xmrig | d838aec8129b940ee31f463e8264e578ba28e36b2dffe4c3ad89d8d8ed16953d

Analysis

max time kernel
137s
max time network
118s
platform
windows7_x64
resource
win7-en-20211014
submitted
20-10-2021 12:22

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General

Target

7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
Size

2.2MB
MD5

7d5d33a41a2e00a719fd1b8e99dbdfcb
SHA1

3eaa0173ff8b7271a38df63c57c833e0119a315f
SHA256

d838aec8129b940ee31f463e8264e578ba28e36b2dffe4c3ad89d8d8ed16953d
SHA512

512fb3fb212bb168d4ba80d647f312ed39432ca6c0fa1e67aae1835b151b05a466a8854fa061eea5de38265317b82ed9a587611f222df2a981d7197f343f2d52

Score

10^/10

xmrig discovery evasion miner spyware stealer themida trojan

Malware Config

Signatures

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

fl.exechromy.exesihost32.exe

pid process

1056 fl.exe
1200 chromy.exe
1076 sihost32.exe

pid	process
1056	fl.exe
1200	chromy.exe
1076	sihost32.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

Loads dropped DLL 6 IoCs

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.execmd.execonhost.exe

pid process

1648 7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1648 7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
320 cmd.exe
320 cmd.exe
1308 conhost.exe
1308 conhost.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
320	cmd.exe
320	cmd.exe
1308	conhost.exe
1308	conhost.exe

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1648-57-0x0000000000B30000-0x0000000000B31000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

Drops file in System32 directory 3 IoCs

Processes:

conhost.execonhost.exe

description	ioc	process
File created	C:\Windows\system32\chromy.exe	conhost.exe
File opened for modification	C:\Windows\system32\chromy.exe	conhost.exe
File created	C:\Windows\system32\Microsoft\Telemetry\sihost32.exe	conhost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

pid process

1648 7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1720 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.execonhost.execonhost.exe

pid process

1648 7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1648 7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1948 conhost.exe
1308 conhost.exe
1308 conhost.exe

pid	process
1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe

pid	process
1720	schtasks.exe

pid	process
1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
1948	conhost.exe
1308	conhost.exe
1308	conhost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.execonhost.execonhost.exe

description	pid	process
Token: SeDebugPrivilege	1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
Token: SeDebugPrivilege	1948	conhost.exe
Token: SeDebugPrivilege	1308	conhost.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

7d5d33a41a2e00a719fd1b8e99dbdfcb.exefl.execonhost.execmd.execmd.exechromy.execonhost.exesihost32.exe

description	pid	process	target process
PID 1648 wrote to memory of 1056	1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe	fl.exe
PID 1648 wrote to memory of 1056	1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe	fl.exe
PID 1648 wrote to memory of 1056	1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe	fl.exe
PID 1648 wrote to memory of 1056	1648	7d5d33a41a2e00a719fd1b8e99dbdfcb.exe	fl.exe
PID 1056 wrote to memory of 1948	1056	fl.exe	conhost.exe
PID 1056 wrote to memory of 1948	1056	fl.exe	conhost.exe
PID 1056 wrote to memory of 1948	1056	fl.exe	conhost.exe
PID 1056 wrote to memory of 1948	1056	fl.exe	conhost.exe
PID 1948 wrote to memory of 1224	1948	conhost.exe	cmd.exe
PID 1948 wrote to memory of 1224	1948	conhost.exe	cmd.exe
PID 1948 wrote to memory of 1224	1948	conhost.exe	cmd.exe
PID 1224 wrote to memory of 1720	1224	cmd.exe	schtasks.exe
PID 1224 wrote to memory of 1720	1224	cmd.exe	schtasks.exe
PID 1224 wrote to memory of 1720	1224	cmd.exe	schtasks.exe
PID 1948 wrote to memory of 320	1948	conhost.exe	cmd.exe
PID 1948 wrote to memory of 320	1948	conhost.exe	cmd.exe
PID 1948 wrote to memory of 320	1948	conhost.exe	cmd.exe
PID 320 wrote to memory of 1200	320	cmd.exe	chromy.exe
PID 320 wrote to memory of 1200	320	cmd.exe	chromy.exe
PID 320 wrote to memory of 1200	320	cmd.exe	chromy.exe
PID 1200 wrote to memory of 1308	1200	chromy.exe	conhost.exe
PID 1200 wrote to memory of 1308	1200	chromy.exe	conhost.exe
PID 1200 wrote to memory of 1308	1200	chromy.exe	conhost.exe
PID 1200 wrote to memory of 1308	1200	chromy.exe	conhost.exe
PID 1308 wrote to memory of 1076	1308	conhost.exe	sihost32.exe
PID 1308 wrote to memory of 1076	1308	conhost.exe	sihost32.exe
PID 1308 wrote to memory of 1076	1308	conhost.exe	sihost32.exe
PID 1076 wrote to memory of 436	1076	sihost32.exe	conhost.exe
PID 1076 wrote to memory of 436	1076	sihost32.exe	conhost.exe
PID 1076 wrote to memory of 436	1076	sihost32.exe	conhost.exe
PID 1076 wrote to memory of 436	1076	sihost32.exe	conhost.exe

C:\Users\Admin\AppData\Local\Temp\7d5d33a41a2e00a719fd1b8e99dbdfcb.exe
"C:\Users\Admin\AppData\Local\Temp\7d5d33a41a2e00a719fd1b8e99dbdfcb.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1648

C:\Users\Admin\AppData\Local\Temp\fl.exe
"C:\Users\Admin\AppData\Local\Temp\fl.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\System32\conhost.exe
"C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\fl.exe"
3⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\System32\cmd.exe
"cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "chromy" /tr "C:\Windows\system32\chromy.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:1224

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "chromy" /tr "C:\Windows\system32\chromy.exe"
5⤵
- Creates scheduled task(s)
PID:1720

C:\Windows\System32\cmd.exe
"cmd" cmd /c "C:\Windows\system32\chromy.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:320

C:\Windows\system32\chromy.exe
C:\Windows\system32\chromy.exe
5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1200

C:\Windows\System32\conhost.exe
"C:\Windows\System32\conhost.exe" "C:\Windows\system32\chromy.exe"
6⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1308

C:\Windows\system32\Microsoft\Telemetry\sihost32.exe
"C:\Windows\system32\Microsoft\Telemetry\sihost32.exe"
7⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1076

C:\Windows\System32\conhost.exe
"C:\Windows\System32\conhost.exe" "/sihost32"
8⤵
PID:436

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\fl.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
C:\Users\Admin\AppData\Local\Temp\fl.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
C:\Windows\System32\Microsoft\Telemetry\sihost32.exe
MD5
6115dc43764a4b6d1f34abd22b07603b

SHA1
6c2c14f55abbcc7e1ba36bcd2872985aca2e51fc

SHA256
322139740c555577b8ce6830cd699ab2a4816ebc500e6241b2a000bc912e4f84

SHA512
fca1bf89dd13ba9877b15d4b23c982465d7f7f2f4f86c65a696920be8e61971f4e0792f6444ab6b8c0d4cb9a16d4d398e2356b01f11e8e4196930b644cf02a66

Download Submit
C:\Windows\System32\chromy.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
C:\Windows\system32\chromy.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
\Users\Admin\AppData\Local\Temp\fl.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
\Users\Admin\AppData\Local\Temp\fl.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
\Windows\System32\Microsoft\Telemetry\sihost32.exe
MD5
6115dc43764a4b6d1f34abd22b07603b

SHA1
6c2c14f55abbcc7e1ba36bcd2872985aca2e51fc

SHA256
322139740c555577b8ce6830cd699ab2a4816ebc500e6241b2a000bc912e4f84

SHA512
fca1bf89dd13ba9877b15d4b23c982465d7f7f2f4f86c65a696920be8e61971f4e0792f6444ab6b8c0d4cb9a16d4d398e2356b01f11e8e4196930b644cf02a66

Download Submit
\Windows\System32\Microsoft\Telemetry\sihost32.exe
MD5
6115dc43764a4b6d1f34abd22b07603b

SHA1
6c2c14f55abbcc7e1ba36bcd2872985aca2e51fc

SHA256
322139740c555577b8ce6830cd699ab2a4816ebc500e6241b2a000bc912e4f84

SHA512
fca1bf89dd13ba9877b15d4b23c982465d7f7f2f4f86c65a696920be8e61971f4e0792f6444ab6b8c0d4cb9a16d4d398e2356b01f11e8e4196930b644cf02a66

Download Submit
\Windows\System32\chromy.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
\Windows\System32\chromy.exe
MD5
e95e86d659892b5da6feb76ca02c9ead

SHA1
667d39845315f8c80887d4659bf5391da79b1fa4

SHA256
9b98e63ce78e2bf53d7aa17a5962c78ce191a3ad1029325e614da9a715d1ad93

SHA512
8f9046f256c74300c273937be58ca995961f387f5339614247e9e3367793eb701db3a1b65997f9098e36846347b2216934b8f1070a84b27cc145ab1dd3ea863b

Download Submit
memory/320-74-0x0000000000000000-mapping.dmp

Download
memory/436-94-0x000000001AD94000-0x000000001AD96000-memory.dmp

Filesize
8KB

Download
memory/436-96-0x000000001AD97000-0x000000001AD98000-memory.dmp

Filesize
4KB

Download
memory/436-92-0x0000000000060000-0x0000000000066000-memory.dmp

Filesize
24KB

Download
memory/436-93-0x000000001AD92000-0x000000001AD94000-memory.dmp

Filesize
8KB

Download
memory/436-95-0x000000001AD96000-0x000000001AD97000-memory.dmp

Filesize
4KB

Download
memory/436-90-0x0000000000210000-0x0000000000213000-memory.dmp

Filesize
12KB

Download
memory/1056-62-0x0000000000000000-mapping.dmp

Download
memory/1076-84-0x0000000000000000-mapping.dmp

Download
memory/1200-78-0x0000000000000000-mapping.dmp

Download
memory/1224-68-0x0000000000000000-mapping.dmp

Download
memory/1308-86-0x000000001B252000-0x000000001B254000-memory.dmp

Filesize
8KB

Download
memory/1308-89-0x000000001B257000-0x000000001B258000-memory.dmp

Filesize
4KB

Download
memory/1308-88-0x000000001B256000-0x000000001B257000-memory.dmp

Filesize
4KB

Download
memory/1308-87-0x000000001B254000-0x000000001B256000-memory.dmp

Filesize
8KB

Download
memory/1648-54-0x0000000076431000-0x0000000076433000-memory.dmp

Filesize
8KB

Download
memory/1648-59-0x0000000002A60000-0x0000000002A61000-memory.dmp

Filesize
4KB

Download
memory/1648-57-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/1720-72-0x0000000000000000-mapping.dmp

Download
memory/1948-71-0x000000001B267000-0x000000001B268000-memory.dmp

Filesize
4KB

Download
memory/1948-69-0x000000001B264000-0x000000001B266000-memory.dmp

Filesize
8KB

Download
memory/1948-70-0x000000001B266000-0x000000001B267000-memory.dmp

Filesize
4KB

Download
memory/1948-67-0x000000001B262000-0x000000001B264000-memory.dmp

Filesize
8KB

Download
memory/1948-65-0x000000001B4D0000-0x000000001B6BD000-memory.dmp

Filesize
1.9MB

Download
memory/1948-64-0x00000000000A0000-0x0000000000291000-memory.dmp

Filesize
1.9MB

Download