76d92f0417dcb1dd957a361c9f82e40edb91b0f0852ff9f38fdf792a905d9b8a

Analysis

max time kernel
136s
max time network
146s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13/10/2023, 20:40

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General

Target

NEAS.ce8e5f08dbc1939e381aab33bd420390.exe
Size

160KB
MD5

ce8e5f08dbc1939e381aab33bd420390
SHA1

3ab0f3934f1af200aa62fb203a3fed06c455d510
SHA256

76d92f0417dcb1dd957a361c9f82e40edb91b0f0852ff9f38fdf792a905d9b8a
SHA512

309aa27b31ea00a256781d534706e5a136935e00907e2badde12f6915e7591ad7787ca69a654da71169cb8edd6a4788539c909d941a78a14c91c027d5668bb2f
SSDEEP

3072:jBTW9N/m1cRFddrcmpo/YZxJOH6BYa80BgMtIfIQ+YDeg:jBTW9k1cRFd5cB/sxJJYG8IQ+Y/

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
2496	yzgwzlh.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2604-0-0x0000000000400000-0x000000000045E000-memory.dmp	upx
behavioral1/files/0x0035000000016d5f-7.dat	upx
behavioral1/files/0x0035000000016d5f-8.dat	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\yzgwzlh.exe	NEAS.ce8e5f08dbc1939e381aab33bd420390.exe
File created	C:\PROGRA~3\Mozilla\jhnnyvm.dll	yzgwzlh.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2604	NEAS.ce8e5f08dbc1939e381aab33bd420390.exe
2496	yzgwzlh.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2496	3064	taskeng.exe	30
PID 3064 wrote to memory of 2496	3064	taskeng.exe	30
PID 3064 wrote to memory of 2496	3064	taskeng.exe	30
PID 3064 wrote to memory of 2496	3064	taskeng.exe	30

C:\Users\Admin\AppData\Local\Temp\NEAS.ce8e5f08dbc1939e381aab33bd420390.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.ce8e5f08dbc1939e381aab33bd420390.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2604

C:\Windows\system32\taskeng.exe
taskeng.exe {D9EC3D08-D378-49BE-AC80-D70CC1E8FC7C} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:3064
- C:\PROGRA~3\Mozilla\yzgwzlh.exe
  C:\PROGRA~3\Mozilla\yzgwzlh.exe -chuvxnb
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\Mozilla\yzgwzlh.exe

Filesize
160KB

MD5
bc480f0c74d057413a1e4d9109bdb9a2

SHA1
2e7d7fa9ac5ecee22aedf679aaef01449fd79275

SHA256
86e1c0940d11c234b49c6574ad68352bf466396ea731b47b6942b35b5423c64b

SHA512
9bd72087ddb077cf6e193ff00e995cb2e9fa80384c6edf4044e387dfc6b2f6f691e1d851edb1c521ce6f718cf2c17718cb7ba17ed53935b6e2218d438d3e11bb

Download Submit
C:\PROGRA~3\Mozilla\yzgwzlh.exe

Filesize
160KB

MD5
bc480f0c74d057413a1e4d9109bdb9a2

SHA1
2e7d7fa9ac5ecee22aedf679aaef01449fd79275

SHA256
86e1c0940d11c234b49c6574ad68352bf466396ea731b47b6942b35b5423c64b

SHA512
9bd72087ddb077cf6e193ff00e995cb2e9fa80384c6edf4044e387dfc6b2f6f691e1d851edb1c521ce6f718cf2c17718cb7ba17ed53935b6e2218d438d3e11bb

Download Submit
memory/2496-9-0x0000000000520000-0x000000000057B000-memory.dmp

Filesize
364KB

Download
memory/2496-10-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2496-12-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2496-13-0x0000000000520000-0x000000000057B000-memory.dmp

Filesize
364KB

Download
memory/2604-0-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2604-2-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2604-1-0x00000000002F0000-0x000000000034B000-memory.dmp

Filesize
364KB

Download
memory/2604-4-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/2604-5-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2604-6-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download