b023d1cfb273b515a30b82298c5fcaa7b5a6f6e7d8d85b9ba4e5204944b06f64

General

Target

8edc229276235f28da6a7c4badbef360N.exe
Size

11KB
MD5

8edc229276235f28da6a7c4badbef360
SHA1

d31e42f6895b6b18229374f5616586fb36b24862
SHA256

b023d1cfb273b515a30b82298c5fcaa7b5a6f6e7d8d85b9ba4e5204944b06f64
SHA512

ad61a6ed08e8be07c4fb9a329cc978412604e93d3cde7a9e4287878d47468963e574c4938084111facba6b7b581790b9d23ce19b65a0e2daeaae14264cc3e04a
SSDEEP

192:y5085ewGKJM3+CKPJXV1CGgNMIGIV/4zM/i/rH2Y0u2tbOVhHNMAPabg:y5fHBl1mxGIVg+KHf8aVhtMA4g

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Deletes itself 1 IoCs

pid	Process
2660	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2980	jolinosk.exe

Loads dropped DLL 2 IoCs

pid	Process
2076	8edc229276235f28da6a7c4badbef360N.exe
2076	8edc229276235f28da6a7c4badbef360N.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0008000000015e21-3.dat	upx
behavioral1/memory/2980-13-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/memory/2076-12-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\jolinos.dll	8edc229276235f28da6a7c4badbef360N.exe
File created	C:\Windows\SysWOW64\jolinosk.exe	8edc229276235f28da6a7c4badbef360N.exe
File opened for modification	C:\Windows\SysWOW64\jolinosk.exe	8edc229276235f28da6a7c4badbef360N.exe

Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
persistence privilege_escalation

Accessibility Features
T1546.008

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8edc229276235f28da6a7c4badbef360N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2980	2076	8edc229276235f28da6a7c4badbef360N.exe	30
PID 2076 wrote to memory of 2980	2076	8edc229276235f28da6a7c4badbef360N.exe	30
PID 2076 wrote to memory of 2980	2076	8edc229276235f28da6a7c4badbef360N.exe	30
PID 2076 wrote to memory of 2980	2076	8edc229276235f28da6a7c4badbef360N.exe	30
PID 2076 wrote to memory of 2660	2076	8edc229276235f28da6a7c4badbef360N.exe	32
PID 2076 wrote to memory of 2660	2076	8edc229276235f28da6a7c4badbef360N.exe	32
PID 2076 wrote to memory of 2660	2076	8edc229276235f28da6a7c4badbef360N.exe	32
PID 2076 wrote to memory of 2660	2076	8edc229276235f28da6a7c4badbef360N.exe	32

C:\Users\Admin\AppData\Local\Temp\8edc229276235f28da6a7c4badbef360N.exe
"C:\Users\Admin\AppData\Local\Temp\8edc229276235f28da6a7c4badbef360N.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\jolinosk.exe
  C:\Windows\system32\jolinosk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2980
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\8edc229276235f28da6a7c4badbef360N.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

2

T1546

Accessibility Features

1

T1546.008

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

2

T1546

Accessibility Features

1

T1546.008

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\8edc229276235f28da6a7c4badbef360N.exe.bat

Filesize
184B

MD5
6a345be9d1966844cb2042d0a47232a0

SHA1
ad78b71ec1d8b68beb3143285deae44f874b24d7

SHA256
9e5e9ab9ab69bcf3e2bb43d96ce520550815133e6463e87fea288effcc2232e1

SHA512
2feeded17883523b517fdd073b4af97c2fcc974a4b4358787f6f5b37bea26363271b5419eb0a15640e453d13e20c18b64b57949d3cddf2cc7bdc2e0c51c92882

Download Submit
\Windows\SysWOW64\jolinosk.exe

Filesize
11KB

MD5
8edc229276235f28da6a7c4badbef360

SHA1
d31e42f6895b6b18229374f5616586fb36b24862

SHA256
b023d1cfb273b515a30b82298c5fcaa7b5a6f6e7d8d85b9ba4e5204944b06f64

SHA512
ad61a6ed08e8be07c4fb9a329cc978412604e93d3cde7a9e4287878d47468963e574c4938084111facba6b7b581790b9d23ce19b65a0e2daeaae14264cc3e04a

Download Submit
memory/2076-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2076-11-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2076-10-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2076-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2076-16-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2980-13-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

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