4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985

Analysis

max time kernel
154s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:35

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General

Target

4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe
Size

3.3MB
MD5

cf4db862243ad0f7a3a62d70d12a7973
SHA1

51202e70c5340efb253dc23f492976c19dc945ef
SHA256

4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985
SHA512

d7ebc44e05ad092128a14a51c0cd5015ca74d92ef60aa529a38b2913aca148b93fb8f68116e829e3770aed0441624ac1761a47429408fae6aa0f8479364d8778
SSDEEP

49152:E9BfDauF3rt3g7GNBamkmmCwLtLV3viyKXtLGNWImgPIsxmHCpswILEtLr:EfTxzG7CwdV3vidSWHFCmLwr

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 5 IoCs

Processes:

reg64.exetmm32.exebot.exeirsetup.exetmm32.exe

pid process

4848 reg64.exe
3564 tmm32.exe
5060 bot.exe
3296 irsetup.exe
1444 tmm32.exe

pid	process
4848	reg64.exe
3564	tmm32.exe
5060	bot.exe
3296	irsetup.exe
1444	tmm32.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe	upx
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe	upx
behavioral2/memory/3296-148-0x0000000000400000-0x00000000007CB000-memory.dmp	upx
behavioral2/memory/3296-157-0x0000000000400000-0x00000000007CB000-memory.dmp	upx

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

bot.exe4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exereg64.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	bot.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	reg64.exe

Loads dropped DLL 1 IoCs

Processes:

irsetup.exe

pid process

3296 irsetup.exe

pid	process
3296	irsetup.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tmm32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	tmm32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tmm32.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmm32.exe"	tmm32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmm32.exe

description pid process target process

PID 3564 set thread context of 1444 3564 tmm32.exe tmm32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 3564 set thread context of 1444	3564	tmm32.exe	tmm32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

tmm32.exe

pid	process
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe
1444	tmm32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

bot.exetmm32.exeirsetup.exe

pid process

5060 bot.exe
3564 tmm32.exe
3296 irsetup.exe
3296 irsetup.exe
3296 irsetup.exe
3296 irsetup.exe

pid	process
5060	bot.exe
3564	tmm32.exe
3296	irsetup.exe
3296	irsetup.exe
3296	irsetup.exe
3296	irsetup.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exereg64.exebot.exetmm32.exe

description	pid	process	target process
PID 4952 wrote to memory of 4848	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	reg64.exe
PID 4952 wrote to memory of 4848	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	reg64.exe
PID 4952 wrote to memory of 4848	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	reg64.exe
PID 4952 wrote to memory of 5060	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	bot.exe
PID 4952 wrote to memory of 5060	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	bot.exe
PID 4952 wrote to memory of 5060	4952	4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe	bot.exe
PID 4848 wrote to memory of 3564	4848	reg64.exe	tmm32.exe
PID 4848 wrote to memory of 3564	4848	reg64.exe	tmm32.exe
PID 4848 wrote to memory of 3564	4848	reg64.exe	tmm32.exe
PID 5060 wrote to memory of 3296	5060	bot.exe	irsetup.exe
PID 5060 wrote to memory of 3296	5060	bot.exe	irsetup.exe
PID 5060 wrote to memory of 3296	5060	bot.exe	irsetup.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe
PID 3564 wrote to memory of 1444	3564	tmm32.exe	tmm32.exe

C:\Users\Admin\AppData\Local\Temp\4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe
"C:\Users\Admin\AppData\Local\Temp\4dbeb5d0b48223cc303818527e0f8d2d254a9163343927516dc5723ecf5a6985.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4952

C:\Users\Admin\AppData\Local\Temp\reg64.exe
"C:\Users\Admin\AppData\Local\Temp\reg64.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4848

C:\Users\Admin\AppData\Local\Temp\tmm32.exe
"C:\Users\Admin\AppData\Local\Temp\tmm32.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3564

C:\Users\Admin\AppData\Local\Temp\tmm32.exe
"C:\Users\Admin\AppData\Local\Temp\tmm32.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:1444

C:\Users\Admin\AppData\Local\Temp\bot.exe
"C:\Users\Admin\AppData\Local\Temp\bot.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5060

C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
"C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:1749498 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\bot.exe" "__IRCT:3" "__IRTSS:2621767" "__IRSID:S-1-5-21-2295526160-1155304984-640977766-1000"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:3296

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
Filesize
1.3MB

MD5
1437d30476f86879af27aa3c4f5cf2ef

SHA1
cea48b9a0103cb60738fe23c2927c02880d7d954

SHA256
9a7bb59efdca3a44db5227ed2a501681e976ec53dce37934990c36b58d51e783

SHA512
41c17395e32949f11214295a4237a3e1f80b29a6299f79f7764b5990bff73434d3c60084461d872361fb275dca943a8a7fb770fd9d8d542b2cd3091e4d533ac6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
Filesize
1.3MB

MD5
1437d30476f86879af27aa3c4f5cf2ef

SHA1
cea48b9a0103cb60738fe23c2927c02880d7d954

SHA256
9a7bb59efdca3a44db5227ed2a501681e976ec53dce37934990c36b58d51e783

SHA512
41c17395e32949f11214295a4237a3e1f80b29a6299f79f7764b5990bff73434d3c60084461d872361fb275dca943a8a7fb770fd9d8d542b2cd3091e4d533ac6

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll
Filesize
318KB

MD5
b5fc476c1bf08d5161346cc7dd4cb0ba

SHA1
280fac9cf711d93c95f6b80ac97d89cf5853c096

SHA256
12cb9b8f59c00ef40ea8f28bfc59a29f12dc28332bf44b1a5d8d6a8823365650

SHA512
17fa97f399287b941e958d2d42fe6adb62700b01d9dbe0c824604e8e06d903b330f9d7d8ffb109bfb7f6742f46e7e9cedad6981f0d94d629b8402d0a0174f697

Download Submit
C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\lua5.1.dll
Filesize
318KB

MD5
b5fc476c1bf08d5161346cc7dd4cb0ba

SHA1
280fac9cf711d93c95f6b80ac97d89cf5853c096

SHA256
12cb9b8f59c00ef40ea8f28bfc59a29f12dc28332bf44b1a5d8d6a8823365650

SHA512
17fa97f399287b941e958d2d42fe6adb62700b01d9dbe0c824604e8e06d903b330f9d7d8ffb109bfb7f6742f46e7e9cedad6981f0d94d629b8402d0a0174f697

Download Submit
C:\Users\Admin\AppData\Local\Temp\bot.exe
Filesize
2.5MB

MD5
2464b4bf0871616c933bfe12f5b2ab71

SHA1
561f70e457cb22fcbe344e4605be3ee9f2ddd606

SHA256
65bf4a5ab8bd9e351c01a2a45eec3062e39717e6dc4694ed7c1f7b54f3d38f75

SHA512
3cdbd672c92c0808e11197577564a53db1560065b45aa57aabe2a4df0c2c2aa93357762359d575a0bafb2750239dda26689d82135656e12ae749e85ccc1e400b

Download Submit
C:\Users\Admin\AppData\Local\Temp\bot.exe
Filesize
2.5MB

MD5
2464b4bf0871616c933bfe12f5b2ab71

SHA1
561f70e457cb22fcbe344e4605be3ee9f2ddd606

SHA256
65bf4a5ab8bd9e351c01a2a45eec3062e39717e6dc4694ed7c1f7b54f3d38f75

SHA512
3cdbd672c92c0808e11197577564a53db1560065b45aa57aabe2a4df0c2c2aa93357762359d575a0bafb2750239dda26689d82135656e12ae749e85ccc1e400b

Download Submit
C:\Users\Admin\AppData\Local\Temp\reg64.exe
Filesize
525KB

MD5
513d7b7802c59b1da771eaf8603dee9d

SHA1
8b6dc913f4fc7d20f68cd9dc123f74e5eb3a138a

SHA256
2e666dc99f813f62d2f6caf7dc0b152863be2997852ab3e48cc24afe7e1c921f

SHA512
dd0b2f591892741ae7b09d02a58d72021ad446af07274ff167db088622fa409d9ad7eba50807f33f15707d98bfb643f2953a2646819078ebdd985eb6bf34577c

Download Submit
C:\Users\Admin\AppData\Local\Temp\reg64.exe
Filesize
525KB

MD5
513d7b7802c59b1da771eaf8603dee9d

SHA1
8b6dc913f4fc7d20f68cd9dc123f74e5eb3a138a

SHA256
2e666dc99f813f62d2f6caf7dc0b152863be2997852ab3e48cc24afe7e1c921f

SHA512
dd0b2f591892741ae7b09d02a58d72021ad446af07274ff167db088622fa409d9ad7eba50807f33f15707d98bfb643f2953a2646819078ebdd985eb6bf34577c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tbi74.dll
Filesize
24B

MD5
708c2b4003fe7087c097b310c12682b5

SHA1
fbb0d028cfb82c271f6114e165219fd9a8e9319a

SHA256
eb5221bd93e012a2da8d8e63fd5efd04afd8114f1fd9c0842cde3220b4c49cdb

SHA512
061b36583352fb72bf6a777f646f5d59671cdecb8cdf421011890c59dbc5976773288c6114b644ec36572db9f4ce4f19b668cc240ba52c14a9d50800e5e858f8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmm32.exe
Filesize
620KB

MD5
dcb0eecb3bce6375ccc4be7a020aa625

SHA1
7190ddeeb09857e19badf8a2d077fdbaad3a918b

SHA256
74ede674fc2f9dec1aa9111e99f9b05317750c98a696bc0c816630deef05ec68

SHA512
e37bb8d5f9a0f57bb1ea61e888c3dcafaf2849158f8e0645bb61b1f2fc1b22c66410da36ea49c51bb001970c08312a6a0bf5882863b3b076c376d8f50a5c7fed

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmm32.exe
Filesize
620KB

MD5
dcb0eecb3bce6375ccc4be7a020aa625

SHA1
7190ddeeb09857e19badf8a2d077fdbaad3a918b

SHA256
74ede674fc2f9dec1aa9111e99f9b05317750c98a696bc0c816630deef05ec68

SHA512
e37bb8d5f9a0f57bb1ea61e888c3dcafaf2849158f8e0645bb61b1f2fc1b22c66410da36ea49c51bb001970c08312a6a0bf5882863b3b076c376d8f50a5c7fed

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmm32.exe
Filesize
620KB

MD5
dcb0eecb3bce6375ccc4be7a020aa625

SHA1
7190ddeeb09857e19badf8a2d077fdbaad3a918b

SHA256
74ede674fc2f9dec1aa9111e99f9b05317750c98a696bc0c816630deef05ec68

SHA512
e37bb8d5f9a0f57bb1ea61e888c3dcafaf2849158f8e0645bb61b1f2fc1b22c66410da36ea49c51bb001970c08312a6a0bf5882863b3b076c376d8f50a5c7fed

Download Submit
memory/1444-153-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1444-149-0x0000000000000000-mapping.dmp

Download
memory/1444-150-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1444-154-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1444-155-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1444-158-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/3296-143-0x0000000000000000-mapping.dmp

Download
memory/3296-148-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/3296-157-0x0000000000400000-0x00000000007CB000-memory.dmp

Filesize
3.8MB

Download
memory/3564-152-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3564-135-0x0000000000000000-mapping.dmp

Download
memory/4848-132-0x0000000000000000-mapping.dmp

Download
memory/5060-138-0x0000000000000000-mapping.dmp

Download