7e99ebd5da7523d1d5a2511870560220cdc280acaab8a1e2c0f62344a86ab684

Analysis

max time kernel
253s
max time network
281s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 10:00

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General

Target

15b57d61e137e96d70cce644541adb9d.exe
Size

317KB
MD5

15b57d61e137e96d70cce644541adb9d
SHA1

943909ba5496f7a8b3faffca9d3ed061cec7311b
SHA256

7e99ebd5da7523d1d5a2511870560220cdc280acaab8a1e2c0f62344a86ab684
SHA512

96c2b492a25780007845fd6663b130aec270f4bda34ce3fb2cf7aa231712d1ff47e4e207ffc2cd627c4d41dab07ffe09e4954cc1d6a61b72ee2bf98ad5f9031d
SSDEEP

6144:WEFp3eC/4nXA13lwjbjHMGcnr6hDLCF1bzzFD5BrOSMInBOwUsD1N:WE4nX5Hrlcnr6hDLstzzYSMaBOwUsRN

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2376	lFjFmLj01803.exe

Loads dropped DLL 2 IoCs

pid	Process
2648	15b57d61e137e96d70cce644541adb9d.exe
2648	15b57d61e137e96d70cce644541adb9d.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2648-2-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2648-4-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2648-5-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2648-22-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2376-25-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2376-42-0x0000000000400000-0x00000000004B4000-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\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\lFjFmLj01803 = "C:\\ProgramData\\lFjFmLj01803\\lFjFmLj01803.exe"	lFjFmLj01803.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Internet Explorer\Main	lFjFmLj01803.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	15b57d61e137e96d70cce644541adb9d.exe
Token: SeDebugPrivilege	2376	lFjFmLj01803.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2376	lFjFmLj01803.exe
2376	lFjFmLj01803.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2376	lFjFmLj01803.exe
2376	lFjFmLj01803.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2376	lFjFmLj01803.exe
2376	lFjFmLj01803.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 2376	2648	15b57d61e137e96d70cce644541adb9d.exe	26
PID 2648 wrote to memory of 2376	2648	15b57d61e137e96d70cce644541adb9d.exe	26
PID 2648 wrote to memory of 2376	2648	15b57d61e137e96d70cce644541adb9d.exe	26
PID 2648 wrote to memory of 2376	2648	15b57d61e137e96d70cce644541adb9d.exe	26

C:\Users\Admin\AppData\Local\Temp\15b57d61e137e96d70cce644541adb9d.exe
"C:\Users\Admin\AppData\Local\Temp\15b57d61e137e96d70cce644541adb9d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2648
- C:\ProgramData\lFjFmLj01803\lFjFmLj01803.exe
  "C:\ProgramData\lFjFmLj01803\lFjFmLj01803.exe" "C:\Users\Admin\AppData\Local\Temp\15b57d61e137e96d70cce644541adb9d.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2376

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

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Downloads

\ProgramData\lFjFmLj01803\lFjFmLj01803.exe

Filesize
317KB

MD5
1fc19f266a8956b2cf3837705f3b231e

SHA1
73d47557cba7a9db7af1419d06de048da2babdb0

SHA256
62aa5a50c2dd38c291afc37985dc12cea77e5d097516e126ec0ef2b346c920e4

SHA512
5297278b207b06d3b27cb75efacffa0b36267f38d3cfb5f241c3d5728f405519fdf06f1628f590f9d4b2d33aa5bc748ca69c76cfa8a3d2c55cd94b26dd8bc036

Download Submit
memory/2376-25-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2376-42-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2648-0-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2648-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2648-2-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2648-4-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2648-5-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2648-22-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads