f9833761752945fa7c981f25887d32c0d65e058b06ad50531f1364f410ef1e2e

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 21:40

Sharing

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General

Target

91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Size

128KB
MD5

91e41f7ba3a86893d5a8b0ff8a293e58
SHA1

30da8b7fbd93e076e4d4b5a142dff692c8394801
SHA256

f9833761752945fa7c981f25887d32c0d65e058b06ad50531f1364f410ef1e2e
SHA512

825ad1bfd08338c643554e8f36d00bb70d66012839e1019a978600b0e8dfbb2e8e5b701bf15df973f17c24cc545c2edb3c381571ceed93b5f28bd8028ff6c6a2
SSDEEP

3072:AquOtqN+2RVIj+f7+/P3Mo6EeiSJdEN0s4WE+3S9pui6yYPaI7DX:A7EUVIAW143ENm+3Mpui6yYPaI/

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

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	Fjaonpnn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79ECA078-17FF-726B-E811-213280E5C831}"	Fjaonpnn.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79ECA078-17FF-726B-E811-213280E5C831}"	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	Ejobhppq.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79ECA078-17FF-726B-E811-213280E5C831}"	Ejobhppq.exe

Executes dropped EXE 3 IoCs

pid	Process
1304	Ejobhppq.exe
2752	Fjaonpnn.exe
2620	Fkckeh32.exe

Loads dropped DLL 10 IoCs

pid	Process
2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
1304	Ejobhppq.exe
1304	Ejobhppq.exe
2752	Fjaonpnn.exe
2752	Fjaonpnn.exe
2524	WerFault.exe
2524	WerFault.exe
2524	WerFault.exe
2524	WerFault.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Ekgednng.dll	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
File created	C:\Windows\SysWOW64\Fkckeh32.exe	Fjaonpnn.exe
File opened for modification	C:\Windows\SysWOW64\Fkckeh32.exe	Fjaonpnn.exe
File created	C:\Windows\SysWOW64\Clkmne32.dll	Fjaonpnn.exe
File created	C:\Windows\SysWOW64\Ejobhppq.exe	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
File opened for modification	C:\Windows\SysWOW64\Ejobhppq.exe	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
File created	C:\Windows\SysWOW64\Hoogfn32.dll	Ejobhppq.exe
File created	C:\Windows\SysWOW64\Fjaonpnn.exe	Ejobhppq.exe
File opened for modification	C:\Windows\SysWOW64\Fjaonpnn.exe	Ejobhppq.exe

Program crash 1 IoCs

pid	pid_target	Process
2524	2620	WerFault.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ = "C:\\Windows\\SysWow64\\Ekgednng.dll"	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ = "C:\\Windows\\SysWow64\\Hoogfn32.dll"	Ejobhppq.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ThreadingModel = "Apartment"	Fjaonpnn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ThreadingModel = "Apartment"	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32	Ejobhppq.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ThreadingModel = "Apartment"	Ejobhppq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32	Fjaonpnn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79ECA078-17FF-726B-E811-213280E5C831}\InProcServer32\ = "C:\\Windows\\SysWow64\\Clkmne32.dll"	Fjaonpnn.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 1304	2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe	28
PID 2120 wrote to memory of 1304	2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe	28
PID 2120 wrote to memory of 1304	2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe	28
PID 2120 wrote to memory of 1304	2120	91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe	28
PID 1304 wrote to memory of 2752	1304	Ejobhppq.exe	31
PID 1304 wrote to memory of 2752	1304	Ejobhppq.exe	31
PID 1304 wrote to memory of 2752	1304	Ejobhppq.exe	31
PID 1304 wrote to memory of 2752	1304	Ejobhppq.exe	31
PID 2752 wrote to memory of 2620	2752	Fjaonpnn.exe	30
PID 2752 wrote to memory of 2620	2752	Fjaonpnn.exe	30
PID 2752 wrote to memory of 2620	2752	Fjaonpnn.exe	30
PID 2752 wrote to memory of 2620	2752	Fjaonpnn.exe	30
PID 2620 wrote to memory of 2524	2620	Fkckeh32.exe	29
PID 2620 wrote to memory of 2524	2620	Fkckeh32.exe	29
PID 2620 wrote to memory of 2524	2620	Fkckeh32.exe	29
PID 2620 wrote to memory of 2524	2620	Fkckeh32.exe	29

C:\Users\Admin\AppData\Local\Temp\91e41f7ba3a86893d5a8b0ff8a293e58_JC.exe
"C:\Users\Admin\AppData\Local\Temp\91e41f7ba3a86893d5a8b0ff8a293e58_JC.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:2120
- C:\Windows\SysWOW64\Ejobhppq.exe
  C:\Windows\system32\Ejobhppq.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:1304
- - C:\Windows\SysWOW64\Fjaonpnn.exe
    C:\Windows\system32\Fjaonpnn.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:2752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 140
1⤵
- Loads dropped DLL
- Program crash
PID:2524

C:\Windows\SysWOW64\Fkckeh32.exe
C:\Windows\system32\Fkckeh32.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2620

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

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Downloads

C:\Windows\SysWOW64\Ejobhppq.exe

Filesize
128KB

MD5
06d7c9f7873cc9a34555b9af0c62a7ec

SHA1
eddaed4dbb9c09a67af62e0ec5c9da4f36b3e7d2

SHA256
eabef9b2ed9d85bb6c0ba504fc9d8a3cd5e0f99c584d3720389edd2abe4c110c

SHA512
121e5bd65a4871a92ca86a8710a1691b17458b8a9ee5abccea8e407fb6f922d384233233d4887ffa514ea520326492249921493626d91c04195558b7097c9b73

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

Filesize
128KB

MD5
06d7c9f7873cc9a34555b9af0c62a7ec

SHA1
eddaed4dbb9c09a67af62e0ec5c9da4f36b3e7d2

SHA256
eabef9b2ed9d85bb6c0ba504fc9d8a3cd5e0f99c584d3720389edd2abe4c110c

SHA512
121e5bd65a4871a92ca86a8710a1691b17458b8a9ee5abccea8e407fb6f922d384233233d4887ffa514ea520326492249921493626d91c04195558b7097c9b73

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

Filesize
128KB

MD5
06d7c9f7873cc9a34555b9af0c62a7ec

SHA1
eddaed4dbb9c09a67af62e0ec5c9da4f36b3e7d2

SHA256
eabef9b2ed9d85bb6c0ba504fc9d8a3cd5e0f99c584d3720389edd2abe4c110c

SHA512
121e5bd65a4871a92ca86a8710a1691b17458b8a9ee5abccea8e407fb6f922d384233233d4887ffa514ea520326492249921493626d91c04195558b7097c9b73

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

Filesize
128KB

MD5
b6f820762442e0a04e6c1e69f0a5dc14

SHA1
01c78606171a41b371ca6fa124659b6c0c3fceab

SHA256
180e2f8cd7e60249a1da7ddd572c5d8ae43c065c212bab60632d73ec08929762

SHA512
42ead42787aff7fb948556660218735d470619ad4ed5cb57c493238430c5495c17c9fe8b51e5bd2ab94b9b116b4bdb63f15635e848d51bbf6ac75363f8712eec

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

Filesize
128KB

MD5
b6f820762442e0a04e6c1e69f0a5dc14

SHA1
01c78606171a41b371ca6fa124659b6c0c3fceab

SHA256
180e2f8cd7e60249a1da7ddd572c5d8ae43c065c212bab60632d73ec08929762

SHA512
42ead42787aff7fb948556660218735d470619ad4ed5cb57c493238430c5495c17c9fe8b51e5bd2ab94b9b116b4bdb63f15635e848d51bbf6ac75363f8712eec

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

Filesize
128KB

MD5
b6f820762442e0a04e6c1e69f0a5dc14

SHA1
01c78606171a41b371ca6fa124659b6c0c3fceab

SHA256
180e2f8cd7e60249a1da7ddd572c5d8ae43c065c212bab60632d73ec08929762

SHA512
42ead42787aff7fb948556660218735d470619ad4ed5cb57c493238430c5495c17c9fe8b51e5bd2ab94b9b116b4bdb63f15635e848d51bbf6ac75363f8712eec

Download Submit
C:\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
C:\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Ejobhppq.exe

Filesize
128KB

MD5
06d7c9f7873cc9a34555b9af0c62a7ec

SHA1
eddaed4dbb9c09a67af62e0ec5c9da4f36b3e7d2

SHA256
eabef9b2ed9d85bb6c0ba504fc9d8a3cd5e0f99c584d3720389edd2abe4c110c

SHA512
121e5bd65a4871a92ca86a8710a1691b17458b8a9ee5abccea8e407fb6f922d384233233d4887ffa514ea520326492249921493626d91c04195558b7097c9b73

Download Submit
\Windows\SysWOW64\Ejobhppq.exe

Filesize
128KB

MD5
06d7c9f7873cc9a34555b9af0c62a7ec

SHA1
eddaed4dbb9c09a67af62e0ec5c9da4f36b3e7d2

SHA256
eabef9b2ed9d85bb6c0ba504fc9d8a3cd5e0f99c584d3720389edd2abe4c110c

SHA512
121e5bd65a4871a92ca86a8710a1691b17458b8a9ee5abccea8e407fb6f922d384233233d4887ffa514ea520326492249921493626d91c04195558b7097c9b73

Download Submit
\Windows\SysWOW64\Fjaonpnn.exe

Filesize
128KB

MD5
b6f820762442e0a04e6c1e69f0a5dc14

SHA1
01c78606171a41b371ca6fa124659b6c0c3fceab

SHA256
180e2f8cd7e60249a1da7ddd572c5d8ae43c065c212bab60632d73ec08929762

SHA512
42ead42787aff7fb948556660218735d470619ad4ed5cb57c493238430c5495c17c9fe8b51e5bd2ab94b9b116b4bdb63f15635e848d51bbf6ac75363f8712eec

Download Submit
\Windows\SysWOW64\Fjaonpnn.exe

Filesize
128KB

MD5
b6f820762442e0a04e6c1e69f0a5dc14

SHA1
01c78606171a41b371ca6fa124659b6c0c3fceab

SHA256
180e2f8cd7e60249a1da7ddd572c5d8ae43c065c212bab60632d73ec08929762

SHA512
42ead42787aff7fb948556660218735d470619ad4ed5cb57c493238430c5495c17c9fe8b51e5bd2ab94b9b116b4bdb63f15635e848d51bbf6ac75363f8712eec

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
\Windows\SysWOW64\Fkckeh32.exe

Filesize
128KB

MD5
2f88ef67537268fdadcef987dd292a58

SHA1
fa4031360bc0aaeaa42cbd4060ede3c45f814b54

SHA256
f858cc0b326708b2a6bc3c9557fd395f85eb48bbf70b25fdd2f78a74ad1e0137

SHA512
37233f343a5df45770bf28c05d4312ad214e6c8df61f1e3c4d1be946b8e3e01782f0d7cc036dc8c6022a4294161eeff3ffc949a29cd2ee088f6d15b822def0d3

Download Submit
memory/1304-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2120-6-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2120-0-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2120-12-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2120-45-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2120-46-0x0000000000220000-0x0000000000260000-memory.dmp

Filesize
256KB

Download
memory/2620-40-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2620-47-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2752-32-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads