8b87749e2c1ccbcc5c3dbdde373dfb2f655f5b170b519e2b90f7bc8ccf95e9a4

Analysis

max time kernel
141s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-02-2024 05:14

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General

Target

a84ceadb0affd7fa9c028b88fa4a3c63.exe
Size

673KB
MD5

a84ceadb0affd7fa9c028b88fa4a3c63
SHA1

835f0dad620c7550c87eaa5e49920647c409bda5
SHA256

8b87749e2c1ccbcc5c3dbdde373dfb2f655f5b170b519e2b90f7bc8ccf95e9a4
SHA512

7e457b7870e818ec8c52c5e3287a37943ff42342fee7d35a5fd5dff699cf8d68455681856f40e4ea7acb177ac865a43a5fe7674bc21f1d722b23f3c34fe3bfb8
SSDEEP

12288:9YV39RQ5x8XL0uGHcrgKkmJQR8Zir2AlFzCQB0ok1WYFndzitT2h:9Ytg5aL0zHcxkm+6WY5di12h

Score

7^/10

persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1216-0-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/1216-5-0x0000000000400000-0x00000000004C7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a84ceadb0affd7fa9c028b88fa4a3c63.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\btc = "C:\\Users\\Admin\\AppData\\Roaming\\btc.exe"	a84ceadb0affd7fa9c028b88fa4a3c63.exe

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

System Information Discovery
T1082
Kills process with taskkill 3 IoCs
evasion

Processes:

taskkill.exetaskkill.exetaskkill.exe

pid process

1580 taskkill.exe
2620 taskkill.exe
2528 taskkill.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 1580 taskkill.exe
Token: SeDebugPrivilege 2528 taskkill.exe
Token: SeDebugPrivilege 2620 taskkill.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a84ceadb0affd7fa9c028b88fa4a3c63.exe

pid process

1216 a84ceadb0affd7fa9c028b88fa4a3c63.exe

pid	process
1580	taskkill.exe
2620	taskkill.exe
2528	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1580	taskkill.exe
Token: SeDebugPrivilege	2528	taskkill.exe
Token: SeDebugPrivilege	2620	taskkill.exe

pid	process
1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a84ceadb0affd7fa9c028b88fa4a3c63.exe

description	pid	process	target process
PID 1216 wrote to memory of 1580	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 1580	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 1580	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 1580	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2620	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2620	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2620	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2620	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2528	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2528	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2528	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe
PID 1216 wrote to memory of 2528	1216	a84ceadb0affd7fa9c028b88fa4a3c63.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\a84ceadb0affd7fa9c028b88fa4a3c63.exe
"C:\Users\Admin\AppData\Local\Temp\a84ceadb0affd7fa9c028b88fa4a3c63.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im bitcoin-miner*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1580

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im btc*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2620

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im miner*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2528

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1216-0-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1216-5-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download