cf8067fbcb1560808c9b972f9a9a53121cea6f8c9ae6e8f16562797f88f9e219

Analysis

max time kernel
150s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
02/07/2023, 02:05

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General

Target

Fortnite Checker OtimCLR3_/OtimCLR_v3.exe
Size

206KB
MD5

f277eaa4f9145e3c9490184412bb405d
SHA1

1b01915a95c71157d78bea3bed7d434bb33176c1
SHA256

689260f903558081689b0a6837a6fd820ea9de4c07ac9fffb962258f8e0ceef2
SHA512

53d604441c9d5c43c2e5e2467f18539b7eec548093ebb00955ce903396ea9f937cfba24bf262685fb697606b6ef3210c31b6a10af6000a50e3f49c884373c8a3
SSDEEP

3072:74lHGcqsLPc20jV9yI95qeeeRUeeeO41DMf6RNYZVyZVijCvu:76HLqiPc9jn9ueeeRUeeeOgvY6

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Control Panel\International\Geo\Nation	OtimCLR_v3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Control Panel\International\Geo\Nation	Windows Services.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Startup.lnk	Launcher.exe

Executes dropped EXE 3 IoCs

pid	Process
1972	Windows Services.exe
1784	Secure System Shell.exe
3796	Runtime Explorer.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Explorer = "C:\\Windows\\IMF\\\\Windows Services.exe"	Launcher.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File created	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File created	C:\Windows\IMF\Runtime Explorer.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Windows Services.exe	Launcher.exe
File opened for modification	C:\Windows\IMF\LICENCE.zip	Launcher.exe
File created	C:\Windows\IMF\LICENCE.dat	Launcher.exe
File opened for modification	C:\Windows\IMF\Runtime Explorer.exe	Launcher.exe
File created	C:\Windows\IMF\Secure System Shell.exe.tmp	Launcher.exe
File opened for modification	C:\Windows\IMF\Secure System Shell.exe	Launcher.exe
File created	C:\Windows\IMF\Windows Services.exe.tmp	Launcher.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4156	Launcher.exe
3628	powershell.exe
3628	powershell.exe
1972	Windows Services.exe
1972	Windows Services.exe
1972	Windows Services.exe
1972	Windows Services.exe
1784	Secure System Shell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4156	Launcher.exe
Token: SeDebugPrivilege	3628	powershell.exe
Token: SeDebugPrivilege	4776	SoftOtim syS.exe
Token: SeDebugPrivilege	1972	Windows Services.exe
Token: SeDebugPrivilege	1784	Secure System Shell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3796	Runtime Explorer.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 4156	4508	OtimCLR_v3.exe	84
PID 4508 wrote to memory of 4156	4508	OtimCLR_v3.exe	84
PID 4508 wrote to memory of 4156	4508	OtimCLR_v3.exe	84
PID 4508 wrote to memory of 4776	4508	OtimCLR_v3.exe	87
PID 4508 wrote to memory of 4776	4508	OtimCLR_v3.exe	87
PID 4508 wrote to memory of 4776	4508	OtimCLR_v3.exe	87
PID 4156 wrote to memory of 3628	4156	Launcher.exe	88
PID 4156 wrote to memory of 3628	4156	Launcher.exe	88
PID 4156 wrote to memory of 3628	4156	Launcher.exe	88
PID 4156 wrote to memory of 1972	4156	Launcher.exe	92
PID 4156 wrote to memory of 1972	4156	Launcher.exe	92
PID 4156 wrote to memory of 1972	4156	Launcher.exe	92
PID 1972 wrote to memory of 1784	1972	Windows Services.exe	93
PID 1972 wrote to memory of 1784	1972	Windows Services.exe	93
PID 1972 wrote to memory of 1784	1972	Windows Services.exe	93
PID 1972 wrote to memory of 3796	1972	Windows Services.exe	94
PID 1972 wrote to memory of 3796	1972	Windows Services.exe	94
PID 1972 wrote to memory of 3796	1972	Windows Services.exe	94

C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimCLR_v3.exe
"C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimCLR_v3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimSoft\Launcher.exe
  "C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimSoft\Launcher.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4156
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath C:\Windows\IMF\
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3628
- - C:\Windows\IMF\Windows Services.exe
    "C:\Windows\IMF\Windows Services.exe" {Arguments If Needed}
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1972
  - - C:\Windows\IMF\Secure System Shell.exe
      "C:\Windows\IMF\Secure System Shell.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1784
  - - C:\Windows\IMF\Runtime Explorer.exe
      "C:\Windows\IMF\Runtime Explorer.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      PID:3796
- C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimSoft\SoftOtim syS.exe
  "C:\Users\Admin\AppData\Local\Temp\Fortnite Checker OtimCLR3_\OtimSoft\SoftOtim syS.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4776

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5i100wfg.y31.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
4a55a159e56c22275bc17ac52903c8fb

SHA1
bab7f0bb787146c3a05e329d9003110560101d12

SHA256
1bdea1b16e15671768d3016775610c5a4ac20e0a411714fc323c374bc3e773d1

SHA512
02b82394f9c737564aed9f34f89acfcb6e8f90487b011c500b6f70d0e4cac05759d024bb57e1b1f9bf44768a904531129d69cfa85ea53d2339bf5c3abaf69b42

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
4a55a159e56c22275bc17ac52903c8fb

SHA1
bab7f0bb787146c3a05e329d9003110560101d12

SHA256
1bdea1b16e15671768d3016775610c5a4ac20e0a411714fc323c374bc3e773d1

SHA512
02b82394f9c737564aed9f34f89acfcb6e8f90487b011c500b6f70d0e4cac05759d024bb57e1b1f9bf44768a904531129d69cfa85ea53d2339bf5c3abaf69b42

Download Submit
C:\Windows\IMF\Runtime Explorer.exe

Filesize
144KB

MD5
4a55a159e56c22275bc17ac52903c8fb

SHA1
bab7f0bb787146c3a05e329d9003110560101d12

SHA256
1bdea1b16e15671768d3016775610c5a4ac20e0a411714fc323c374bc3e773d1

SHA512
02b82394f9c737564aed9f34f89acfcb6e8f90487b011c500b6f70d0e4cac05759d024bb57e1b1f9bf44768a904531129d69cfa85ea53d2339bf5c3abaf69b42

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Secure System Shell.exe

Filesize
45KB

MD5
7d0c7359e5b2daa5665d01afdc98cc00

SHA1
c3cc830c8ffd0f53f28d89dcd9f3426be87085cb

SHA256
f1abd5ab03189e82971513e6ca04bd372fcf234d670079888f01cf4addd49809

SHA512
a8f82b11b045d8dd744506f4f56f3382b33a03684a6aebc91a02ea901c101b91cb43b7d0213f72f39cbb22f616ecd5de8b9e6c99fb5669f26a3ea6bcb63c8407

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
C:\Windows\IMF\Windows Services.exe

Filesize
46KB

MD5
ad0ce1302147fbdfecaec58480eb9cf9

SHA1
874efbc76e5f91bc1425a43ea19400340f98d42b

SHA256
2c339b52b82e73b4698a0110cdfe310c00c5c69078e9e1bd6fa1308652bf82a3

SHA512
adccd5520e01b673c2fc5c451305fe31b1a3e74891aece558f75fefc50218adf1fb81bb8c7f19969929d3fecb0fdb2cb5b564400d51e0a5a1ad8d5bc2d4eed53

Download Submit
memory/1784-239-0x0000000005510000-0x0000000005520000-memory.dmp

Filesize
64KB

Download
memory/1784-230-0x0000000005510000-0x0000000005520000-memory.dmp

Filesize
64KB

Download
memory/1784-223-0x0000000000BC0000-0x0000000000BD2000-memory.dmp

Filesize
72KB

Download
memory/1972-238-0x0000000004980000-0x0000000004990000-memory.dmp

Filesize
64KB

Download
memory/1972-218-0x0000000004980000-0x0000000004990000-memory.dmp

Filesize
64KB

Download
memory/1972-205-0x0000000000150000-0x0000000000162000-memory.dmp

Filesize
72KB

Download
memory/3628-156-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/3628-225-0x00000000075D0000-0x0000000007C4A000-memory.dmp

Filesize
6.5MB

Download
memory/3628-235-0x00000000072B0000-0x00000000072B8000-memory.dmp

Filesize
32KB

Download
memory/3628-234-0x00000000072D0000-0x00000000072EA000-memory.dmp

Filesize
104KB

Download
memory/3628-162-0x0000000004830000-0x0000000004840000-memory.dmp

Filesize
64KB

Download
memory/3628-163-0x0000000004830000-0x0000000004840000-memory.dmp

Filesize
64KB

Download
memory/3628-233-0x00000000071C0000-0x00000000071CE000-memory.dmp

Filesize
56KB

Download
memory/3628-232-0x0000000007210000-0x00000000072A6000-memory.dmp

Filesize
600KB

Download
memory/3628-229-0x0000000007000000-0x000000000700A000-memory.dmp

Filesize
40KB

Download
memory/3628-167-0x0000000005C80000-0x0000000005C9E000-memory.dmp

Filesize
120KB

Download
memory/3628-227-0x0000000006F90000-0x0000000006FAA000-memory.dmp

Filesize
104KB

Download
memory/3628-150-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/3628-219-0x000000007EE60000-0x000000007EE70000-memory.dmp

Filesize
64KB

Download
memory/3628-146-0x00000000046D0000-0x0000000004706000-memory.dmp

Filesize
216KB

Download
memory/3628-217-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/3628-149-0x0000000004DC0000-0x0000000004DE2000-memory.dmp

Filesize
136KB

Download
memory/3628-207-0x000000006D6F0000-0x000000006D73C000-memory.dmp

Filesize
304KB

Download
memory/3628-147-0x0000000004E70000-0x0000000005498000-memory.dmp

Filesize
6.2MB

Download
memory/3628-206-0x0000000006250000-0x0000000006282000-memory.dmp

Filesize
200KB

Download
memory/4156-144-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4156-190-0x00000000075F0000-0x000000000760E000-memory.dmp

Filesize
120KB

Download
memory/4156-141-0x0000000006A20000-0x0000000006A9E000-memory.dmp

Filesize
504KB

Download
memory/4156-189-0x0000000007610000-0x0000000007686000-memory.dmp

Filesize
472KB

Download
memory/4156-143-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4156-140-0x0000000000E90000-0x0000000000EA4000-memory.dmp

Filesize
80KB

Download
memory/4508-136-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/4508-134-0x0000000004CF0000-0x0000000004D8C000-memory.dmp

Filesize
624KB

Download
memory/4508-137-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4508-138-0x0000000004FA0000-0x0000000004FF6000-memory.dmp

Filesize
344KB

Download
memory/4508-135-0x0000000005340000-0x00000000058E4000-memory.dmp

Filesize
5.6MB

Download
memory/4508-133-0x00000000002D0000-0x000000000030A000-memory.dmp

Filesize
232KB

Download
memory/4508-139-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/4776-145-0x0000000000490000-0x0000000000570000-memory.dmp

Filesize
896KB

Download
memory/4776-166-0x00000000059D0000-0x0000000005A80000-memory.dmp

Filesize
704KB

Download
memory/4776-165-0x00000000056E0000-0x0000000005704000-memory.dmp

Filesize
144KB

Download
memory/4776-164-0x0000000005710000-0x0000000005720000-memory.dmp

Filesize
64KB

Download
memory/4776-161-0x0000000005680000-0x000000000569C000-memory.dmp

Filesize
112KB

Download
memory/4776-148-0x0000000002AF0000-0x0000000002B18000-memory.dmp

Filesize
160KB

Download