f5e5bf111104c7065a8ead61e09596137486c5f607b168d0342431395960c974

Analysis

max time kernel
154s
max time network
143s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12-10-2023 15:10

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General

Target

b1691898a51679131fc1764cc0042998_JC.exe
Size

57KB
MD5

b1691898a51679131fc1764cc0042998
SHA1

711be9bd9fb9feba8ddf12427a7571bd2fd38d49
SHA256

f5e5bf111104c7065a8ead61e09596137486c5f607b168d0342431395960c974
SHA512

5bdb0dc668aae08467dc953fdf2335cdffaf1aa3d99ce75619c047fe1db16fcb193153a4edaf912c9c28454699b6b6bc2caae8ccb6e94f0acb7c5b62a65389c9
SSDEEP

384:+5rDuuOFpEauMLfQDb2pproT/z4m5m1GJE6Al6z8yXDTLhrNSSSfuuuu:MDcpEBMLfQcubV5wGE96YyXDTLdNSSSJ

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
2988	attrib.exe

Deletes itself 1 IoCs

pid	Process
2776	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1808	jaohost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\jaohost.exe	b1691898a51679131fc1764cc0042998_JC.exe
File opened for modification	C:\Windows\Debug\jaohost.exe	attrib.exe
File created	C:\Windows\Debug\jaohost.exe	b1691898a51679131fc1764cc0042998_JC.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1680	b1691898a51679131fc1764cc0042998_JC.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2988	1680	b1691898a51679131fc1764cc0042998_JC.exe	27
PID 1680 wrote to memory of 2988	1680	b1691898a51679131fc1764cc0042998_JC.exe	27
PID 1680 wrote to memory of 2988	1680	b1691898a51679131fc1764cc0042998_JC.exe	27
PID 1680 wrote to memory of 2988	1680	b1691898a51679131fc1764cc0042998_JC.exe	27
PID 1680 wrote to memory of 2776	1680	b1691898a51679131fc1764cc0042998_JC.exe	30
PID 1680 wrote to memory of 2776	1680	b1691898a51679131fc1764cc0042998_JC.exe	30
PID 1680 wrote to memory of 2776	1680	b1691898a51679131fc1764cc0042998_JC.exe	30
PID 1680 wrote to memory of 2776	1680	b1691898a51679131fc1764cc0042998_JC.exe	30

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2988	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b1691898a51679131fc1764cc0042998_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b1691898a51679131fc1764cc0042998_JC.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680
- 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:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B16918~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2776

C:\Windows\Debug\jaohost.exe
C:\Windows\Debug\jaohost.exe
1⤵
- Executes dropped EXE
PID:1808

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Debug\jaohost.exe

Filesize
57KB

MD5
96051a736df37ee8114ee5f6b259e7d6

SHA1
44eae4ec2cb574a5a3b53ea18d8aaa631b0c3dd2

SHA256
2c1c0ef1c9c574d5ec7b1a747fbc44bd5c8dc1590e2c7aeff4b4d1bc33ef3a98

SHA512
346cf946fa3f316d1d1d5e4d2eb5e8f43ed7131ea92173d78f013a54d61b209d51c8a450dd4902d612f4bbc7125153918d13f5db418f7a8926af137e0137fa0f

Download Submit
C:\Windows\debug\jaohost.exe

Filesize
57KB

MD5
96051a736df37ee8114ee5f6b259e7d6

SHA1
44eae4ec2cb574a5a3b53ea18d8aaa631b0c3dd2

SHA256
2c1c0ef1c9c574d5ec7b1a747fbc44bd5c8dc1590e2c7aeff4b4d1bc33ef3a98

SHA512
346cf946fa3f316d1d1d5e4d2eb5e8f43ed7131ea92173d78f013a54d61b209d51c8a450dd4902d612f4bbc7125153918d13f5db418f7a8926af137e0137fa0f

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads