920dfc7879b33498bae81b3d391b24830ee888bbe8ef4f7307a69d391493eb1a

Analysis

max time kernel
147s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2023 14:18

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General

Target

NEAS.bae0fac75a078d31e24fec4c92025290.exe
Size

370KB
MD5

bae0fac75a078d31e24fec4c92025290
SHA1

6669d0df77789b88ee9e419756e4754a02ed6134
SHA256

920dfc7879b33498bae81b3d391b24830ee888bbe8ef4f7307a69d391493eb1a
SHA512

b1da20b1e8f1fdbde1f38d10ea6a98fa21857443cc8dd24fc19cca5aab35da8ae8a774eaccae3f8e6f33458652863fb75fb75f2638404d64ffa188fe5868475f
SSDEEP

6144:9bpGtfoVtScw2RCgrzItQB2bpGtfoVtScw:TGtAtScw3qEKBYGtAtScw

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
824	CJIAI.EXE

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	CJIAI.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\UELPYMR.EXE \"%1\" %*"	CJIAI.EXE

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2008-0-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/files/0x000100000000002a-10.dat	upx
behavioral2/files/0x0007000000022e63-21.dat	upx
behavioral2/memory/824-23-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/files/0x0007000000022e63-22.dat	upx
behavioral2/memory/2008-25-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-26-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-27-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-28-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-32-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-33-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-34-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-35-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-36-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-37-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-38-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-39-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-40-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-41-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-42-0x0000000000400000-0x000000000046E000-memory.dmp	upx
behavioral2/memory/824-43-0x0000000000400000-0x000000000046E000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VYNJJ.EXE = "C:\\Program Files (x86)\\VYNJJ.EXE"	NEAS.bae0fac75a078d31e24fec4c92025290.exe

Enumerates connected drives 3 TTPs 34 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\O:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\R:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\I:	CJIAI.EXE
File opened (read-only)	\??\Q:	CJIAI.EXE
File opened (read-only)	\??\R:	CJIAI.EXE
File opened (read-only)	\??\T:	CJIAI.EXE
File opened (read-only)	\??\H:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\T:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\G:	CJIAI.EXE
File opened (read-only)	\??\H:	CJIAI.EXE
File opened (read-only)	\??\M:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\S:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\E:	CJIAI.EXE
File opened (read-only)	\??\L:	CJIAI.EXE
File opened (read-only)	\??\O:	CJIAI.EXE
File opened (read-only)	\??\S:	CJIAI.EXE
File opened (read-only)	\??\L:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\Q:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\K:	CJIAI.EXE
File opened (read-only)	\??\K:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\I:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\N:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\E:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\U:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\V:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\J:	CJIAI.EXE
File opened (read-only)	\??\M:	CJIAI.EXE
File opened (read-only)	\??\G:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\U:	CJIAI.EXE
File opened (read-only)	\??\V:	CJIAI.EXE
File opened (read-only)	\??\J:	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened (read-only)	\??\N:	CJIAI.EXE
File opened (read-only)	\??\P:	CJIAI.EXE
File opened (read-only)	\??\P:	NEAS.bae0fac75a078d31e24fec4c92025290.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\CJIAI.EXE	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened for modification	C:\Program Files (x86)\CJIAI.EXE	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File created	C:\Program Files (x86)\VYNJJ.EXE	NEAS.bae0fac75a078d31e24fec4c92025290.exe
File opened for modification	C:\Program Files (x86)\VYNJJ.EXE	NEAS.bae0fac75a078d31e24fec4c92025290.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\UELPYMR.EXE	CJIAI.EXE

Modifies registry class 18 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "F:\\$RECYCLE.BIN\\NMKZAOI.EXE %1"	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\UELPYMR.EXE \"%1\" %*"	CJIAI.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Program Files (x86)\\VYNJJ.EXE \"%1\""	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open\command\ = "F:\\$RECYCLE.BIN\\NMKZAOI.EXE %1"	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "F:\\$RECYCLE.BIN\\NMKZAOI.EXE \"%1\""	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQfile\shell\open\command\ = "C:\\Program Files (x86)\\VYNJJ.EXE \"%1\" %*"	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QQQ.file\shell\open	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inffile\shell\open\command\ = "C:\\Program Files (x86)\\VYNJJ.EXE %1"	NEAS.bae0fac75a078d31e24fec4c92025290.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	CJIAI.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
824	CJIAI.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 824	2008	NEAS.bae0fac75a078d31e24fec4c92025290.exe	86
PID 2008 wrote to memory of 824	2008	NEAS.bae0fac75a078d31e24fec4c92025290.exe	86
PID 2008 wrote to memory of 824	2008	NEAS.bae0fac75a078d31e24fec4c92025290.exe	86

C:\Users\Admin\AppData\Local\Temp\NEAS.bae0fac75a078d31e24fec4c92025290.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.bae0fac75a078d31e24fec4c92025290.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Program Files (x86)\CJIAI.EXE
  "C:\Program Files (x86)\CJIAI.EXE"
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Enumerates connected drives
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  PID:824

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

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\CJIAI.EXE

Filesize
371KB

MD5
6ea93b70147cad3cb0b1cd7bd03910d2

SHA1
7d17a5fd4af118946772b0def4a561ac5cb86392

SHA256
70312220bc808eafd1d6e28c9287873aa8b6229945b567de83a59ea8f57df46a

SHA512
6eaedcc1b4bfa14617de761e57a8fd5f1309c896fb685cab2295b05630140900b301a0a1623a06f4ca5101eab6a6637dd6c3938d41e7e52776219c658ab39628

Download Submit
C:\Program Files (x86)\CJIAI.EXE

Filesize
371KB

MD5
6ea93b70147cad3cb0b1cd7bd03910d2

SHA1
7d17a5fd4af118946772b0def4a561ac5cb86392

SHA256
70312220bc808eafd1d6e28c9287873aa8b6229945b567de83a59ea8f57df46a

SHA512
6eaedcc1b4bfa14617de761e57a8fd5f1309c896fb685cab2295b05630140900b301a0a1623a06f4ca5101eab6a6637dd6c3938d41e7e52776219c658ab39628

Download Submit
F:\$RECYCLE.BIN\NMKZAOI.EXE

Filesize
371KB

MD5
1356b22c5f919fb6b3ef26ce9e967275

SHA1
1ad266e9e99f683d610902fb953940787515f6a1

SHA256
be05e2e6231a95f64e256b16502d9eeba5f3cb405867557e6385511d49986487

SHA512
02c4485a5e13b300b42ff49c1a8236ec1c5129608b8a8b603e69015af4ad4d5fda381a368f78889c04574f70c9608c700c2cf7efdb51474bbdbc864277aea56f

Download Submit
\??\c:\filedebug

Filesize
315B

MD5
ef29fa2a3a2fe2f4f009c5764657d559

SHA1
03a23d7a4cb3f86efac3d3840d195843d30d2a5e

SHA256
dd10ff1e7032ef1a23d9a8d6f243d138b5b5a792665d05a246356ddae0480bd8

SHA512
435f67f631db8074a12ea7d0b00ca3d02ebaf4020255e5659afa54818c36573241c3da4e97ac1951c6ce6c03b8506e5275236cf896fd1e8a041165472c37e4a0

Download Submit
memory/824-38-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-33-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-43-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-24-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/824-26-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-27-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-28-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-42-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-32-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-23-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-34-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-35-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-36-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-37-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-41-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-39-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/824-40-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2008-0-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/2008-2-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/2008-25-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads