bitrat | caf48b67e7bb94a178426fc7ce6b9ed50ffb2f3813a7c68900f21bfffb24e44f

max time kernel
102s
max time network
107s
platform
windows11-21h2_x64
resource
win11-20240214-en
resource tags

arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
submitted
17-02-2024 23:58

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General

Target

stub_tor.exe
Size

7.8MB
MD5

c76390d9e1052d9e708940d67b5c135d
SHA1

a370a73a9dd746584428e8a939288ecffd3c80f7
SHA256

caf48b67e7bb94a178426fc7ce6b9ed50ffb2f3813a7c68900f21bfffb24e44f
SHA512

4d2d38d8719cdac8a406cfa96944ee99d2d926511e64d6b6aa964d40d0d9ddb1dc6e4e6253bcb1e77b32613c0b4409ab32ea54c476018fee963574edb043dd3b
SSDEEP

196608:oIRcbH4jSteTGvExwhzav1yo31CPwDv3uFZjeg2EeJUO9WLQkDxtw3iFFrS6XOf:odHsfuExwZ6v1CPwDv3uFteg2EeJUO9E

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

7sbl4dpbubwjjghdquwg47fyq7rookd4bgm2ypm2kjzkivd7tomvczqd.onion:440

Attributes

communication_password
4124bc0a9335c27f086f24ba207a4912
install_dir
Minecraft
install_file
Runtime_Broker
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

ACProtect 1.3x - 1.4x DLL software 7 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\a5b260eb\tor\libcrypto-1_1.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssl-1_1.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\libevent-2-1-6.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\zlib1.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\libgcc_s_sjlj-1.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\libwinpthread-1.dll	acprotect
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssp-0.dll	acprotect

Executes dropped EXE 2 IoCs

Processes:

tor.exetor.exe

pid process

2364 tor.exe
3912 tor.exe

Loads dropped DLL 15 IoCs

Processes:

tor.exetor.exe

pid	process
2364	tor.exe
2364	tor.exe
2364	tor.exe
2364	tor.exe
2364	tor.exe
2364	tor.exe
2364	tor.exe
2364	tor.exe
3912	tor.exe
3912	tor.exe
3912	tor.exe
3912	tor.exe
3912	tor.exe
3912	tor.exe
3912	tor.exe

UPX packed file 35 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libcrypto-1_1.dll	upx
behavioral1/memory/2364-19-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssl-1_1.dll	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libevent-2-1-6.dll	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\zlib1.dll	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libgcc_s_sjlj-1.dll	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libwinpthread-1.dll	upx
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssp-0.dll	upx
behavioral1/memory/2364-37-0x00000000735C0000-0x0000000073688000-memory.dmp	upx
behavioral1/memory/2364-38-0x00000000734F0000-0x00000000735BE000-memory.dmp	upx
behavioral1/memory/2364-39-0x00000000734C0000-0x00000000734E4000-memory.dmp	upx
behavioral1/memory/2364-41-0x00000000731F0000-0x00000000734BF000-memory.dmp	upx
behavioral1/memory/2364-42-0x0000000073160000-0x00000000731E8000-memory.dmp	upx
behavioral1/memory/2364-43-0x0000000073050000-0x000000007315A000-memory.dmp	upx
behavioral1/memory/2364-44-0x0000000073690000-0x00000000736D9000-memory.dmp	upx
behavioral1/memory/2364-65-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-73-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-81-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-83-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-96-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-104-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-112-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/2364-120-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/3912-138-0x00000000734F0000-0x00000000735BE000-memory.dmp	upx
behavioral1/memory/3912-137-0x00000000735C0000-0x0000000073688000-memory.dmp	upx
behavioral1/memory/3912-140-0x00000000734C0000-0x00000000734E4000-memory.dmp	upx
behavioral1/memory/3912-145-0x0000000073050000-0x000000007315A000-memory.dmp	upx
behavioral1/memory/3912-146-0x0000000073160000-0x00000000731E8000-memory.dmp	upx
behavioral1/memory/3912-147-0x00000000731F0000-0x00000000734BF000-memory.dmp	upx
behavioral1/memory/3912-139-0x0000000073690000-0x00000000736D9000-memory.dmp	upx
behavioral1/memory/3912-156-0x0000000000EA0000-0x00000000012A4000-memory.dmp	upx
behavioral1/memory/3912-159-0x00000000734F0000-0x00000000735BE000-memory.dmp	upx
behavioral1/memory/3912-158-0x00000000735C0000-0x0000000073688000-memory.dmp	upx
behavioral1/memory/3912-172-0x0000000000EA0000-0x00000000012A4000-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:

stub_tor.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-579863200-1180944266-3450597144-1000\Software\Microsoft\Windows\CurrentVersion\Run\Runtime_Broker = "C:\\Users\\Admin\\AppData\\Local\\Minecraft\\Runtime_Broker"	stub_tor.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 myexternalip.com
38 myexternalip.com
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

stub_tor.exe

pid process

1504 stub_tor.exe
1504 stub_tor.exe
1504 stub_tor.exe
1504 stub_tor.exe
1504 stub_tor.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
NTFS ADS 1 IoCs

Processes:

stub_tor.exe

description ioc process

File created C:\Users\Admin\AppData\Local:18-02-2024 stub_tor.exe

flow	ioc
8	myexternalip.com
38	myexternalip.com

description	ioc	process
File created	C:\Users\Admin\AppData\Local:18-02-2024	stub_tor.exe

Suspicious behavior: RenamesItself 19 IoCs

Processes:

stub_tor.exe

pid	process
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe
1504	stub_tor.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

stub_tor.exe

description pid process

Token: SeShutdownPrivilege 1504 stub_tor.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

stub_tor.exe

pid process

1504 stub_tor.exe
1504 stub_tor.exe

description	pid	process
Token: SeShutdownPrivilege	1504	stub_tor.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

stub_tor.exe

description	pid	process	target process
PID 1504 wrote to memory of 2364	1504	stub_tor.exe	tor.exe
PID 1504 wrote to memory of 2364	1504	stub_tor.exe	tor.exe
PID 1504 wrote to memory of 2364	1504	stub_tor.exe	tor.exe
PID 1504 wrote to memory of 3912	1504	stub_tor.exe	tor.exe
PID 1504 wrote to memory of 3912	1504	stub_tor.exe	tor.exe
PID 1504 wrote to memory of 3912	1504	stub_tor.exe	tor.exe

C:\Users\Admin\AppData\Local\Temp\stub_tor.exe
"C:\Users\Admin\AppData\Local\Temp\stub_tor.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- NTFS ADS
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
"C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2364

C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
"C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3912

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

C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-certs
Filesize
20KB

MD5
a57addd7c7452194a9cae1cb4b95f2d9

SHA1
ef3cda9f525589e2ddd43bc1ac91ae458591aeae

SHA256
91961c72d3e8d405b0c2d5728f0a25eb8d74cd3efd711254fa227cd864e2004b

SHA512
a75431b21be18d68b673cb5902e6fa9bb23b9e61ae6276c3330b2b9fab4de5563ab59e3eca4c845eda12bf58aa1064435df400344c5b1110706198fee7732a64

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdesc-consensus
Filesize
2.6MB

MD5
1d0e7e383ca56c8ad4bca066cfa3f45f

SHA1
8ac8c6524d0f0d5653c9a08336bcf68b8a9f1c8f

SHA256
c84886c0416cc99f58be9105ff56a7345786f25c8f4c1ac3b9ac3a4c7e2540cd

SHA512
ddd1c781ab689ea29588e7983853d5fa25737813b84f4cb06cf3859ef76b3ad98d01962d146ca92cbfd7013291aa83b61ddda7bd7aae0f668552e19565047810

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
Filesize
19.3MB

MD5
087f536c92216ccaaaf1727167734b8c

SHA1
99504d674f37eb78b6bafeb1a2b7b6562c4e9a9d

SHA256
791b2676f1dcc4924a21ff8887f1dbc6ae4a10e013bcb98bc6fd0093cbb17ccd

SHA512
82b741e765373f463f6b51b170441e5dc705039ca191a1c3e5a2f9d05af7659aed6f15d30c2d93f0cf92a918e23d3f3bc85d38b2ac90580d43462611769a7daf

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
Filesize
9.1MB

MD5
cd0d0fdba1a75c0ef540ba1c5b39fd9d

SHA1
16685e046b2daca9427ef24f5551f2b2f2083795

SHA256
4c3c38e04e986becb647f8b4a90dd9455d31eff5750ddadf720645ae3023106c

SHA512
721f0f54773b90bd8b7989d4c5a324ffaff8f8c347b12455f3c841010a7ad4c05aa21f856bb8c366fe6c021e14915d750209c591db57d637aa1c21448242b8bf

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\data\state
Filesize
232B

MD5
fb39e4fe3a91fdc39f04bf8eb570ead4

SHA1
da82da5d6e1c375256de05673b812e689b2dfd88

SHA256
b39dbb5763a379b9471c4a50ff5c6e2a662b0bb384df63f46097c6c07565f3aa

SHA512
b644a8b981582d86f3083f756492cf74a3988e77fd6f0d000ee9ed1879a3cb26853f0895eeed800de3a5d9b5d00b3cf7b6a2ee418d9490c5cb4882e816745901

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libcrypto-1_1.dll
Filesize
1.7MB

MD5
2384a02c4a1f7ec481adde3a020607d3

SHA1
7e848d35a10bf9296c8fa41956a3daa777f86365

SHA256
c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369

SHA512
1ac74dd2d863acd7415ef8b9490a5342865462fbabdad0645da22424b0d56f5e9c389a3d7c41386f2414d6c4715c79a6ddecb6e6cff29e98319e1fd1060f4503

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libevent-2-1-6.dll
Filesize
366KB

MD5
099983c13bade9554a3c17484e5481f1

SHA1
a84e69ad9722f999252d59d0ed9a99901a60e564

SHA256
b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838

SHA512
89f1a963de77873296395662d4150e3eff7a2d297fb9ec54ec06aa2e40d41e5f4fc4611e9bc34126d760c9134f2907fea3bebdf2fbbd7eaddad99f8e4be1f5e2

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libgcc_s_sjlj-1.dll
Filesize
286KB

MD5
b0d98f7157d972190fe0759d4368d320

SHA1
5715a533621a2b642aad9616e603c6907d80efc4

SHA256
2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5

SHA512
41ce56c428158533bf8b8ffe0a71875b5a3abc549b88d7d3e69acc6080653abea344d6d66fff39c04bf019fcaa295768d620377d85a933ddaf17f3d90df29496

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssl-1_1.dll
Filesize
439KB

MD5
c88826ac4bb879622e43ead5bdb95aeb

SHA1
87d29853649a86f0463bfd9ad887b85eedc21723

SHA256
c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f

SHA512
f733041ef35b9b8058fbcf98faa0d1fea5c0858fea941ecebbe9f083cd73e3e66323afffd8d734097fcdd5e6e59db4d94f51fca5874edbcd2a382d9ba6cd97b3

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libssp-0.dll
Filesize
88KB

MD5
2c916456f503075f746c6ea649cf9539

SHA1
fa1afc1f3d728c89b2e90e14ca7d88b599580a9d

SHA256
cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6

SHA512
1c1995e1aa7c33c597c64122395275861d9219e46d45277d4f1768a2e06227b353d5d77d6b7cb655082dc6fb9736ad6f7cfcc0c90e02776e27d50857e792e3fd

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\libwinpthread-1.dll
Filesize
188KB

MD5
d407cc6d79a08039a6f4b50539e560b8

SHA1
21171adbc176dc19aaa5e595cd2cd4bd1dfd0c71

SHA256
92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e

SHA512
378a10fed915591445d97c6d04e82d28008d8ea65e0e40c142b8ee59867035d561d4e103495c8f0d9c19b51597706ce0b450c25516aa0f1744579ffcd097ae0c

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
Filesize
973KB

MD5
5cfe61ff895c7daa889708665ef05d7b

SHA1
5e58efe30406243fbd58d4968b0492ddeef145f2

SHA256
f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5

SHA512
43b6f10391a863a21f70e05cee41900729c7543750e118ff5d74c0cac3d1383f10bcb73eade2a28b555a393cada4795e204246129b01ad9177d1167827dd68da

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\torrc
Filesize
157B

MD5
8ea874223f853aac5ea469ccc164a8f9

SHA1
70d31011547870c9f930496dbf9fb7ec296a8c28

SHA256
95e134044f370b2a96408d581f3c0381fe95388dae27c6d9598f44dc7d72b9ed

SHA512
fd1dc20219fbf4863926d90b5a2127b65e165656eac4493a80288d0c57fc309ed998b5d30fe8ce313987ee367fc4fe9b6026ff32d4391950d7f26ca7b6fdcdf2

Download Submit
C:\Users\Admin\AppData\Local\a5b260eb\tor\zlib1.dll
Filesize
52KB

MD5
add33041af894b67fe34e1dc819b7eb6

SHA1
6db46eb021855a587c95479422adcc774a272eeb

SHA256
8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183

SHA512
bafc441198d03f0e7fe804bab89283c389d38884d0f87d81b11950a9b79fcbf7b32be4bb16f4fcd9179b66f865c563c172a46b4514a6087ef0af64425a4b2cfa

Download Submit
memory/1504-0-0x0000000000400000-0x0000000000BD8000-memory.dmp

Filesize
7.8MB

Download
memory/1504-173-0x0000000072EC0000-0x0000000072EFC000-memory.dmp

Filesize
240KB

Download
memory/1504-1-0x00000000740C0000-0x00000000740FC000-memory.dmp

Filesize
240KB

Download
memory/1504-53-0x0000000072C30000-0x0000000072C6C000-memory.dmp

Filesize
240KB

Download
memory/2364-96-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-83-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-43-0x0000000073050000-0x000000007315A000-memory.dmp

Filesize
1.0MB

Download
memory/2364-42-0x0000000073160000-0x00000000731E8000-memory.dmp

Filesize
544KB

Download
memory/2364-41-0x00000000731F0000-0x00000000734BF000-memory.dmp

Filesize
2.8MB

Download
memory/2364-65-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-73-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-81-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-82-0x0000000001E70000-0x000000000213F000-memory.dmp

Filesize
2.8MB

Download
memory/2364-39-0x00000000734C0000-0x00000000734E4000-memory.dmp

Filesize
144KB

Download
memory/2364-40-0x0000000001E70000-0x000000000213F000-memory.dmp

Filesize
2.8MB

Download
memory/2364-104-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-112-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-120-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/2364-37-0x00000000735C0000-0x0000000073688000-memory.dmp

Filesize
800KB

Download
memory/2364-44-0x0000000073690000-0x00000000736D9000-memory.dmp

Filesize
292KB

Download
memory/2364-38-0x00000000734F0000-0x00000000735BE000-memory.dmp

Filesize
824KB

Download
memory/2364-19-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/3912-137-0x00000000735C0000-0x0000000073688000-memory.dmp

Filesize
800KB

Download
memory/3912-145-0x0000000073050000-0x000000007315A000-memory.dmp

Filesize
1.0MB

Download
memory/3912-146-0x0000000073160000-0x00000000731E8000-memory.dmp

Filesize
544KB

Download
memory/3912-147-0x00000000731F0000-0x00000000734BF000-memory.dmp

Filesize
2.8MB

Download
memory/3912-139-0x0000000073690000-0x00000000736D9000-memory.dmp

Filesize
292KB

Download
memory/3912-140-0x00000000734C0000-0x00000000734E4000-memory.dmp

Filesize
144KB

Download
memory/3912-156-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

Download
memory/3912-159-0x00000000734F0000-0x00000000735BE000-memory.dmp

Filesize
824KB

Download
memory/3912-158-0x00000000735C0000-0x0000000073688000-memory.dmp

Filesize
800KB

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memory/3912-172-0x0000000000EA0000-0x00000000012A4000-memory.dmp

Filesize
4.0MB

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memory/3912-138-0x00000000734F0000-0x00000000735BE000-memory.dmp

Filesize
824KB

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