31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9

Analysis

max time kernel
36s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11/10/2022, 15:43

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General

Target

31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Size

50KB
MD5

192587ab23f6edb423aa5a5824316970
SHA1

4269603372ee6f1de947cfb401d6e9bba9e9811b
SHA256

31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9
SHA512

8ced77fa04c90be3939be69eb357ef78cc110111747b0a2ae53fad48459944672d8f74ce68f5803a628672e3122c7416611d2d2ff8d38846df35863e3eb8e653
SSDEEP

768:+i47W3UECAn2au30hUuv3i9xYgpmTATv47h7DBnJUOxWxvm2/1H5d:+vW3U3FUqFmT6vsLJUMuvmsD

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	Fnolfl32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	Fnolfl32.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	Fgjmdaik.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	Fgjmdaik.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe

Executes dropped EXE 3 IoCs

pid	Process
1928	Fnolfl32.exe
1552	Fgjmdaik.exe
1400	Fccjoall.exe

Loads dropped DLL 10 IoCs

pid	Process
904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
1928	Fnolfl32.exe
1928	Fnolfl32.exe
1552	Fgjmdaik.exe
1552	Fgjmdaik.exe
1736	WerFault.exe
1736	WerFault.exe
1736	WerFault.exe
1736	WerFault.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Deokdgoh.dll	Fnolfl32.exe
File created	C:\Windows\SysWOW64\Kpidob32.dll	Fgjmdaik.exe
File created	C:\Windows\SysWOW64\Fnolfl32.exe	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
File opened for modification	C:\Windows\SysWOW64\Fgjmdaik.exe	Fnolfl32.exe
File created	C:\Windows\SysWOW64\Fgjmdaik.exe	Fnolfl32.exe
File created	C:\Windows\SysWOW64\Fccjoall.exe	Fgjmdaik.exe
File opened for modification	C:\Windows\SysWOW64\Fccjoall.exe	Fgjmdaik.exe
File opened for modification	C:\Windows\SysWOW64\Fnolfl32.exe	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
File created	C:\Windows\SysWOW64\Opanhk32.dll	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1736	1400	WerFault.exe	29

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	Fnolfl32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	Fnolfl32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	Fgjmdaik.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Kpidob32.dll"	Fgjmdaik.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Opanhk32.dll"	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Deokdgoh.dll"	Fnolfl32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	Fgjmdaik.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1928	904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe	27
PID 904 wrote to memory of 1928	904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe	27
PID 904 wrote to memory of 1928	904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe	27
PID 904 wrote to memory of 1928	904	31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe	27
PID 1928 wrote to memory of 1552	1928	Fnolfl32.exe	28
PID 1928 wrote to memory of 1552	1928	Fnolfl32.exe	28
PID 1928 wrote to memory of 1552	1928	Fnolfl32.exe	28
PID 1928 wrote to memory of 1552	1928	Fnolfl32.exe	28
PID 1552 wrote to memory of 1400	1552	Fgjmdaik.exe	29
PID 1552 wrote to memory of 1400	1552	Fgjmdaik.exe	29
PID 1552 wrote to memory of 1400	1552	Fgjmdaik.exe	29
PID 1552 wrote to memory of 1400	1552	Fgjmdaik.exe	29
PID 1400 wrote to memory of 1736	1400	Fccjoall.exe	30
PID 1400 wrote to memory of 1736	1400	Fccjoall.exe	30
PID 1400 wrote to memory of 1736	1400	Fccjoall.exe	30
PID 1400 wrote to memory of 1736	1400	Fccjoall.exe	30

C:\Users\Admin\AppData\Local\Temp\31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe
"C:\Users\Admin\AppData\Local\Temp\31a5e9cd4a85808ba0f6371668d449adc838368f0e623e2876b8aa43ba148de9.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\Fnolfl32.exe
  C:\Windows\system32\Fnolfl32.exe
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1928
- - C:\Windows\SysWOW64\Fgjmdaik.exe
    C:\Windows\system32\Fgjmdaik.exe
    3⤵
    - Adds autorun key to be loaded by Explorer.exe on startup
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in System32 directory
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\SysWOW64\Fccjoall.exe
      C:\Windows\system32\Fccjoall.exe
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1400
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 140
        5⤵
        Loads dropped DLL
        Program crash
        
        PID:1736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
C:\Windows\SysWOW64\Fgjmdaik.exe

Filesize
50KB

MD5
e9b064953a3376ff3706a9e715d52c0e

SHA1
427dfcce23b4088f111c03873de6e0bcc1dddcb4

SHA256
7a9f7273c3d9cc2c11fc32b955677508ec9e1d47f1c5de6107494f120dd6269c

SHA512
7b2d8b15aaccba811dc86fd965986b436ad5a83fe8352f73333222cce2ef4cc0b676c1540daf1deb41bbec907a3cc75118cd0276c2684b7d1901e4abc22f2306

Download Submit
C:\Windows\SysWOW64\Fgjmdaik.exe

Filesize
50KB

MD5
e9b064953a3376ff3706a9e715d52c0e

SHA1
427dfcce23b4088f111c03873de6e0bcc1dddcb4

SHA256
7a9f7273c3d9cc2c11fc32b955677508ec9e1d47f1c5de6107494f120dd6269c

SHA512
7b2d8b15aaccba811dc86fd965986b436ad5a83fe8352f73333222cce2ef4cc0b676c1540daf1deb41bbec907a3cc75118cd0276c2684b7d1901e4abc22f2306

Download Submit
C:\Windows\SysWOW64\Fnolfl32.exe

Filesize
50KB

MD5
1319ef1790f6af4f63a9add2c6d940c2

SHA1
e11751c6cff61d7b73cd00002f7099e3431bfe22

SHA256
66c23c0a624843aa6331611246ab5016c3ad13f03c954f6019c9032868dc96b4

SHA512
ee1d268cb76037736e3571222f3642d15eb8925d809af8ee876b756eb77a35e4d30cf94dab5825e9777bdac6f93b01a048d1946899fc2bc1d8d55ba57e10b4d6

Download Submit
C:\Windows\SysWOW64\Fnolfl32.exe

Filesize
50KB

MD5
1319ef1790f6af4f63a9add2c6d940c2

SHA1
e11751c6cff61d7b73cd00002f7099e3431bfe22

SHA256
66c23c0a624843aa6331611246ab5016c3ad13f03c954f6019c9032868dc96b4

SHA512
ee1d268cb76037736e3571222f3642d15eb8925d809af8ee876b756eb77a35e4d30cf94dab5825e9777bdac6f93b01a048d1946899fc2bc1d8d55ba57e10b4d6

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fccjoall.exe

Filesize
50KB

MD5
99e42536140082c64fddf314152cbd89

SHA1
d65bb0a3d5b33184a3f1f46e36ad5d5743d98edb

SHA256
a8d85b138371f6a9badaff5b5e733aeafb17beca74962b792a645f9623b542ec

SHA512
f9fcb3252c33b6788f6c491adf5ce9db91c30d4c453a97452fe02b193db07c59e9fb31794708d60db0208540193b6291f53f863ea82ecb9ffb6ad73fb4d9d5fe

Download Submit
\Windows\SysWOW64\Fgjmdaik.exe

Filesize
50KB

MD5
e9b064953a3376ff3706a9e715d52c0e

SHA1
427dfcce23b4088f111c03873de6e0bcc1dddcb4

SHA256
7a9f7273c3d9cc2c11fc32b955677508ec9e1d47f1c5de6107494f120dd6269c

SHA512
7b2d8b15aaccba811dc86fd965986b436ad5a83fe8352f73333222cce2ef4cc0b676c1540daf1deb41bbec907a3cc75118cd0276c2684b7d1901e4abc22f2306

Download Submit
\Windows\SysWOW64\Fgjmdaik.exe

Filesize
50KB

MD5
e9b064953a3376ff3706a9e715d52c0e

SHA1
427dfcce23b4088f111c03873de6e0bcc1dddcb4

SHA256
7a9f7273c3d9cc2c11fc32b955677508ec9e1d47f1c5de6107494f120dd6269c

SHA512
7b2d8b15aaccba811dc86fd965986b436ad5a83fe8352f73333222cce2ef4cc0b676c1540daf1deb41bbec907a3cc75118cd0276c2684b7d1901e4abc22f2306

Download Submit
\Windows\SysWOW64\Fnolfl32.exe

Filesize
50KB

MD5
1319ef1790f6af4f63a9add2c6d940c2

SHA1
e11751c6cff61d7b73cd00002f7099e3431bfe22

SHA256
66c23c0a624843aa6331611246ab5016c3ad13f03c954f6019c9032868dc96b4

SHA512
ee1d268cb76037736e3571222f3642d15eb8925d809af8ee876b756eb77a35e4d30cf94dab5825e9777bdac6f93b01a048d1946899fc2bc1d8d55ba57e10b4d6

Download Submit
\Windows\SysWOW64\Fnolfl32.exe

Filesize
50KB

MD5
1319ef1790f6af4f63a9add2c6d940c2

SHA1
e11751c6cff61d7b73cd00002f7099e3431bfe22

SHA256
66c23c0a624843aa6331611246ab5016c3ad13f03c954f6019c9032868dc96b4

SHA512
ee1d268cb76037736e3571222f3642d15eb8925d809af8ee876b756eb77a35e4d30cf94dab5825e9777bdac6f93b01a048d1946899fc2bc1d8d55ba57e10b4d6

Download Submit
memory/904-74-0x0000000000220000-0x0000000000251000-memory.dmp

Filesize
196KB

Download
memory/904-73-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1400-77-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1552-76-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1928-75-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download