bitrat | 849c5c0915f66536f76f5b82abf84a60dbca004613f1aedce7561110d79a2185

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 02:34

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General

Target

aac87e479dbe5e55246d09809cc5d93b.exe
Size

9.8MB
MD5

aac87e479dbe5e55246d09809cc5d93b
SHA1

dc7c83e35b284ce7ff236f5df3d1496655a28740
SHA256

849c5c0915f66536f76f5b82abf84a60dbca004613f1aedce7561110d79a2185
SHA512

34844332728beafbbeb250f98fc69a2fa12e1170814f445ade78fefa39a500e452f4c03c018a04fa75c836df341ca74136accc1e29d4a99c2c6c66de03165951
SSDEEP

196608:s8ylNuhqdOjOOL2M2p+YOuUxwhzav1yo31CPwDv3uFZjeg2EeJUO9WLQUDxtw3i1:JRPQ4YQxwZ6v1CPwDv3uFteg2EeJUO9I

Score

10^/10

bitrat trojan upx

Malware Config

Signatures

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

BitRAT payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1948-0-0x0000000000400000-0x0000000000DD8000-memory.dmp	family_bitrat
behavioral2/memory/1948-1-0x0000000000400000-0x0000000000DD8000-memory.dmp	family_bitrat
behavioral2/memory/1948-69-0x0000000000400000-0x0000000000DD8000-memory.dmp	family_bitrat

ACProtect 1.3x - 1.4x DLL software 7 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libcrypto-1_1.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\zlib1.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libgcc_s_sjlj-1.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libwinpthread-1.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssp-0.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssl-1_1.dll	acprotect
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libevent-2-1-6.dll	acprotect

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

aac87e479dbe5e55246d09809cc5d93b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	aac87e479dbe5e55246d09809cc5d93b.exe

Executes dropped EXE 1 IoCs

Processes:

winsys64.exe

pid process

3152 winsys64.exe

Loads dropped DLL 9 IoCs

Processes:

winsys64.exe

pid	process
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe
3152	winsys64.exe

UPX packed file 28 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe	upx
behavioral2/memory/3152-20-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libcrypto-1_1.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\zlib1.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libgcc_s_sjlj-1.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libwinpthread-1.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssp-0.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssl-1_1.dll	upx
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libevent-2-1-6.dll	upx
behavioral2/memory/3152-36-0x0000000074310000-0x00000000745DF000-memory.dmp	upx
behavioral2/memory/3152-37-0x00000000745E0000-0x00000000746A8000-memory.dmp	upx
behavioral2/memory/3152-38-0x0000000074210000-0x00000000742DE000-memory.dmp	upx
behavioral2/memory/3152-39-0x00000000741C0000-0x0000000074209000-memory.dmp	upx
behavioral2/memory/3152-41-0x0000000074130000-0x00000000741B8000-memory.dmp	upx
behavioral2/memory/3152-46-0x00000000742E0000-0x0000000074304000-memory.dmp	upx
behavioral2/memory/3152-42-0x0000000074020000-0x000000007412A000-memory.dmp	upx
behavioral2/memory/3152-61-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-62-0x0000000074310000-0x00000000745DF000-memory.dmp	upx
behavioral2/memory/3152-63-0x00000000745E0000-0x00000000746A8000-memory.dmp	upx
behavioral2/memory/3152-65-0x0000000074210000-0x00000000742DE000-memory.dmp	upx
behavioral2/memory/3152-81-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-88-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-101-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-112-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-120-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-128-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-139-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx
behavioral2/memory/3152-147-0x0000000000DB0000-0x00000000011B4000-memory.dmp	upx

Looks up external IP address via web service 9 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
50	myexternalip.com
56	myexternalip.com
88	myexternalip.com
91	myexternalip.com
93	myexternalip.com
94	myexternalip.com
51	myexternalip.com
87	myexternalip.com
90	myexternalip.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

aac87e479dbe5e55246d09809cc5d93b.exe

pid process

1948 aac87e479dbe5e55246d09809cc5d93b.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

aac87e479dbe5e55246d09809cc5d93b.exe

description pid process

Token: SeShutdownPrivilege 1948 aac87e479dbe5e55246d09809cc5d93b.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aac87e479dbe5e55246d09809cc5d93b.exe

pid process

1948 aac87e479dbe5e55246d09809cc5d93b.exe
1948 aac87e479dbe5e55246d09809cc5d93b.exe

pid	process
1948	aac87e479dbe5e55246d09809cc5d93b.exe

description	pid	process
Token: SeShutdownPrivilege	1948	aac87e479dbe5e55246d09809cc5d93b.exe

pid	process
1948	aac87e479dbe5e55246d09809cc5d93b.exe
1948	aac87e479dbe5e55246d09809cc5d93b.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

aac87e479dbe5e55246d09809cc5d93b.exe

description	pid	process	target process
PID 1948 wrote to memory of 3152	1948	aac87e479dbe5e55246d09809cc5d93b.exe	winsys64.exe
PID 1948 wrote to memory of 3152	1948	aac87e479dbe5e55246d09809cc5d93b.exe	winsys64.exe
PID 1948 wrote to memory of 3152	1948	aac87e479dbe5e55246d09809cc5d93b.exe	winsys64.exe

C:\Users\Admin\AppData\Local\Temp\aac87e479dbe5e55246d09809cc5d93b.exe
"C:\Users\Admin\AppData\Local\Temp\aac87e479dbe5e55246d09809cc5d93b.exe"
1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe
"C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe" -f torrc
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\18c4d7d0\tor\data\cached-microdesc-consensus.tmp
Filesize
2.6MB

MD5
aaaa95465fb9587c8f2f4a0159a2ec3d

SHA1
240dc17a7689f2dd638e6405f994c82701e6ca70

SHA256
ba0c8bfcdbe6e679b8f1fafb529772aaa5165b28f958f915dd598e818f94f5dd

SHA512
0330836632931fdb9c619ae882ee55174c85911e84c7a8a415c81b332c5f0566bedaf5c320e6a098be364ac871ec331655d300fdce78083c28d44c7da6b68ad4

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\data\cached-microdescs.new
Filesize
5.5MB

MD5
f9333280d652497e3f5f95be2eb8a58a

SHA1
44f2d75bed46fbf5017e528f2f51113b0541bb53

SHA256
86a19b3c569202089c0237f52b54cd69128de401acd40b93c6537453f986fe89

SHA512
05e7a2e6a19660f1beff5115daa8a1d887676b2a8e8a2c16106f96eb1466f497ee19fac8d81af9b499afc8592d2a9cdb04a58ab02c2a4f27201a860b5e9db259

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libcrypto-1_1.dll
Filesize
1.7MB

MD5
2384a02c4a1f7ec481adde3a020607d3

SHA1
7e848d35a10bf9296c8fa41956a3daa777f86365

SHA256
c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369

SHA512
1ac74dd2d863acd7415ef8b9490a5342865462fbabdad0645da22424b0d56f5e9c389a3d7c41386f2414d6c4715c79a6ddecb6e6cff29e98319e1fd1060f4503

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libevent-2-1-6.dll
Filesize
366KB

MD5
099983c13bade9554a3c17484e5481f1

SHA1
a84e69ad9722f999252d59d0ed9a99901a60e564

SHA256
b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838

SHA512
89f1a963de77873296395662d4150e3eff7a2d297fb9ec54ec06aa2e40d41e5f4fc4611e9bc34126d760c9134f2907fea3bebdf2fbbd7eaddad99f8e4be1f5e2

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libgcc_s_sjlj-1.dll
Filesize
286KB

MD5
b0d98f7157d972190fe0759d4368d320

SHA1
5715a533621a2b642aad9616e603c6907d80efc4

SHA256
2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5

SHA512
41ce56c428158533bf8b8ffe0a71875b5a3abc549b88d7d3e69acc6080653abea344d6d66fff39c04bf019fcaa295768d620377d85a933ddaf17f3d90df29496

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssl-1_1.dll
Filesize
439KB

MD5
c88826ac4bb879622e43ead5bdb95aeb

SHA1
87d29853649a86f0463bfd9ad887b85eedc21723

SHA256
c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f

SHA512
f733041ef35b9b8058fbcf98faa0d1fea5c0858fea941ecebbe9f083cd73e3e66323afffd8d734097fcdd5e6e59db4d94f51fca5874edbcd2a382d9ba6cd97b3

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libssp-0.dll
Filesize
88KB

MD5
2c916456f503075f746c6ea649cf9539

SHA1
fa1afc1f3d728c89b2e90e14ca7d88b599580a9d

SHA256
cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6

SHA512
1c1995e1aa7c33c597c64122395275861d9219e46d45277d4f1768a2e06227b353d5d77d6b7cb655082dc6fb9736ad6f7cfcc0c90e02776e27d50857e792e3fd

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\libwinpthread-1.dll
Filesize
188KB

MD5
d407cc6d79a08039a6f4b50539e560b8

SHA1
21171adbc176dc19aaa5e595cd2cd4bd1dfd0c71

SHA256
92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e

SHA512
378a10fed915591445d97c6d04e82d28008d8ea65e0e40c142b8ee59867035d561d4e103495c8f0d9c19b51597706ce0b450c25516aa0f1744579ffcd097ae0c

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\torrc
Filesize
139B

MD5
810ca57a4541aa0915723dd9a878a4f8

SHA1
bf5cbb30e140282febea89ade1b6f3c01a1614c4

SHA256
87d1de959d834f83a63d7b707ae81dceb521ed5169697e25797815e1025fdfd7

SHA512
833aaec0564f7a0a5f12643dc3cd90e581bea671a94162c899ab32b557c52ad6bd3f2b9195ae205051c5d46eb4d4a7b644f119dec5f041658d2a99c1cfe8662a

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe
Filesize
973KB

MD5
5cfe61ff895c7daa889708665ef05d7b

SHA1
5e58efe30406243fbd58d4968b0492ddeef145f2

SHA256
f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5

SHA512
43b6f10391a863a21f70e05cee41900729c7543750e118ff5d74c0cac3d1383f10bcb73eade2a28b555a393cada4795e204246129b01ad9177d1167827dd68da

Download Submit
C:\Users\Admin\AppData\Local\18c4d7d0\tor\zlib1.dll
Filesize
52KB

MD5
add33041af894b67fe34e1dc819b7eb6

SHA1
6db46eb021855a587c95479422adcc774a272eeb

SHA256
8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183

SHA512
bafc441198d03f0e7fe804bab89283c389d38884d0f87d81b11950a9b79fcbf7b32be4bb16f4fcd9179b66f865c563c172a46b4514a6087ef0af64425a4b2cfa

Download Submit
memory/1948-0-0x0000000000400000-0x0000000000DD8000-memory.dmp

Filesize
9.8MB

Download
memory/1948-69-0x0000000000400000-0x0000000000DD8000-memory.dmp

Filesize
9.8MB

Download
memory/1948-2-0x0000000075190000-0x00000000751C9000-memory.dmp

Filesize
228KB

Download
memory/1948-1-0x0000000000400000-0x0000000000DD8000-memory.dmp

Filesize
9.8MB

Download
memory/1948-47-0x0000000073C40000-0x0000000073C79000-memory.dmp

Filesize
228KB

Download
memory/3152-46-0x00000000742E0000-0x0000000074304000-memory.dmp

Filesize
144KB

Download
memory/3152-65-0x0000000074210000-0x00000000742DE000-memory.dmp

Filesize
824KB

Download
memory/3152-40-0x00000000015C0000-0x0000000001609000-memory.dmp

Filesize
292KB

Download
memory/3152-39-0x00000000741C0000-0x0000000074209000-memory.dmp

Filesize
292KB

Download
memory/3152-42-0x0000000074020000-0x000000007412A000-memory.dmp

Filesize
1.0MB

Download
memory/3152-38-0x0000000074210000-0x00000000742DE000-memory.dmp

Filesize
824KB

Download
memory/3152-37-0x00000000745E0000-0x00000000746A8000-memory.dmp

Filesize
800KB

Download
memory/3152-36-0x0000000074310000-0x00000000745DF000-memory.dmp

Filesize
2.8MB

Download
memory/3152-61-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-62-0x0000000074310000-0x00000000745DF000-memory.dmp

Filesize
2.8MB

Download
memory/3152-63-0x00000000745E0000-0x00000000746A8000-memory.dmp

Filesize
800KB

Download
memory/3152-41-0x0000000074130000-0x00000000741B8000-memory.dmp

Filesize
544KB

Download
memory/3152-20-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-81-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-88-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-97-0x0000000000D60000-0x0000000000DA9000-memory.dmp

Filesize
292KB

Download
memory/3152-96-0x00000000015C0000-0x0000000001609000-memory.dmp

Filesize
292KB

Download
memory/3152-101-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-112-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-120-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-128-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-139-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download
memory/3152-147-0x0000000000DB0000-0x00000000011B4000-memory.dmp

Filesize
4.0MB

Download