xmrig | b31dfb107533d6f9dedc853d1209e5fd22c2b9c700893d1b43600bf9f2c9005d

General

Target

c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
Size

784KB
MD5

c858e6d0638a21d9b7ce8809948500a8
SHA1

929db10219a045a77f3f2f987e1cb2b0eb440708
SHA256

b31dfb107533d6f9dedc853d1209e5fd22c2b9c700893d1b43600bf9f2c9005d
SHA512

c8b92216528cf343fd6ea9c40a7560921dbabeb5f2ac9159423e6640b179f6853195cc2b41ae569c45d19f1c48768801c3a2e06340c88155f10de8a27b53908e
SSDEEP

12288:e70cBrp2W3fTcyQdYwL0kBr26MVjtL2ZqGDlCMPf7AKCUq4XLe6ynykE7rVA3sD:e70cV8YLokkUjF2ArMPMKq4Zyyf/VWs

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/2220-2-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/2220-14-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/1772-23-0x0000000000400000-0x0000000000587000-memory.dmp	xmrig
behavioral1/memory/1772-18-0x0000000000400000-0x0000000000593000-memory.dmp	xmrig
behavioral1/memory/1772-32-0x0000000003040000-0x00000000031D3000-memory.dmp	xmrig
behavioral1/memory/1772-33-0x00000000005A0000-0x000000000071F000-memory.dmp	xmrig
behavioral1/memory/1772-34-0x0000000000400000-0x0000000000587000-memory.dmp	xmrig

Deletes itself 1 IoCs

pid	Process
1772	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000400000-0x0000000000712000-memory.dmp	upx
behavioral1/files/0x0009000000012119-8.dat	upx
behavioral1/memory/2220-15-0x0000000003270000-0x0000000003582000-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	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
1772	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 1772	2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe	31
PID 2220 wrote to memory of 1772	2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe	31
PID 2220 wrote to memory of 1772	2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe	31
PID 2220 wrote to memory of 1772	2220	c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:1772

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\c858e6d0638a21d9b7ce8809948500a8_JaffaCakes118.exe

Filesize
784KB

MD5
8dd54011377c60c1fa50c92c6d2e64c6

SHA1
b55025144abc04bea4873d2d9c6dcc7508e381d0

SHA256
d6c20a817701f497afc68103a94a24a0180846ce5872540374873dbff13566c8

SHA512
fca899da55732643195151b3e92ee1a9d24e42043a9e25bd4ae1fcf9e613a678b2db793bb09327c68599f42c47f08404dfdb4bbc27dac717f457c31d39c8deb0

Download Submit
memory/1772-17-0x0000000000200000-0x00000000002C4000-memory.dmp

Filesize
784KB

Download
memory/1772-23-0x0000000000400000-0x0000000000587000-memory.dmp

Filesize
1.5MB

Download
memory/1772-18-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download
memory/1772-32-0x0000000003040000-0x00000000031D3000-memory.dmp

Filesize
1.6MB

Download
memory/1772-33-0x00000000005A0000-0x000000000071F000-memory.dmp

Filesize
1.5MB

Download
memory/1772-34-0x0000000000400000-0x0000000000587000-memory.dmp

Filesize
1.5MB

Download
memory/2220-0-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2220-2-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download
memory/2220-1-0x0000000000120000-0x00000000001E4000-memory.dmp

Filesize
784KB

Download
memory/2220-15-0x0000000003270000-0x0000000003582000-memory.dmp

Filesize
3.1MB

Download
memory/2220-14-0x0000000000400000-0x0000000000593000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing