mystic | 02823891542cf133fd6221e12a2abbd77b80b2e06304eb95a0821887c96823b1

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
10/11/2023, 11:10

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General

Target
file.exe
Size 511KB
Sample231110-m9pkgafa5x
SHA256 02823891542cf133fd6221e12a2abbd77b80b2e06304eb95a0821887c96823b1
MD5 d9cea0b7e39fa314adaa190dcd132835
SHA1 be3b65b12b09d50036b0d8dd1212e9afbf5b5b22
SHA512 35298703093d50ee2dd5dd5820293e45ae923c0b0e022447e497069fc6be4f210d6f78671ebbe1319701629dcf9a39ff40ce525d7e4d18940ab29bbe8e2fdad9
SSDEEP 12288:OMrby90V0S2OhbGUwjMaY8TUs2luE+4+wSRMFDP8eyDL:lygbjaYSz2lurUS2lgDL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

mystic redline taiga infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

taiga

5.42.92.51:19057

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral1/memory/2572-14-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/2572-15-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/2572-16-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/2572-18-0x0000000000400000-0x0000000000433000-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 1 IoCs

resource	yara_rule
behavioral1/memory/756-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\Control Panel\International\Geo\Nation	5cD59WN.exe

Executes dropped EXE 4 IoCs

pid	Process
4924	RA8nj27.exe
4900	3oR176oZ.exe
1968	4gP5UR4.exe
4788	5cD59WN.exe

Adds Run key to start application 2 TTPs 2 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\\\""	file.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\\\""	RA8nj27.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4900 set thread context of 2572	4900	3oR176oZ.exe	93
PID 1968 set thread context of 756	1968	4gP5UR4.exe	98

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5088	2572	WerFault.exe	93

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 4924	3440	file.exe	87
PID 3440 wrote to memory of 4924	3440	file.exe	87
PID 3440 wrote to memory of 4924	3440	file.exe	87
PID 4924 wrote to memory of 4900	4924	RA8nj27.exe	88
PID 4924 wrote to memory of 4900	4924	RA8nj27.exe	88
PID 4924 wrote to memory of 4900	4924	RA8nj27.exe	88
PID 4900 wrote to memory of 3748	4900	3oR176oZ.exe	91
PID 4900 wrote to memory of 3748	4900	3oR176oZ.exe	91
PID 4900 wrote to memory of 3748	4900	3oR176oZ.exe	91
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4900 wrote to memory of 2572	4900	3oR176oZ.exe	93
PID 4924 wrote to memory of 1968	4924	RA8nj27.exe	94
PID 4924 wrote to memory of 1968	4924	RA8nj27.exe	94
PID 4924 wrote to memory of 1968	4924	RA8nj27.exe	94
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 1968 wrote to memory of 756	1968	4gP5UR4.exe	98
PID 3440 wrote to memory of 4788	3440	file.exe	100
PID 3440 wrote to memory of 4788	3440	file.exe	100
PID 3440 wrote to memory of 4788	3440	file.exe	100
PID 4788 wrote to memory of 3168	4788	5cD59WN.exe	101
PID 4788 wrote to memory of 3168	4788	5cD59WN.exe	101
PID 4788 wrote to memory of 3168	4788	5cD59WN.exe	101

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\RA8nj27.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\RA8nj27.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4924
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3oR176oZ.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3oR176oZ.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4900
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3748
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:2572
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2572 -s 540
        5⤵
        Program crash
        
        PID:5088
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4gP5UR4.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4gP5UR4.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1968
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:756
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5cD59WN.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5cD59WN.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4788
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "
    3⤵
    PID:3168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2572 -ip 2572
1⤵
PID:996

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

5cD59WN.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5cD59WN.exe
Size 73KB
SHA256 aac74a07e386e5aa60b13f002e3ad37f09ed0fafdc9db5d5a1cb8781e82c121f
MD5 532bd4385f3d06efb962cb5736cd7f73
SHA1 eb9941a22760b6f24da449144b5731ff33805316
SHA512 18671238c41540123aafd2f9b5d9ddea839e8d6a9796418e2fdfb052708d5408d055ca9d7c9b227683646f0749d2d0118f2ba830b2d1220b5001ad036b0f5bc7
SSDEEP 1536:5bIqfS0bO7B7wTewJk9WeBLYVrx8AA0oL:5Rfet7wTewJk9lSCj0oL
MD5 SHA1 SHA512 SSDEEP

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5cD59WN.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5cD59WN.exe
Size 73KB
SHA256 aac74a07e386e5aa60b13f002e3ad37f09ed0fafdc9db5d5a1cb8781e82c121f
MD5 532bd4385f3d06efb962cb5736cd7f73
SHA1 eb9941a22760b6f24da449144b5731ff33805316
SHA512 18671238c41540123aafd2f9b5d9ddea839e8d6a9796418e2fdfb052708d5408d055ca9d7c9b227683646f0749d2d0118f2ba830b2d1220b5001ad036b0f5bc7
SSDEEP 1536:5bIqfS0bO7B7wTewJk9WeBLYVrx8AA0oL:5Rfet7wTewJk9lSCj0oL
MD5 SHA1 SHA512 SSDEEP

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RA8nj27.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\RA8nj27.exe
Size 389KB
SHA256 00d67de5947557ec42ba05c5f461f0a7d4deb31cd28c61fe88ffd5881270e1c0
MD5 0e5307c09413cd0530c629de4c046d69
SHA1 5421a068a02b8e8f4363a0b9ef0b6ef090c3fe1d
SHA512 5f6b36780460d9595d097894c91952e5fe8c4025c251108a1f8bfdb5b8eda21b93f0b3f64a4855db28b3ea54f9822b5f43921127b998ffa26baf01a66e1e43b4
SSDEEP 12288:2Mrfy90tFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7FG:5ygFeSDM3YRz2WuHUSooI043qG
MD5 SHA1 SHA512 SSDEEP

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RA8nj27.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\RA8nj27.exe
Size 389KB
SHA256 00d67de5947557ec42ba05c5f461f0a7d4deb31cd28c61fe88ffd5881270e1c0
MD5 0e5307c09413cd0530c629de4c046d69
SHA1 5421a068a02b8e8f4363a0b9ef0b6ef090c3fe1d
SHA512 5f6b36780460d9595d097894c91952e5fe8c4025c251108a1f8bfdb5b8eda21b93f0b3f64a4855db28b3ea54f9822b5f43921127b998ffa26baf01a66e1e43b4
SSDEEP 12288:2Mrfy90tFeSD9i3YJTUs2Wug+4+wS7EFut60WtNV/c7FG:5ygFeSDM3YRz2WuHUSooI043qG
MD5 SHA1 SHA512 SSDEEP

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3oR176oZ.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3oR176oZ.exe
Size 300KB
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
SSDEEP 6144:2Y7w4esWRaIsFwQpsUM0EIsZTY+GhH7gaWQ3org/pz:2Y7w4eOFQRVhFi70rg/pz
MD5 SHA1 SHA512 SSDEEP

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3oR176oZ.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3oR176oZ.exe
Size 300KB
SHA256 1025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
MD5 784667bb96ccb30c4cf44f2c5f493769
SHA1 28185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA512 62c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
SSDEEP 6144:2Y7w4esWRaIsFwQpsUM0EIsZTY+GhH7gaWQ3org/pz:2Y7w4eOFQRVhFi70rg/pz
MD5 SHA1 SHA512 SSDEEP

Submit Download

4gP5UR4.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4gP5UR4.exe
Size 339KB
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
SSDEEP 6144:0Gj04eA5qag/twYGi1AgAvoJqu4oAFQtEN2Vorg/pz:0Gj04eVCtvoJqu8FQGN2Wrg/pz
MD5 SHA1 SHA512 SSDEEP

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4gP5UR4.exe

Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4gP5UR4.exe
Size 339KB
SHA256 e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
MD5 14d9834611ad581afcfea061652ff6cb
SHA1 802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA512 cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
SSDEEP 6144:0Gj04eA5qag/twYGi1AgAvoJqu4oAFQtEN2Vorg/pz:0Gj04eVCtvoJqu8FQGN2Wrg/pz
MD5 SHA1 SHA512 SSDEEP

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is64.bat

Path C:\Users\Admin\AppData\Local\Temp\is64.bat
Size 181B
SHA256 e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
MD5 225edee1d46e0a80610db26b275d72fb
SHA1 ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA512 4f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504
MD5 SHA1 SHA512

Submit Download

is64.txt

Path C:\Users\Admin\AppData\Local\Temp\is64.txt
Size 3B
SHA256 f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
MD5 a5ea0ad9260b1550a14cc58d2c39b03d
SHA1 f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA512 7c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74
MD5 SHA1 SHA512

Submit Download

memory/756-41-0x0000000007760000-0x0000000007772000-memory.dmp

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memory/756-38-0x0000000007690000-0x000000000769A000-memory.dmp

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memory/756-45-0x0000000007680000-0x0000000007690000-memory.dmp

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memory/756-28-0x0000000074080000-0x0000000074830000-memory.dmp

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memory/756-30-0x00000000079A0000-0x0000000007F44000-memory.dmp

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memory/756-32-0x00000000074D0000-0x0000000007562000-memory.dmp

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memory/756-33-0x0000000007680000-0x0000000007690000-memory.dmp

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memory/756-44-0x0000000074080000-0x0000000074830000-memory.dmp

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memory/756-43-0x0000000007940000-0x000000000798C000-memory.dmp

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memory/756-39-0x0000000008570000-0x0000000008B88000-memory.dmp

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memory/756-42-0x00000000077C0000-0x00000000077FC000-memory.dmp

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memory/756-40-0x0000000007830000-0x000000000793A000-memory.dmp

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memory/756-22-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2572-14-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/2572-18-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/2572-15-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/2572-16-0x0000000000400000-0x0000000000433000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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