0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138

Analysis

max time kernel
111s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 10:43

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General

Target

0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe
Size

70KB
MD5

58a1ceb0ba5d085c888359c2c1e21a10
SHA1

d449dbf48e9ab18171296b7f0804b0f55ddf2245
SHA256

0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138
SHA512

0e7fb91c34d983fd96acbdc08d69d0cec00584d1d617397058016148c6baa3448ef8cee31da318386b19d3844683eabacb97bd6dbd5c49ed52db41e04ca79a83
SSDEEP

768:urItKyw5WHXfQmjIiIk9ecAaHSHMb96FyXRDLdXDffff3U:ur3Z5IfQmv81ayo2yXpZX4

Score

8^/10

defense_evasion discovery evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
424	attrib.exe

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	zewhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\zewhost.exe	attrib.exe
File created	C:\Windows\Debug\zewhost.exe	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe
File opened for modification	C:\Windows\Debug\zewhost.exe	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe

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 4 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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zewhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 424	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	82
PID 4056 wrote to memory of 424	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	82
PID 4056 wrote to memory of 424	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	82
PID 4056 wrote to memory of 4412	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	85
PID 4056 wrote to memory of 4412	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	85
PID 4056 wrote to memory of 4412	4056	0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe	85

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
424	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe
"C:\Users\Admin\AppData\Local\Temp\0622eeb1296b57792b3cb387d59a7f2855e9b430e888702c55f133bae72d7138N.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\zewhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\0622EE~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4412

C:\Windows\Debug\zewhost.exe
C:\Windows\Debug\zewhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\zewhost.exe

Filesize
70KB

MD5
c15efa9263fc931a21dfbda623f4e59d

SHA1
a43dfae54d4d7cb0cefd9bdb2f7eb8926f543239

SHA256
129bda98bde27251af9787338abed19b63114f8965cdb3a0c4c86e91d9e611bd

SHA512
70cf4482a1c90ee9e757ca4920695c3cecca825789042834b2d453c64e71eccd6d5a47740ccf0e75637f2eb55136b600907f7d274e2644d56b2b5311996b7bc1

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads