3ba7c1a01fe40fab7b53ae3a50aaba4f1d1300a857f4b91352f2423a3f7a4cb2

General

Target

tmp.exe
Size

737KB
MD5

d54ddeb1ceaa4b97d777db0335765e31
SHA1

e7d5613db327190562de2c627afceef830195f6c
SHA256

3ba7c1a01fe40fab7b53ae3a50aaba4f1d1300a857f4b91352f2423a3f7a4cb2
SHA512

6d07511e8e97896b98b7dfe16adfd19027aff7d7c9b0ec221a5165be28e52d7cd659692ab0ad52db02addc0f0213e60d3fcc9eb9d0bcde1353a52b63e01115aa
SSDEEP

12288:f06gzHa2iNP1U8kM7j418EZYw4lB/brrGL98Muv6DXfuADUkySTLs7Tn:8TG1FDOTZYlhrGL98MJDUkRTL4z

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	2548	cmstp.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Control Panel\International\Geo\Nation	tmp.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	cmstp.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
T1552.001

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2616	3020	tmp.exe	30
PID 2616 set thread context of 1204	2616	tmp.exe	9
PID 2616 set thread context of 2548	2616	tmp.exe	31
PID 2548 set thread context of 1204	2548	cmstp.exe	9

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-86725733-3001458681-3405935542-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2616	tmp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2616	tmp.exe
1204	Explorer.EXE
1204	Explorer.EXE
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe
2548	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	tmp.exe
Token: SeDebugPrivilege	2548	cmstp.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 3020 wrote to memory of 2616	3020	tmp.exe	30
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 1204 wrote to memory of 2548	1204	Explorer.EXE	31
PID 2548 wrote to memory of 2196	2548	cmstp.exe	34
PID 2548 wrote to memory of 2196	2548	cmstp.exe	34
PID 2548 wrote to memory of 2196	2548	cmstp.exe	34
PID 2548 wrote to memory of 2196	2548	cmstp.exe	34
PID 2548 wrote to memory of 2196	2548	cmstp.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2616
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\wvn4axhh.zip

Filesize
553KB

MD5
5e2d04cb2fae4e811ca35675c472f5fc

SHA1
6e2359f8e81f1a1122d1fb50b064878f2aaefc68

SHA256
dd46a298ab90ca9ba8a1f633f20abe2dcb805596b5aa68dcb84cce99e3a56be1

SHA512
53c8701768ee4a43a6b2095af00aa5f2c53445021a91d3567d02cf8157c7b7c4e629c5c70bb24697d365a7c41c791af0c68b511ab3cf5f356d9d929618421d05

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
1.0MB

MD5
f1e5f58f9eb43ecec773acbdb410b888

SHA1
f1b8076b0bbde696694bbc0ab259a77893839464

SHA256
a15fd84ee61b54c92bb099dfb78226548f43d550c67fb6adf4cce3d064ab1c14

SHA512
0aff96430dd99bb227285fefc258014c301f85216c84e40f45702d26cdd7e77261a41fd3811d686f5fb2ee363cc651a014e8ffa339384004cece645a36486456

Download Submit
memory/1204-20-0x0000000008880000-0x000000000C5D9000-memory.dmp

Filesize
61.3MB

Download
memory/1204-30-0x0000000006B00000-0x0000000006BEC000-memory.dmp

Filesize
944KB

Download
memory/1204-34-0x0000000006B00000-0x0000000006BEC000-memory.dmp

Filesize
944KB

Download
memory/1204-31-0x0000000006B00000-0x0000000006BEC000-memory.dmp

Filesize
944KB

Download
memory/2548-32-0x00000000000D0000-0x0000000000106000-memory.dmp

Filesize
216KB

Download
memory/2548-33-0x0000000000A00000-0x0000000000A9D000-memory.dmp

Filesize
628KB

Download
memory/2548-75-0x0000000061E00000-0x0000000061EF1000-memory.dmp

Filesize
964KB

Download
memory/2548-28-0x0000000000A00000-0x0000000000A9D000-memory.dmp

Filesize
628KB

Download
memory/2548-27-0x00000000000D0000-0x0000000000106000-memory.dmp

Filesize
216KB

Download
memory/2548-26-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/2548-23-0x00000000000D0000-0x0000000000106000-memory.dmp

Filesize
216KB

Download
memory/2548-22-0x00000000000D0000-0x0000000000106000-memory.dmp

Filesize
216KB

Download
memory/2616-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-14-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-19-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-21-0x00000000002E0000-0x00000000002FE000-memory.dmp

Filesize
120KB

Download
memory/2616-17-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-16-0x0000000000810000-0x0000000000B13000-memory.dmp

Filesize
3.0MB

Download
memory/2616-10-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-24-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-25-0x00000000002E0000-0x00000000002FE000-memory.dmp

Filesize
120KB

Download
memory/2616-18-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2616-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-15-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/3020-0-0x00000000010F0000-0x00000000011AE000-memory.dmp

Filesize
760KB

Download
memory/3020-7-0x0000000004FA0000-0x000000000501A000-memory.dmp

Filesize
488KB

Download
memory/3020-6-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/3020-5-0x0000000004DF0000-0x0000000004E30000-memory.dmp

Filesize
256KB

Download
memory/3020-4-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/3020-3-0x00000000004B0000-0x00000000004C8000-memory.dmp

Filesize
96KB

Download
memory/3020-2-0x0000000004DF0000-0x0000000004E30000-memory.dmp

Filesize
256KB

Download
memory/3020-1-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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