4a8e933462209a204f87c02e41e88e99541ccb85964a22d9762f443cf19af409

Analysis

max time kernel
148s
max time network
161s
platform
windows10_x64
resource
win10v20210410
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

1896 Checker.exe
2356 SA_Checker.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Checker.exe

pid process

1896 Checker.exe
1896 Checker.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

SA_Checker.exe

pid process

2356 SA_Checker.exe

pid	process
1896	Checker.exe
2356	SA_Checker.exe

pid	process
1896	Checker.exe
1896	Checker.exe

pid	process
2356	SA_Checker.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

Processes:

SA_Checker.exe

description	pid	process
Token: SeDebugPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe
Token: 33	2356	SA_Checker.exe
Token: SeIncBasePriorityPrivilege	2356	SA_Checker.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exeChecker.exeSA_Checker.exe

description	pid	process	target process
PID 2184 wrote to memory of 1896	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 2184 wrote to memory of 1896	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 2184 wrote to memory of 1896	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	Checker.exe
PID 2184 wrote to memory of 2356	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 2184 wrote to memory of 2356	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 2184 wrote to memory of 2356	2184	a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe	SA_Checker.exe
PID 1896 wrote to memory of 2920	1896	Checker.exe	cmd.exe
PID 1896 wrote to memory of 2920	1896	Checker.exe	cmd.exe
PID 1896 wrote to memory of 2920	1896	Checker.exe	cmd.exe
PID 2356 wrote to memory of 2208	2356	SA_Checker.exe	netsh.exe
PID 2356 wrote to memory of 2208	2356	SA_Checker.exe	netsh.exe
PID 2356 wrote to memory of 2208	2356	SA_Checker.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe
"C:\Users\Admin\AppData\Local\Temp\a568f22004828c8dc2e3e31c3a8f49a89b164e1eb268f57c93430b20368cfe3b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2184

C:\Users\Admin\AppData\Local\Temp\Checker.exe
"C:\Users\Admin\AppData\Local\Temp\Checker.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1896

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c pause
3⤵
PID:2920

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:2356

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\SA_Checker.exe" "SA_Checker.exe" ENABLE
3⤵
PID:2208

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

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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
memory/1896-114-0x0000000000000000-mapping.dmp

Download
memory/2208-122-0x0000000000000000-mapping.dmp

Download
memory/2356-116-0x0000000000000000-mapping.dmp

Download
memory/2356-119-0x0000000002B50000-0x0000000002B51000-memory.dmp

Filesize
4KB

Download
memory/2920-121-0x0000000000000000-mapping.dmp

Download