ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0

General

Target
commercialJ-88-PM-MRQ-5035-680112.exe
Size 1.3MB
Sample250124-cb476avrdn
SHA256 ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
MD5 f5575a7f82c981a92e9938151971b9f1
SHA1 d89e8b2deb385a89b410400fc1f28839d54b6348
SHA512 b75bf513f20212ca86a388fcb44956f32dd5a0a8fc4083a9f3b2f005a573466df24755d1ef507eaf84cedeed10699b939b9d253414d3a0f346b68685474daf76
SSDEEP 24576:uRmJkcoQricOIQxiZY1iaChu9Ii7ASTcteO11A+RNIZXRl:7JZoQrbTFZY1iaCU9P7AFeO1zjIZXRl
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery

Malware Config

Signatures

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2424	jinrikimen.exe

Loads dropped DLL 1 IoCs

pid	Process
2044	commercialJ-88-PM-MRQ-5035-680112.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000016d0c-4.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2424 set thread context of 584	2424	jinrikimen.exe	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	commercialJ-88-PM-MRQ-5035-680112.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jinrikimen.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
584	svchost.exe
584	svchost.exe
584	svchost.exe
584	svchost.exe
584	svchost.exe
584	svchost.exe
584	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2424	jinrikimen.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2044	commercialJ-88-PM-MRQ-5035-680112.exe
2044	commercialJ-88-PM-MRQ-5035-680112.exe
2424	jinrikimen.exe
2424	jinrikimen.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2044	commercialJ-88-PM-MRQ-5035-680112.exe
2044	commercialJ-88-PM-MRQ-5035-680112.exe
2424	jinrikimen.exe
2424	jinrikimen.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 2424	2044	commercialJ-88-PM-MRQ-5035-680112.exe	30
PID 2044 wrote to memory of 2424	2044	commercialJ-88-PM-MRQ-5035-680112.exe	30
PID 2044 wrote to memory of 2424	2044	commercialJ-88-PM-MRQ-5035-680112.exe	30
PID 2044 wrote to memory of 2424	2044	commercialJ-88-PM-MRQ-5035-680112.exe	30
PID 2424 wrote to memory of 584	2424	jinrikimen.exe	31
PID 2424 wrote to memory of 584	2424	jinrikimen.exe	31
PID 2424 wrote to memory of 584	2424	jinrikimen.exe	31
PID 2424 wrote to memory of 584	2424	jinrikimen.exe	31
PID 2424 wrote to memory of 584	2424	jinrikimen.exe	31

C:\Users\Admin\AppData\Local\Temp\commercialJ-88-PM-MRQ-5035-680112.exe
"C:\Users\Admin\AppData\Local\Temp\commercialJ-88-PM-MRQ-5035-680112.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Users\Admin\AppData\Local\buncal\jinrikimen.exe
  "C:\Users\Admin\AppData\Local\Temp\commercialJ-88-PM-MRQ-5035-680112.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\commercialJ-88-PM-MRQ-5035-680112.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

acrorrheuma

Path C:\Users\Admin\AppData\Local\Temp\acrorrheuma
Size 281KB
SHA256 deba75ec1fe13c06d26f45028c1e43a3545db9260d3addac576062e2df42f642
MD5 fd8f6857d0174266b310c8225568bbc8
SHA1 38891c9b9eb56c2fef875ad082f70180972a1f93
SHA512 b172f046212bb00b5a76c8a7713b7119cbd614239dd11b3996b5e24e02d63db53e1fc3490707e9b2d9d80093f123568c0fb0141ea8857b91a2808ea2353612ad
SSDEEP 6144:ZCUG8msRGNBaoLWVdSNyENrkRpZlxkOjDch0FRGGYIw8IUqUotkmpj:HiU/jSNxNARp8UcGhxuNj
MD5 SHA1 SHA512 SSDEEP

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jinrikimen.exe

Path \Users\Admin\AppData\Local\buncal\jinrikimen.exe
Size 1.3MB
SHA256 ecfcb1b1ffd98d7fc34996aadca709e571267386b4e95ef68ca96bf516cb17d0
MD5 f5575a7f82c981a92e9938151971b9f1
SHA1 d89e8b2deb385a89b410400fc1f28839d54b6348
SHA512 b75bf513f20212ca86a388fcb44956f32dd5a0a8fc4083a9f3b2f005a573466df24755d1ef507eaf84cedeed10699b939b9d253414d3a0f346b68685474daf76
SSDEEP 24576:uRmJkcoQricOIQxiZY1iaChu9Ii7ASTcteO11A+RNIZXRl:7JZoQrbTFZY1iaCU9P7AFeO1zjIZXRl
MD5 SHA1 SHA512 SSDEEP

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memory/584-14-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/584-15-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/584-16-0x00000000007E0000-0x0000000000AE3000-memory.dmp

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memory/584-17-0x0000000000400000-0x0000000000447000-memory.dmp

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memory/2044-2-0x0000000003040000-0x0000000003240000-memory.dmp

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memory/2424-12-0x0000000002FB0000-0x00000000031B0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads