xmrig | 4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3

General

Target

4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
Size

784KB
MD5

b83ea022c35428fbdd5b123a54750f60
SHA1

cd267a0a26f078844341581e44e76877830f881b
SHA256

4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3
SHA512

e45c499d288a43d6fed53bc00f4bb6399357fcd5dac7edc2c04685178f213de91e79d3778b859c1abe7fcf927b706528151e2fcf5b674596b50e09a302ab069a
SSDEEP

24576:6MD9CVudMjICJTsoImNiLrtzXRFVXV/06us6:6MD9ziFsoItjB

Score

10^/10

xmrig discovery miner upx

Malware Config

Signatures

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

XMRig Miner payload 7 IoCs

miner

resource	yara_rule
behavioral1/memory/800-2-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/800-15-0x0000000003230000-0x0000000003542000-memory.dmp	xmrig
behavioral1/memory/800-14-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/2188-19-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/2188-24-0x00000000033B0000-0x0000000003543000-memory.dmp	xmrig
behavioral1/memory/2188-25-0x0000000000400000-0x0000000000587000-memory.dmp	xmrig
behavioral1/memory/2188-34-0x0000000000400000-0x0000000000587000-memory.dmp	xmrig

Deletes itself 1 IoCs

pid	Process
2188	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Executes dropped EXE 1 IoCs

pid	Process
2188	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Loads dropped DLL 1 IoCs

pid	Process
800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/800-0-0x0000000000400000-0x0000000000712000-memory.dmp	upx
behavioral1/files/0x00080000000120ff-10.dat	upx
behavioral1/memory/2188-17-0x0000000000400000-0x0000000000712000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
2188	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 2188	800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe	29
PID 800 wrote to memory of 2188	800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe	29
PID 800 wrote to memory of 2188	800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe	29
PID 800 wrote to memory of 2188	800	4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe	29

C:\Users\Admin\AppData\Local\Temp\4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
"C:\Users\Admin\AppData\Local\Temp\4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
  C:\Users\Admin\AppData\Local\Temp\4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\4fb8938dbe45f7dd5eef0a4f65e6aaf4d87b0ff850be98c325b7da16140817e3N.exe

Filesize
784KB

MD5
c4ec8ab644da15368e6dde0be7c5947c

SHA1
bafac4e0d7334460897069d8e810bb37d639dcdb

SHA256
f2c518e692e60927729151716e48cee8c1197b66e1ec2f08217d2f9aceb73b04

SHA512
51cf8afd36d97d6a2043f2adcf94d320715625baf53673680b041db5c7c274066e6e035ad5f84792191bcdfafeac75974aa6e06047e07d57c2c1d7bf288d0b4e

Download Submit
memory/800-0-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/800-1-0x0000000000120000-0x00000000001E4000-memory.dmp

Filesize
784KB

Download
memory/800-2-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download
memory/800-15-0x0000000003230000-0x0000000003542000-memory.dmp

Filesize
3.1MB

Download
memory/800-14-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download
memory/2188-17-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2188-18-0x0000000000120000-0x00000000001E4000-memory.dmp

Filesize
784KB

Download
memory/2188-19-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download
memory/2188-24-0x00000000033B0000-0x0000000003543000-memory.dmp

Filesize
1.6MB

Download
memory/2188-25-0x0000000000400000-0x0000000000587000-memory.dmp

Filesize
1.5MB

Download
memory/2188-34-0x0000000000400000-0x0000000000587000-memory.dmp

Filesize
1.5MB

Download

Analysis

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