50bfdf56b7719901cff812f2bb45b0c1912913f88d0eaf418a137c3a7708cb53

Analysis

max time kernel
157s
max time network
162s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05/11/2023, 19:52

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General

Target

NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe
Size

69KB
MD5

07f058d68b7fadbc0d9b67d596d3e860
SHA1

10158a48c498b529684fb525ad8ece2eb9b919b5
SHA256

50bfdf56b7719901cff812f2bb45b0c1912913f88d0eaf418a137c3a7708cb53
SHA512

39c211eb7b3760264dde9b8af5777e8c665a5e96eec0d6ee780d543abf3a65750247e750d2783a27bffe49e8f2460db253d2cbdd0b93bb9f4182e0fc7542787d
SSDEEP

768:OrItKyw5WHXfQmjIiIk9ecAa7pP1VMs96MyX9DdtldE9rIIIwjkMuuuR:Or3Z5IfQmv81a7pP1F3yXFdtnSjPuuuR

Score

8^/10

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
2656	attrib.exe

Deletes itself 1 IoCs

pid	Process
2816	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1380	iuyhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\iuyhost.exe	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe
File opened for modification	C:\Windows\Debug\iuyhost.exe	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe
File opened for modification	C:\Windows\Debug\iuyhost.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	iuyhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	iuyhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2656	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	27
PID 2940 wrote to memory of 2656	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	27
PID 2940 wrote to memory of 2656	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	27
PID 2940 wrote to memory of 2656	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	27
PID 2940 wrote to memory of 2816	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	30
PID 2940 wrote to memory of 2816	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	30
PID 2940 wrote to memory of 2816	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	30
PID 2940 wrote to memory of 2816	2940	NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe	30

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2656	attrib.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.07f058d68b7fadbc0d9b67d596d3e860.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\iuyhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEAS07~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2816

C:\Windows\Debug\iuyhost.exe
C:\Windows\Debug\iuyhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1380

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\iuyhost.exe

Filesize
69KB

MD5
2d506cedad305db04201e865b7b18a37

SHA1
42a41df5d1e302410d98a209ff2a0c855c39f0fc

SHA256
f033858280a83af33fabb9aa13f453af351c44effecb0fb8a9f91bec3c5b3203

SHA512
65df623401600d04a855f080129f1bb32114eb6dbbc3882bb3a5a2fcac2883133ffd23b6b46550cefe6b6f99154d36378ac5339697749e403a756c83c55d456c

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C:\Windows\debug\iuyhost.exe

Filesize
69KB

MD5
2d506cedad305db04201e865b7b18a37

SHA1
42a41df5d1e302410d98a209ff2a0c855c39f0fc

SHA256
f033858280a83af33fabb9aa13f453af351c44effecb0fb8a9f91bec3c5b3203

SHA512
65df623401600d04a855f080129f1bb32114eb6dbbc3882bb3a5a2fcac2883133ffd23b6b46550cefe6b6f99154d36378ac5339697749e403a756c83c55d456c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads