4a8e933462209a204f87c02e41e88e99541ccb85964a22d9762f443cf19af409

Analysis

max time kernel
150s
max time network
200s
platform
windows7_x64
resource
win7v20210408
submitted
08-07-2021 07:06

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General

Target

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
Size

83KB
MD5

4ed7de390496be3ec2ea7fdb3804282a
SHA1

2c919d469853fac9a7719f59407b395e8e360a49
SHA256

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b
SHA512

5716a8d9d86f9b1f1ad53f3fca96b5622b83ede56d370edc309a503263ad52b542b29e5d74810aed013e9f2e00b77b8c54d81aa0b43c77bfdf5bc7227251bd86

Score

8^/10

evasion

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Checker.exeSA_Checker.exe

pid process

1456 Checker.exe
580 SA_Checker.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1456	Checker.exe
580	SA_Checker.exe

Loads dropped DLL 3 IoCs

Processes:

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe

pid	process
520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SA_Checker.exe

pid process

580 SA_Checker.exe

pid	process
580	SA_Checker.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

SA_Checker.exe

description	pid	process
Token: SeDebugPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe
Token: 33	580	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	580	SA_Checker.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exeSA_Checker.exe

description	pid	process	target process
PID 520 wrote to memory of 1456	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 520 wrote to memory of 1456	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 520 wrote to memory of 1456	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 520 wrote to memory of 1456	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 520 wrote to memory of 580	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 520 wrote to memory of 580	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 520 wrote to memory of 580	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 520 wrote to memory of 580	520	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 580 wrote to memory of 1488	580	SA_Checker.exe	netsh.exe
PID 580 wrote to memory of 1488	580	SA_Checker.exe	netsh.exe
PID 580 wrote to memory of 1488	580	SA_Checker.exe	netsh.exe
PID 580 wrote to memory of 1488	580	SA_Checker.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
"C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:520

C:\Users\Admin\AppData\Local\Temp\Checker.exe
"C:\Users\Admin\AppData\Local\Temp\Checker.exe"
2⤵
- Executes dropped EXE
PID:1456

C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe
"C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:580

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe" "SA_Checker.exe" ENABLE
3⤵
PID:1488

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Checker.exe
MD5
970dbe61f878ffef5c98df482a33b93a

SHA1
2f8e4f7dd06cc67da661f7a33e6a6f79182bc957

SHA256
bda3eaba6bd0015d68a261b9f8afd2431f702524b7a333fca3b3514058aaff48

SHA512
f1c9b203e1770e3327217998b4a002a3494e61b8883b2ad4cb6439d3105b65c8cf807d77c029331b678df15dfc89bdff52bd93124b78c67d6f342fc48e2c8621

Download Submit
C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe
MD5
88949354d6430e1c6fd4ee0e0d987070

SHA1
10d1014f00cd173449f1d3ea2b698a5443688584

SHA256
d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0

SHA512
8a18883b2f89bc87449d9fde1ef835fba2186c494ffa3b2adcded7b86103ddd0154856dd5fa9b2e565b6bedd50b80975a8a07ac56560bc725c84c5d7d90abe29

Download Submit
C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe
MD5
88949354d6430e1c6fd4ee0e0d987070

SHA1
10d1014f00cd173449f1d3ea2b698a5443688584

SHA256
d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0

SHA512
8a18883b2f89bc87449d9fde1ef835fba2186c494ffa3b2adcded7b86103ddd0154856dd5fa9b2e565b6bedd50b80975a8a07ac56560bc725c84c5d7d90abe29

Download Submit
\Users\Admin\AppData\Local\Temp\Checker.exe
MD5
970dbe61f878ffef5c98df482a33b93a

SHA1
2f8e4f7dd06cc67da661f7a33e6a6f79182bc957

SHA256
bda3eaba6bd0015d68a261b9f8afd2431f702524b7a333fca3b3514058aaff48

SHA512
f1c9b203e1770e3327217998b4a002a3494e61b8883b2ad4cb6439d3105b65c8cf807d77c029331b678df15dfc89bdff52bd93124b78c67d6f342fc48e2c8621

Download Submit
\Users\Admin\AppData\Local\Temp\SA_Checker.exe
MD5
88949354d6430e1c6fd4ee0e0d987070

SHA1
10d1014f00cd173449f1d3ea2b698a5443688584

SHA256
d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0

SHA512
8a18883b2f89bc87449d9fde1ef835fba2186c494ffa3b2adcded7b86103ddd0154856dd5fa9b2e565b6bedd50b80975a8a07ac56560bc725c84c5d7d90abe29

Download Submit
\Users\Admin\AppData\Local\Temp\SA_Checker.exe
MD5
88949354d6430e1c6fd4ee0e0d987070

SHA1
10d1014f00cd173449f1d3ea2b698a5443688584

SHA256
d08373a237b6f58a7b1215926fac0faefcdddbf7967b4226f84cbdb275a261f0

SHA512
8a18883b2f89bc87449d9fde1ef835fba2186c494ffa3b2adcded7b86103ddd0154856dd5fa9b2e565b6bedd50b80975a8a07ac56560bc725c84c5d7d90abe29

Download Submit
memory/520-59-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/580-65-0x0000000000000000-mapping.dmp

Download
memory/580-69-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/1456-61-0x0000000000000000-mapping.dmp

Download
memory/1488-70-0x0000000000000000-mapping.dmp

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