906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2023, 18:51

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General

Target

906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Size

1.2MB
MD5

ead467bed7ac3dfd007c16ab794ae84d
SHA1

c7b93a0c16eaf4b3fbb12cb201194700ed855ece
SHA256

906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b
SHA512

a0b6aee2c030c2183ae6871da506b12a7740bbf14d82c8b40d5f10744a889300f211b782e1379c60a5ddeb8562e85e0a64e21c6e2c91be835b1d9900e3d22a57
SSDEEP

24576:fO1LHcsboAcntImlnm5bGFZ0XkAck+ffCUyCBZY3/P:G2Acn9CkZ0X2hff/yC3G/P

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-528036852-1341495193-1175965888-1000\Control Panel\International\Geo\Nation	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2756-0-0x0000000000630000-0x0000000000768000-memory.dmp	upx
behavioral2/memory/2756-35-0x0000000000630000-0x0000000000768000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\System32\NaturalAuth9Ml.sys	efsui.exe
File created	C:\Windows\System32\scrrun6zAP.sys	efsui.exe
File created	C:\Windows\System32\AppXDeploymentExtensions.desktopXivl.sys	efsui.exe
File created	C:\Windows\System32\C_20000ouO4.sys	efsui.exe
File created	C:\Windows\System32\UserDataAccessResYBx2.sys	efsui.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell8464754.log	charmap.exe
File opened for modification	C:\Windows\WindowMicrosoftNET143.log	charmap.exe
File opened for modification	C:\Windows\WindowTerminalVaild227.log	charmap.exe
File opened for modification	C:\Windows\WindowRedSystem308.log	efsui.exe
File opened for modification	C:\Windows\WindowsShell1700431.log	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate11.log	charmap.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1568	charmap.exe
1568	charmap.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe
2232	efsui.exe

Suspicious behavior: LoadsDriver 5 IoCs

pid	Process
680	Process not Found
680	Process not Found
680	Process not Found
680	Process not Found
680	Process not Found

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeIncBasePriorityPrivilege	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeDebugPrivilege	2232	efsui.exe
Token: SeDebugPrivilege	1568	charmap.exe
Token: SeDebugPrivilege	1568	charmap.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 1568	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	85
PID 2756 wrote to memory of 4972	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	88
PID 2756 wrote to memory of 4972	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	88
PID 2756 wrote to memory of 4972	2756	906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe	88
PID 1568 wrote to memory of 2232	1568	charmap.exe	92
PID 1568 wrote to memory of 2232	1568	charmap.exe	92
PID 1568 wrote to memory of 2232	1568	charmap.exe	92
PID 1568 wrote to memory of 2232	1568	charmap.exe	92
PID 1568 wrote to memory of 2232	1568	charmap.exe	92
PID 1568 wrote to memory of 2232	1568	charmap.exe	92

C:\Users\Admin\AppData\Local\Temp\906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe
"C:\Users\Admin\AppData\Local\Temp\906feb95cbda1e378f170b8dbfaac0f6a696590a7072ee8404c2583612f7a58b.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\charmap.exe
  "C:\Windows\SysWOW64\charmap.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1568
- - C:\Windows\SysWOW64\efsui.exe
    "C:\Windows\SysWOW64\efsui.exe"
    3⤵
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\906FEB~1.EXE > nul
  2⤵
  PID:4972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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:\Windows\WindowRedSystem308.log

Filesize
7KB

MD5
878c6851fa6b8c0faa241a540a7809c5

SHA1
dd59dbf62a65e881aab32a90e686cc7de7d6be44

SHA256
de7a051789ab700ff09840293e1269160091c3fffd02e3a4b2f3f5479b587a63

SHA512
cf78989fdacab45db121bc9022277a4fc60c25b2f4f611004f2fb1add0d139d5967bf670c2d7fbf91bf68695c7981b913a759521aa9f1c624bfc2981190ae0c8

Download Submit
C:\Windows\WindowSystemNewUpdate11.log

Filesize
6KB

MD5
0ffebf7420d0071623f7d197cf25b8f7

SHA1
9aa0233d5cf0697ffb25f2bf5bc5f0b0d81c7700

SHA256
d43807b54767bb2b9e7a6d87217fd4d99597ef380cc794a4b160de12e63b2a39

SHA512
0c45098a16720a89f4c5cc9760a04df629168b3288008a486704f1b403db296b1b987f75ec4e1efb1a31de312d5e88795dc48f0a80652bf9195e9792b108b3c7

Download Submit
memory/1568-49-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-6-0x00000000028A0000-0x00000000028BB000-memory.dmp

Filesize
108KB

Download
memory/1568-7-0x00000000028A0000-0x00000000028BB000-memory.dmp

Filesize
108KB

Download
memory/1568-8-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-17-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-19-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-21-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-24-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-28-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-27-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-26-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-29-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-31-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-32-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-302-0x000000000A990000-0x000000000AD13000-memory.dmp

Filesize
3.5MB

Download
memory/1568-36-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-38-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-39-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-40-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-41-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-53-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-292-0x000000000A990000-0x000000000AD13000-memory.dmp

Filesize
3.5MB

Download
memory/1568-51-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-54-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-56-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-57-0x0000000003FC0000-0x0000000004490000-memory.dmp

Filesize
4.8MB

Download
memory/1568-62-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-65-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-69-0x00000000037C0000-0x0000000003827000-memory.dmp

Filesize
412KB

Download
memory/1568-76-0x0000000010000000-0x00000000100F8000-memory.dmp

Filesize
992KB

Download
memory/1568-79-0x0000000003650000-0x0000000003688000-memory.dmp

Filesize
224KB

Download
memory/1568-290-0x000000000A990000-0x000000000AD13000-memory.dmp

Filesize
3.5MB

Download
memory/1568-2-0x0000000000B40000-0x0000000000C48000-memory.dmp

Filesize
1.0MB

Download
memory/1568-4-0x00000000028A0000-0x00000000028BB000-memory.dmp

Filesize
108KB

Download
memory/1568-220-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/1568-188-0x00000000034D0000-0x00000000035C9000-memory.dmp

Filesize
996KB

Download
memory/2232-141-0x0000000010000000-0x00000000105F5000-memory.dmp

Filesize
6.0MB

Download
memory/2232-138-0x0000000010000000-0x00000000105F5000-memory.dmp

Filesize
6.0MB

Download
memory/2232-225-0x0000000001BC0000-0x0000000001BDB000-memory.dmp

Filesize
108KB

Download
memory/2232-226-0x0000000010000000-0x00000000105F5000-memory.dmp

Filesize
6.0MB

Download
memory/2232-100-0x0000000001BC0000-0x0000000001BDB000-memory.dmp

Filesize
108KB

Download
memory/2232-84-0x0000000001200000-0x0000000001801000-memory.dmp

Filesize
6.0MB

Download
memory/2756-0-0x0000000000630000-0x0000000000768000-memory.dmp

Filesize
1.2MB

Download
memory/2756-35-0x0000000000630000-0x0000000000768000-memory.dmp

Filesize
1.2MB

Download