d6f9044dd96119f51322fe49e600d11d67249f83ad5f62c0b7c3a7b342354aec

General

Target

?? ?? ?????????doc.com.exe
Size

848KB
MD5

06559a48b54cc741ec37f24c437cd199
SHA1

daa15a2ed47960179c9611ba84520bc5f8002873
SHA256

2b7062e20c674dd25059533ecfbb5a66ab3ecda2e01c30e8c9a81cc4290b8f11
SHA512

8d8325f6e9b29201861a28eaf6fe26f3013bf2b64be514e1b5dc329c986a41abe7a4fc5210e7c5b5e8f0dffc0521bd1d005b7260ec6ed699bb407b66d6ae66df

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

lsassa.exelsassa.exe

pid process

284 lsassa.exe
1484 lsassa.exe

pid	process
284	lsassa.exe
1484	lsassa.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1484-59-0x0000000000400000-0x0000000000534000-memory.dmp	upx
behavioral1/memory/1484-62-0x0000000000400000-0x0000000000534000-memory.dmp	upx
behavioral1/memory/1484-69-0x0000000000400000-0x0000000000534000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

__ __ _________doc.com.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	__ __ _________doc.com.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\googleÉý¼¶ = "C:\\Users\\Admin\\Documents\\lsassa.exe"	__ __ _________doc.com.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

lsassa.exe

description	ioc	process
File opened (read-only)	\??\J:	lsassa.exe
File opened (read-only)	\??\L:	lsassa.exe
File opened (read-only)	\??\R:	lsassa.exe
File opened (read-only)	\??\S:	lsassa.exe
File opened (read-only)	\??\V:	lsassa.exe
File opened (read-only)	\??\Z:	lsassa.exe
File opened (read-only)	\??\G:	lsassa.exe
File opened (read-only)	\??\I:	lsassa.exe
File opened (read-only)	\??\N:	lsassa.exe
File opened (read-only)	\??\T:	lsassa.exe
File opened (read-only)	\??\U:	lsassa.exe
File opened (read-only)	\??\X:	lsassa.exe
File opened (read-only)	\??\E:	lsassa.exe
File opened (read-only)	\??\Q:	lsassa.exe
File opened (read-only)	\??\Y:	lsassa.exe
File opened (read-only)	\??\O:	lsassa.exe
File opened (read-only)	\??\F:	lsassa.exe
File opened (read-only)	\??\H:	lsassa.exe
File opened (read-only)	\??\K:	lsassa.exe
File opened (read-only)	\??\M:	lsassa.exe
File opened (read-only)	\??\P:	lsassa.exe
File opened (read-only)	\??\W:	lsassa.exe
File opened (read-only)	\??\B:	lsassa.exe

Drops file in System32 directory 1 IoCs

Processes:

lsassa.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	lsassa.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

lsassa.exe

description pid process target process

PID 284 set thread context of 1484 284 lsassa.exe lsassa.exe

description	pid	process	target process
PID 284 set thread context of 1484	284	lsassa.exe	lsassa.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

lsassa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	lsassa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	lsassa.exe

Modifies data under HKEY_USERS 12 IoCs

Processes:

lsassa.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	lsassa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	lsassa.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	lsassa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	lsassa.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	lsassa.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	lsassa.exe

Suspicious behavior: EnumeratesProcesses 37 IoCs

Processes:

__ __ _________doc.com.exelsassa.exe

pid	process
1648	__ __ _________doc.com.exe
1648	__ __ _________doc.com.exe
1648	__ __ _________doc.com.exe
1648	__ __ _________doc.com.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe
1484	lsassa.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

__ __ _________doc.com.exelsassa.exe

description	pid	process
Token: SeDebugPrivilege	1648	__ __ _________doc.com.exe
Token: 33	1484	lsassa.exe
Token: SeIncBasePriorityPrivilege	1484	lsassa.exe
Token: 33	1484	lsassa.exe
Token: SeIncBasePriorityPrivilege	1484	lsassa.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

__ __ _________doc.com.exe

pid process

1648 __ __ _________doc.com.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

lsassa.exe

description	pid	process	target process
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe
PID 284 wrote to memory of 1484	284	lsassa.exe	lsassa.exe

C:\Users\Admin\AppData\Local\Temp\__ __ _________doc.com.exe
"C:\Users\Admin\AppData\Local\Temp\__ __ _________doc.com.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1648

C:\Users\Admin\Documents\lsassa.exe
"C:\Users\Admin\Documents\lsassa.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:284

C:\Users\Admin\Documents\lsassa.exe
C:\Users\Admin\Documents\lsassa.exe
3⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\lsassa.exe
MD5
9a407574432270a19ec46ddf1c6dbe5d

SHA1
e38e2827a57dc2ebd37acb6a62aa11c46f242ef5

SHA256
f911f21b819fe3de51f8f880abb7a7a921e38fdf5618462f8a5ff2feca2f4800

SHA512
6401f5386a0b944e606fa1fd194a5f22bc83b102abdb04324be5a7a5fed7161a7a8a8fb90306a556c6922200f5558a3434cf72fecdecc5eae156db667059f5c6

Download Submit
C:\Users\Admin\Documents\lsassa.exe
MD5
9a407574432270a19ec46ddf1c6dbe5d

SHA1
e38e2827a57dc2ebd37acb6a62aa11c46f242ef5

SHA256
f911f21b819fe3de51f8f880abb7a7a921e38fdf5618462f8a5ff2feca2f4800

SHA512
6401f5386a0b944e606fa1fd194a5f22bc83b102abdb04324be5a7a5fed7161a7a8a8fb90306a556c6922200f5558a3434cf72fecdecc5eae156db667059f5c6

Download Submit
C:\Users\Admin\Documents\md5.png
MD5
047bbdd42c244b7aa2c15d48fff96a29

SHA1
e658b8abebb77ee1d8d3458f314a226d56d0f9b8

SHA256
f9cfa36f4bde6457ea5138f4ded1ba18d05e31950c3de119e25e540c3dc5efcf

SHA512
e37e64d5ef56799b3982e7dcb6c18270d9301859afa8b4ecf6a48d399168b061f0ab99b84cbb77e0b50dfc93802595f052202447d4a971afb56a3296c70fc8c5

Download Submit
memory/1484-62-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/1484-59-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/1484-60-0x0000000000530D30-mapping.dmp

Download
memory/1484-58-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/1484-65-0x0000000010096000-0x0000000010099000-memory.dmp

Filesize
12KB

Download
memory/1484-64-0x0000000010001000-0x0000000010096000-memory.dmp

Filesize
596KB

Download
memory/1484-66-0x0000000010099000-0x00000000100B4000-memory.dmp

Filesize
108KB

Download
memory/1484-67-0x00000000100B4000-0x00000000100F6000-memory.dmp

Filesize
264KB

Download
memory/1484-68-0x0000000010183000-0x0000000010187000-memory.dmp

Filesize
16KB

Download
memory/1484-69-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/1648-55-0x0000000075491000-0x0000000075493000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads