42c7d0c0997ab45249a170f8a1055055d6223a815274cad7b392d78c9733c748a5842dd43b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2pL979Xs.exe

Filesize
230KB

MD5
a6dd948b160d92b4cab3fadec3fc4a2a

SHA1
42e44dde370c72746cc207b0b0123e234807187c

SHA256
e5d2e70d55779bbd814bdcea1ab41948961e73a41a0a840a4d015c65e05bb7fc

SHA512
a2d76c5017d25c47ad71fa81424cfa02a6073f757b73ab3199da7a18ec8f804ac6cea20ee3b76d5e961fca99dc8583f5023aa01d05ec8b94ff35bd55b36ceb68

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP004.TMP\2pL979Xs.exe

Filesize
230KB

MD5
a6dd948b160d92b4cab3fadec3fc4a2a

SHA1
42e44dde370c72746cc207b0b0123e234807187c

SHA256
e5d2e70d55779bbd814bdcea1ab41948961e73a41a0a840a4d015c65e05bb7fc

SHA512
a2d76c5017d25c47ad71fa81424cfa02a6073f757b73ab3199da7a18ec8f804ac6cea20ee3b76d5e961fca99dc8583f5023aa01d05ec8b94ff35bd55b36ceb68

Download Submit
memory/3708-46-0x0000000007790000-0x0000000007822000-memory.dmp

Filesize
584KB

Download
memory/3708-43-0x0000000000950000-0x000000000098E000-memory.dmp

Filesize
248KB

Download
memory/3708-47-0x0000000007900000-0x0000000007910000-memory.dmp

Filesize
64KB

Download
memory/3708-55-0x0000000007900000-0x0000000007910000-memory.dmp

Filesize
64KB

Download
memory/3708-48-0x0000000007730000-0x000000000773A000-memory.dmp

Filesize
40KB

Download
memory/3708-44-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/3708-45-0x0000000007CA0000-0x0000000008244000-memory.dmp

Filesize
5.6MB

Download
memory/3708-49-0x0000000008870000-0x0000000008E88000-memory.dmp

Filesize
6.1MB

Download
memory/3708-54-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/3708-53-0x0000000007A50000-0x0000000007A9C000-memory.dmp

Filesize
304KB

Download
memory/3708-52-0x0000000007A10000-0x0000000007A4C000-memory.dmp

Filesize
240KB

Download
memory/3708-50-0x0000000007B20000-0x0000000007C2A000-memory.dmp

Filesize
1.0MB

Download
memory/3708-51-0x00000000078A0000-0x00000000078B2000-memory.dmp

Filesize
72KB

Download
memory/3852-36-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3852-39-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3852-35-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3852-37-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads