5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a

Analysis

max time kernel
84s
max time network
74s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20/10/2022, 05:26

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General

Target

5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
Size

491KB
MD5

80130c101ff5f1240f558f17fc88954f
SHA1

0c562b526f7b3fd9150a130f2b1f338af77df5a0
SHA256

5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a
SHA512

00b59f1a196685a10d757ff41e958ca84b16f7d529649bf14294a9653969a484e51b51d778009daab04c7c6630a41892412d11578435974f14f473bef0fa8c98
SSDEEP

12288:HWykaDd6riR6QmzG2gSiIQIHlJtXHGO9PVChaNuLO0a0bwHII:P2Nfb6bwH

Score

10^/10

bootkit evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	jekor.exe

Executes dropped EXE 5 IoCs

pid	Process
1920	ppK1Ml6Ir8.exe
1452	pp.exe
1336	ppp.exe
1972	pppp.exe
1844	jekor.exe

Loads dropped DLL 9 IoCs

pid	Process
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
1920	ppK1Ml6Ir8.exe
1920	ppK1Ml6Ir8.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	jekor.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jekor = "C:\\Users\\Admin\\jekor.exe /u"	jekor.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\physicaldrive0	pp.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1660	tasklist.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1920	ppK1Ml6Ir8.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe
1844	jekor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1452	pp.exe
Token: SeDebugPrivilege	1660	tasklist.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1972	pppp.exe
1920	ppK1Ml6Ir8.exe
1972	pppp.exe
1972	pppp.exe
1844	jekor.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1920	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	26
PID 1416 wrote to memory of 1920	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	26
PID 1416 wrote to memory of 1920	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	26
PID 1416 wrote to memory of 1920	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	26
PID 1416 wrote to memory of 1452	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	27
PID 1416 wrote to memory of 1452	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	27
PID 1416 wrote to memory of 1452	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	27
PID 1416 wrote to memory of 1452	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	27
PID 1416 wrote to memory of 1336	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	28
PID 1416 wrote to memory of 1336	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	28
PID 1416 wrote to memory of 1336	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	28
PID 1416 wrote to memory of 1336	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	28
PID 1416 wrote to memory of 1972	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	29
PID 1416 wrote to memory of 1972	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	29
PID 1416 wrote to memory of 1972	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	29
PID 1416 wrote to memory of 1972	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	29
PID 1416 wrote to memory of 1076	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	30
PID 1416 wrote to memory of 1076	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	30
PID 1416 wrote to memory of 1076	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	30
PID 1416 wrote to memory of 1076	1416	5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe	30
PID 1920 wrote to memory of 1844	1920	ppK1Ml6Ir8.exe	32
PID 1920 wrote to memory of 1844	1920	ppK1Ml6Ir8.exe	32
PID 1920 wrote to memory of 1844	1920	ppK1Ml6Ir8.exe	32
PID 1920 wrote to memory of 1844	1920	ppK1Ml6Ir8.exe	32
PID 1336 wrote to memory of 1776	1336	ppp.exe	33
PID 1336 wrote to memory of 1776	1336	ppp.exe	33
PID 1336 wrote to memory of 1776	1336	ppp.exe	33
PID 1336 wrote to memory of 1776	1336	ppp.exe	33
PID 1920 wrote to memory of 648	1920	ppK1Ml6Ir8.exe	34
PID 1920 wrote to memory of 648	1920	ppK1Ml6Ir8.exe	34
PID 1920 wrote to memory of 648	1920	ppK1Ml6Ir8.exe	34
PID 1920 wrote to memory of 648	1920	ppK1Ml6Ir8.exe	34
PID 648 wrote to memory of 1660	648	cmd.exe	37
PID 648 wrote to memory of 1660	648	cmd.exe	37
PID 648 wrote to memory of 1660	648	cmd.exe	37
PID 648 wrote to memory of 1660	648	cmd.exe	37
PID 1844 wrote to memory of 1660	1844	jekor.exe	37
PID 1844 wrote to memory of 1660	1844	jekor.exe	37

C:\Users\Admin\AppData\Local\Temp\5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
"C:\Users\Admin\AppData\Local\Temp\5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\ppK1Ml6Ir8.exe
  ppK1Ml6Ir8.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Users\Admin\jekor.exe
    "C:\Users\Admin\jekor.exe"
    3⤵
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1844
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c tasklist&&del ppK1Ml6Ir8.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:648
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:1660
- C:\Users\Admin\pp.exe
  pp.exe
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of AdjustPrivilegeToken
  PID:1452
- C:\Users\Admin\ppp.exe
  ppp.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1336
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /q /c "C:\Users\Admin\AppData\Local\Temp\Uvj..bat" > nul 2> nul
    3⤵
    PID:1776
- C:\Users\Admin\pppp.exe
  pppp.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1972
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del 5743508fb34135a98cea3d63a86ff31cf65e33003b4b5f568dd65ac2cb1a250a.exe
  2⤵
  PID:1076

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Uvj..bat

Filesize
114B

MD5
5f46f6e2f0d552f95510a9ad853d113f

SHA1
000aa0e08264f640ec3de564bd1849d319dba3d7

SHA256
5d477c9b692b3fe9e3bf0eddbf866d82cd0ff2ab55e234264222fd6627a9daec

SHA512
f1c8bf020925c2a3ec094045717fe3c58ceee3c4c09061d7ee211676fafdd1f4640e236144cd1daa3bd9f21e7177dd5ba907e511e0e64c98933d9ee2bfa43417

Download Submit
C:\Users\Admin\jekor.exe

Filesize
244KB

MD5
10beede70ac1579f3356b3ac9c35acc7

SHA1
847c45dbb1ec821c9d323dcad30e88d6663b3408

SHA256
adf792b4e4df6ed06ba571f32bd200c9f5ccce40a59fb03b258e0b7517d4c88c

SHA512
2856ea5a25a0870b21b7ab69f642fba8bbe2eba923488f8ef48192121863e89522ac08238c43134ecad261eb2534a03d94973362a98e1d7a09abc0f66c034f6f

Download Submit
C:\Users\Admin\jekor.exe

Filesize
244KB

MD5
10beede70ac1579f3356b3ac9c35acc7

SHA1
847c45dbb1ec821c9d323dcad30e88d6663b3408

SHA256
adf792b4e4df6ed06ba571f32bd200c9f5ccce40a59fb03b258e0b7517d4c88c

SHA512
2856ea5a25a0870b21b7ab69f642fba8bbe2eba923488f8ef48192121863e89522ac08238c43134ecad261eb2534a03d94973362a98e1d7a09abc0f66c034f6f

Download Submit
C:\Users\Admin\pp.exe

Filesize
141KB

MD5
007a58eb126df3f5ce9985d7d383e5a1

SHA1
60df7dacc7046b23faf8d54ca11140ec32e28390

SHA256
83baee88343d067d994966ee37bef1ff2dbb3c225987172744180ab1ba9edbc9

SHA512
a248d164916f0c3fb0b55b74d9c7cedbef61594aab89215ae22d526e8f5d11f8c7457f8152b12554e1cf5418fb2b566185b83a89dffe59bed51a35313aabc1ff

Download Submit
C:\Users\Admin\pp.exe

Filesize
141KB

MD5
007a58eb126df3f5ce9985d7d383e5a1

SHA1
60df7dacc7046b23faf8d54ca11140ec32e28390

SHA256
83baee88343d067d994966ee37bef1ff2dbb3c225987172744180ab1ba9edbc9

SHA512
a248d164916f0c3fb0b55b74d9c7cedbef61594aab89215ae22d526e8f5d11f8c7457f8152b12554e1cf5418fb2b566185b83a89dffe59bed51a35313aabc1ff

Download Submit
C:\Users\Admin\ppK1Ml6Ir8.exe

Filesize
244KB

MD5
d2e22c8ee513482a81cc59d05110edee

SHA1
f49b9b567bcc3044fbc729b3314c7e6d2fac4799

SHA256
6da9ecae5de6d68f0d3000a4b0448b0b55f2daa66671f9d24f86211270e88c34

SHA512
f420631e02c8eee19c80746c5e04c7c705f0fb871dc6c86255922c925d8586d246306e9ff23c520e709b814818f5817090d1fc5d450d5c9b5434e23624da0a3a

Download Submit
C:\Users\Admin\ppK1Ml6Ir8.exe

Filesize
244KB

MD5
d2e22c8ee513482a81cc59d05110edee

SHA1
f49b9b567bcc3044fbc729b3314c7e6d2fac4799

SHA256
6da9ecae5de6d68f0d3000a4b0448b0b55f2daa66671f9d24f86211270e88c34

SHA512
f420631e02c8eee19c80746c5e04c7c705f0fb871dc6c86255922c925d8586d246306e9ff23c520e709b814818f5817090d1fc5d450d5c9b5434e23624da0a3a

Download Submit
C:\Users\Admin\ppp.exe

Filesize
93KB

MD5
002d859134b23c7570ccef3a13f60593

SHA1
f0d396982899cdb845b6659d731ad4b7443d19b9

SHA256
e761e1a730a5ae34cf8e166d7e6525bcef5be6dc637bb833044c6b006823e843

SHA512
fc683779dab577cec82bc2263979c365798fa98b2f31eb13eae39f66d1bd3f2856d8b6a1b5abe5c9ad755cbdba9a7e7dcb2e78d8a14e94cb9cea7906c7f83e45

Download Submit
C:\Users\Admin\ppp.exe

Filesize
93KB

MD5
002d859134b23c7570ccef3a13f60593

SHA1
f0d396982899cdb845b6659d731ad4b7443d19b9

SHA256
e761e1a730a5ae34cf8e166d7e6525bcef5be6dc637bb833044c6b006823e843

SHA512
fc683779dab577cec82bc2263979c365798fa98b2f31eb13eae39f66d1bd3f2856d8b6a1b5abe5c9ad755cbdba9a7e7dcb2e78d8a14e94cb9cea7906c7f83e45

Download Submit
C:\Users\Admin\pppp.exe

Filesize
124KB

MD5
b5819bd27a05bd8a5e464af3f8028607

SHA1
c66b3b79b217a709190f407f4fe330e342408e8f

SHA256
eefb780f0939a951dc575b5a863d9bfb47e247e47d6f25380ed00c47119928c6

SHA512
87d5aac4c5aefadaba621cb5f1a370e4892c08b69e1ebbd5e32933e2553ce2b74430005c0a27db1f647c64cd35117bb657d67f2a9dd7eff5392f643aba962f97

Download Submit
\Users\Admin\jekor.exe

Filesize
244KB

MD5
10beede70ac1579f3356b3ac9c35acc7

SHA1
847c45dbb1ec821c9d323dcad30e88d6663b3408

SHA256
adf792b4e4df6ed06ba571f32bd200c9f5ccce40a59fb03b258e0b7517d4c88c

SHA512
2856ea5a25a0870b21b7ab69f642fba8bbe2eba923488f8ef48192121863e89522ac08238c43134ecad261eb2534a03d94973362a98e1d7a09abc0f66c034f6f

Download Submit
\Users\Admin\jekor.exe

Filesize
244KB

MD5
10beede70ac1579f3356b3ac9c35acc7

SHA1
847c45dbb1ec821c9d323dcad30e88d6663b3408

SHA256
adf792b4e4df6ed06ba571f32bd200c9f5ccce40a59fb03b258e0b7517d4c88c

SHA512
2856ea5a25a0870b21b7ab69f642fba8bbe2eba923488f8ef48192121863e89522ac08238c43134ecad261eb2534a03d94973362a98e1d7a09abc0f66c034f6f

Download Submit
\Users\Admin\pp.exe

Filesize
141KB

MD5
007a58eb126df3f5ce9985d7d383e5a1

SHA1
60df7dacc7046b23faf8d54ca11140ec32e28390

SHA256
83baee88343d067d994966ee37bef1ff2dbb3c225987172744180ab1ba9edbc9

SHA512
a248d164916f0c3fb0b55b74d9c7cedbef61594aab89215ae22d526e8f5d11f8c7457f8152b12554e1cf5418fb2b566185b83a89dffe59bed51a35313aabc1ff

Download Submit
\Users\Admin\pp.exe

Filesize
141KB

MD5
007a58eb126df3f5ce9985d7d383e5a1

SHA1
60df7dacc7046b23faf8d54ca11140ec32e28390

SHA256
83baee88343d067d994966ee37bef1ff2dbb3c225987172744180ab1ba9edbc9

SHA512
a248d164916f0c3fb0b55b74d9c7cedbef61594aab89215ae22d526e8f5d11f8c7457f8152b12554e1cf5418fb2b566185b83a89dffe59bed51a35313aabc1ff

Download Submit
\Users\Admin\ppK1Ml6Ir8.exe

Filesize
244KB

MD5
d2e22c8ee513482a81cc59d05110edee

SHA1
f49b9b567bcc3044fbc729b3314c7e6d2fac4799

SHA256
6da9ecae5de6d68f0d3000a4b0448b0b55f2daa66671f9d24f86211270e88c34

SHA512
f420631e02c8eee19c80746c5e04c7c705f0fb871dc6c86255922c925d8586d246306e9ff23c520e709b814818f5817090d1fc5d450d5c9b5434e23624da0a3a

Download Submit
\Users\Admin\ppK1Ml6Ir8.exe

Filesize
244KB

MD5
d2e22c8ee513482a81cc59d05110edee

SHA1
f49b9b567bcc3044fbc729b3314c7e6d2fac4799

SHA256
6da9ecae5de6d68f0d3000a4b0448b0b55f2daa66671f9d24f86211270e88c34

SHA512
f420631e02c8eee19c80746c5e04c7c705f0fb871dc6c86255922c925d8586d246306e9ff23c520e709b814818f5817090d1fc5d450d5c9b5434e23624da0a3a

Download Submit
\Users\Admin\ppp.exe

Filesize
93KB

MD5
002d859134b23c7570ccef3a13f60593

SHA1
f0d396982899cdb845b6659d731ad4b7443d19b9

SHA256
e761e1a730a5ae34cf8e166d7e6525bcef5be6dc637bb833044c6b006823e843

SHA512
fc683779dab577cec82bc2263979c365798fa98b2f31eb13eae39f66d1bd3f2856d8b6a1b5abe5c9ad755cbdba9a7e7dcb2e78d8a14e94cb9cea7906c7f83e45

Download Submit
\Users\Admin\pppp.exe

Filesize
124KB

MD5
b5819bd27a05bd8a5e464af3f8028607

SHA1
c66b3b79b217a709190f407f4fe330e342408e8f

SHA256
eefb780f0939a951dc575b5a863d9bfb47e247e47d6f25380ed00c47119928c6

SHA512
87d5aac4c5aefadaba621cb5f1a370e4892c08b69e1ebbd5e32933e2553ce2b74430005c0a27db1f647c64cd35117bb657d67f2a9dd7eff5392f643aba962f97

Download Submit
\Users\Admin\pppp.exe

Filesize
124KB

MD5
b5819bd27a05bd8a5e464af3f8028607

SHA1
c66b3b79b217a709190f407f4fe330e342408e8f

SHA256
eefb780f0939a951dc575b5a863d9bfb47e247e47d6f25380ed00c47119928c6

SHA512
87d5aac4c5aefadaba621cb5f1a370e4892c08b69e1ebbd5e32933e2553ce2b74430005c0a27db1f647c64cd35117bb657d67f2a9dd7eff5392f643aba962f97

Download Submit
memory/1336-80-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1336-92-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1452-75-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

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memory/1452-79-0x0000000000430000-0x0000000000530000-memory.dmp

Filesize
1024KB

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memory/1452-78-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

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