mystic | 980b0532bf7508e78c9ace1ef315105a76ed8dfd6f19d0417c5116cbe94c0fc3

General

Target

NEAS.e358b45fd5d749157a0dab83f8487130.exe
Size

400KB
MD5

e358b45fd5d749157a0dab83f8487130
SHA1

761d0d798b508382d03d6d6bf3282020969c085f
SHA256

980b0532bf7508e78c9ace1ef315105a76ed8dfd6f19d0417c5116cbe94c0fc3
SHA512

5fbe898d6b5836a07bf8fcfed9601f51991275cc5f23690f43c98560a93a89f1942fa0dba39f1a7953afd155e1c68a7b55a90da4e230df797a8e8079c4753c54
SSDEEP

6144:KVy+bnr+Bp0yN90QElMw4UFYvVSlvUdgqA5OLQJHNRjX3a41KSnThPCOgy:PMrVy90/4UF3viS5OL43XKHS9Chy

Score

10^/10

mystic redline taiga infostealer persistence stealer

Malware Config

Extracted

Family

redline

Botnet

taiga

C2

5.42.92.51:19057

Signatures

Detect Mystic stealer payload 4 IoCs

resource	yara_rule
behavioral1/memory/1284-7-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1284-9-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1284-11-0x0000000000400000-0x0000000000433000-memory.dmp	mystic_family
behavioral1/memory/1284-8-0x0000000000400000-0x0000000000433000-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/4796-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

pid	Process
4960	3bd934uq.exe
1752	4Lg4CB6.exe

Adds Run key to start application 2 TTPs 1 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\\\""	NEAS.e358b45fd5d749157a0dab83f8487130.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4960 set thread context of 1284	4960	3bd934uq.exe	89
PID 1752 set thread context of 4796	1752	4Lg4CB6.exe	96

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3956	1284	WerFault.exe	89

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 4960	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	88
PID 4232 wrote to memory of 4960	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	88
PID 4232 wrote to memory of 4960	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	88
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4960 wrote to memory of 1284	4960	3bd934uq.exe	89
PID 4232 wrote to memory of 1752	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	92
PID 4232 wrote to memory of 1752	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	92
PID 4232 wrote to memory of 1752	4232	NEAS.e358b45fd5d749157a0dab83f8487130.exe	92
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96
PID 1752 wrote to memory of 4796	1752	4Lg4CB6.exe	96

C:\Users\Admin\AppData\Local\Temp\NEAS.e358b45fd5d749157a0dab83f8487130.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.e358b45fd5d749157a0dab83f8487130.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3bd934uq.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3bd934uq.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4960
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:1284
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 540
      4⤵
      Program crash
      PID:3956
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Lg4CB6.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Lg4CB6.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
    3⤵
    PID:4796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1284 -ip 1284
1⤵
PID:3660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3bd934uq.exe

Filesize
319KB

MD5
4a868c16482f0ab8800d3f1eff627a9b

SHA1
c4527bdfb9929627534ca2299d858757e243bbe2

SHA256
bda2de9cf44b5c317144c8eef0e229740fda2b537e8c233c1d2117c6942ac3ee

SHA512
cc1cfeb3591ecb3d48783f5710dc0bbbe03273f778cec76ba42eb3194f6f8b84e100f73b8ba4fdab49c1c626ac73006de62d327ec5759c0015e1895456f12f10

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\3bd934uq.exe

Filesize
319KB

MD5
4a868c16482f0ab8800d3f1eff627a9b

SHA1
c4527bdfb9929627534ca2299d858757e243bbe2

SHA256
bda2de9cf44b5c317144c8eef0e229740fda2b537e8c233c1d2117c6942ac3ee

SHA512
cc1cfeb3591ecb3d48783f5710dc0bbbe03273f778cec76ba42eb3194f6f8b84e100f73b8ba4fdab49c1c626ac73006de62d327ec5759c0015e1895456f12f10

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Lg4CB6.exe

Filesize
358KB

MD5
208775d53d5962c2646324462f33c659

SHA1
fe220fbe4b9ee76e2f16d3612893c163136ece4e

SHA256
7825250a68803aaab13abd864eeb95573ada5acc6605b25239eee1dbbd0ba42c

SHA512
d346cf7ac9d69acceb7a72b4ea1834432eb906cb93217e2b5213fedfd0664c8069e62c72c69a96e3f866e84cfd68545ccf594d269079b86bb0b3fa1f152403fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4Lg4CB6.exe

Filesize
358KB

MD5
208775d53d5962c2646324462f33c659

SHA1
fe220fbe4b9ee76e2f16d3612893c163136ece4e

SHA256
7825250a68803aaab13abd864eeb95573ada5acc6605b25239eee1dbbd0ba42c

SHA512
d346cf7ac9d69acceb7a72b4ea1834432eb906cb93217e2b5213fedfd0664c8069e62c72c69a96e3f866e84cfd68545ccf594d269079b86bb0b3fa1f152403fe

Download Submit
memory/1284-7-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1284-9-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1284-11-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1284-8-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4796-17-0x0000000008040000-0x00000000085E4000-memory.dmp

Filesize
5.6MB

Download
memory/4796-16-0x0000000074080000-0x0000000074830000-memory.dmp

Filesize
7.7MB

Download
memory/4796-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4796-18-0x0000000007B50000-0x0000000007BE2000-memory.dmp

Filesize
584KB

Download
memory/4796-19-0x0000000074080000-0x0000000074830000-memory.dmp

Filesize
7.7MB

Download
memory/4796-20-0x0000000007C80000-0x0000000007C90000-memory.dmp

Filesize
64KB

Download
memory/4796-21-0x0000000007C20000-0x0000000007C2A000-memory.dmp

Filesize
40KB

Download
memory/4796-22-0x0000000008C10000-0x0000000009228000-memory.dmp

Filesize
6.1MB

Download
memory/4796-23-0x0000000007EC0000-0x0000000007FCA000-memory.dmp

Filesize
1.0MB

Download
memory/4796-24-0x0000000007DF0000-0x0000000007E02000-memory.dmp

Filesize
72KB

Download
memory/4796-25-0x0000000007E50000-0x0000000007E8C000-memory.dmp

Filesize
240KB

Download
memory/4796-26-0x0000000007FD0000-0x000000000801C000-memory.dmp

Filesize
304KB

Download
memory/4796-27-0x0000000007C80000-0x0000000007C90000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads