215bfcaaedf4640aa020ccde2106a23329019e3654b38d20135c21b1d87fe015

Analysis

max time kernel
110s
max time network
94s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/07/2024, 11:40

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General

Target

ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe
Size

162KB
MD5

ba75ccb6b7d7b79f89d9f60d275bf6f0
SHA1

4361b5690cfb24eb566e355a1692838e23b07b22
SHA256

215bfcaaedf4640aa020ccde2106a23329019e3654b38d20135c21b1d87fe015
SHA512

1c8afd9f56b31a8ef029fa00abcffa386ad9da9385969fe5d45427886f6a89c304f28aa42a127f1eb5703a300aff409fcf1292a1c680fe599446800873ec202b
SSDEEP

1536:kVdmQr3Z5IfQmv81aypP1s3yX+tlehTzz:008JOfQm01F9s3yX+fehT3

Score

8^/10

evasion upx

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
2216	attrib.exe

Deletes itself 1 IoCs

pid	Process
2032	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2356	jaohost.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/files/0x000900000001225f-4.dat	upx
behavioral1/memory/2356-5-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/memory/2120-6-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral1/memory/2356-7-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\jaohost.exe	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe
File opened for modification	C:\Windows\Debug\jaohost.exe	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe
File opened for modification	C:\Windows\Debug\jaohost.exe	attrib.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	jaohost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	jaohost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2216	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	30
PID 2120 wrote to memory of 2216	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	30
PID 2120 wrote to memory of 2216	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	30
PID 2120 wrote to memory of 2216	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	30
PID 2120 wrote to memory of 2032	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	33
PID 2120 wrote to memory of 2032	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	33
PID 2120 wrote to memory of 2032	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	33
PID 2120 wrote to memory of 2032	2120	ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe	33

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2216	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe
"C:\Users\Admin\AppData\Local\Temp\ba75ccb6b7d7b79f89d9f60d275bf6f0N.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\jaohost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\BA75CC~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2032

C:\Windows\Debug\jaohost.exe
C:\Windows\Debug\jaohost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2356

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\jaohost.exe

Filesize
162KB

MD5
5abccaf6e6674b8225a96105ca722f78

SHA1
d4760b00be734a8a3956a27a7823a16677e620d1

SHA256
ef22cdf80713df3e12ab234094591ea9e34deca74b2de96704e498c6949d6ad3

SHA512
f49ff2c0264e89d761196a18900439dda76f219a135a4f85eaca50a88325223eefa347dbd848dc95aae4a01c54c64a0366016269532da5dee8a18af9434d8310

Download Submit
memory/2120-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2120-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2356-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2356-7-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads