6d87c385194f0def116818468b69ad2b3ee4ac94700e006cdf90aff7f3daf012

Analysis

max time kernel
181s
max time network
79s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 07:57

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General

Target

1072a83c193e77a54f1935b2c1f4934a.exe
Size

1.0MB
MD5

1072a83c193e77a54f1935b2c1f4934a
SHA1

d942081ab814ff8f7fbc0980113466c7acf4f688
SHA256

6d87c385194f0def116818468b69ad2b3ee4ac94700e006cdf90aff7f3daf012
SHA512

75cc4ec31c213e191cfad58798e4086fc357a8f46d3eb7419ea570ff2885433a85c6730722aaae0ae070638c1f97f1acc54cbaa755868024cc40a115b8566e52
SSDEEP

12288:rbpHYUKy5U1bo9t8DMRSW9vbciUiLuAvOxMt11i27QitjNUUw:r5sJo6YrFUiyAak11LtjNw

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2580	svchest000.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2304-0-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2304-1-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2304-9-0x00000000027C0000-0x0000000002957000-memory.dmp	upx
behavioral1/files/0x000d000000013397-8.dat	upx
behavioral1/files/0x000d000000013397-7.dat	upx
behavioral1/memory/2580-13-0x0000000000400000-0x0000000000597000-memory.dmp	upx
behavioral1/memory/2304-14-0x0000000000400000-0x0000000000597000-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\Kris = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1072a83c193e77a54f1935b2c1f4934a.exe"	1072a83c193e77a54f1935b2c1f4934a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2304	1072a83c193e77a54f1935b2c1f4934a.exe
2580	svchest000.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	\??\c:\Windows\BJ.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File opened for modification	\??\c:\Windows\BJ.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File created	\??\c:\Windows\svchest000.exe	1072a83c193e77a54f1935b2c1f4934a.exe
File opened for modification	\??\c:\Windows\svchest000.exe	1072a83c193e77a54f1935b2c1f4934a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2580	2304	1072a83c193e77a54f1935b2c1f4934a.exe	29
PID 2304 wrote to memory of 2580	2304	1072a83c193e77a54f1935b2c1f4934a.exe	29
PID 2304 wrote to memory of 2580	2304	1072a83c193e77a54f1935b2c1f4934a.exe	29
PID 2304 wrote to memory of 2580	2304	1072a83c193e77a54f1935b2c1f4934a.exe	29

C:\Users\Admin\AppData\Local\Temp\1072a83c193e77a54f1935b2c1f4934a.exe
"C:\Users\Admin\AppData\Local\Temp\1072a83c193e77a54f1935b2c1f4934a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2304
- \??\c:\Windows\svchest000.exe
  c:\Windows\svchest000.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:2580

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:\Windows\svchest000.exe

Filesize
129KB

MD5
8bac91aac7ead78ffef13eae9908df85

SHA1
b183e425cbd0869a2a8f6afe45c58bd7c3e260b2

SHA256
19c38884defb035cae493c7b766eacdba213ecf05fec7748a6e2a590e028769f

SHA512
313b81cf798a003ed39ca9a17b490f01060a97ce06a0e924ceb5d634a7cc6d7e560696931dfaa2168c278052cf3879588d0caf93e1eef20d539e1fb66b0379ac

Download Submit
C:\Windows\svchest000.exe

Filesize
167KB

MD5
73ffdf11b64c6ea7c135ccba529ba50e

SHA1
7cb8292db0a1e7120739b49d72e204a6c2a07f17

SHA256
327d3e5a5ebdd40e545c8602d3f69d33d7d63a07699934868b9870906711d39f

SHA512
2fcb017d03c2e4ee360dcf5569e55afb47c32a5ffd7aa4f416a056001920097b7d22c6f1b9197874ea9fa223b4415f90e0ee279a8c9ee20d68bdbb1632dad055

Download Submit
memory/2304-0-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2304-1-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2304-9-0x00000000027C0000-0x0000000002957000-memory.dmp

Filesize
1.6MB

Download
memory/2304-14-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download
memory/2304-15-0x00000000027C0000-0x0000000002957000-memory.dmp

Filesize
1.6MB

Download
memory/2580-13-0x0000000000400000-0x0000000000597000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads