caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d

General

Target

caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe
Size

1.6MB
MD5

2b7823f86268bfb968865907ce46750a
SHA1

e5fdbeed91bc034728ddd79807fd0c5cce10df6b
SHA256

caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d
SHA512

bcfedf113c2008a1de006043c6dd4d9fd63be71a18bbb5709e73607693083a668e9b9c81c7a93064f054eafa9b4b6add28ff4c35203500feb2afb94c6280a0c5
SSDEEP

24576:72O/GlKfj2BeJbXJAdVutylJJmAdCDD0/ARLPCs8KrM3bD4d7g6zwm4m53Sb23:X9JautylSAdK0/ARLq7bDQ5kFm53Sy3

Score

9^/10

evasion persistence trojan

Malware Config

Signatures

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/4408-138-0x0000000000000000-mapping.dmp	MailPassView
behavioral2/memory/4408-139-0x0000000000400000-0x00000000004F0000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/4408-138-0x0000000000000000-mapping.dmp	WebBrowserPassView
behavioral2/memory/4408-139-0x0000000000400000-0x00000000004F0000-memory.dmp	WebBrowserPassView

Nirsoft 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4408-138-0x0000000000000000-mapping.dmp	Nirsoft
behavioral2/memory/4408-139-0x0000000000400000-0x00000000004F0000-memory.dmp	Nirsoft

Executes dropped EXE 1 IoCs

Processes:

acrob32.exe

pid process

2044 acrob32.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

Processes:

caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

acrob32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	acrob32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\C:\Users\Admin\d2vkfr8 = "C:\\Users\\Admin\\d2vkfr8\\liwqphgosxd.vbs"	acrob32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

acrob32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA acrob32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

acrob32.exe

description pid process target process

PID 2044 set thread context of 4408 2044 acrob32.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	acrob32.exe

description	pid	process	target process
PID 2044 set thread context of 4408	2044	acrob32.exe	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

acrob32.exe

pid	process
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe
2044	acrob32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exeacrob32.exe

description	pid	process	target process
PID 4040 wrote to memory of 2044	4040	caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe	acrob32.exe
PID 4040 wrote to memory of 2044	4040	caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe	acrob32.exe
PID 4040 wrote to memory of 2044	4040	caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe	acrob32.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe
PID 2044 wrote to memory of 4408	2044	acrob32.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe
"C:\Users\Admin\AppData\Local\Temp\caa697dcf338eec92ba2c1bddd242c659650cb161f47c1c239806d171e16ce5d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4040

C:\Users\Admin\d2vkfr8\acrob32.exe
"C:\Users\Admin\d2vkfr8\acrob32.exe" tolmkgbamw
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
3⤵
PID:4408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\d2vkfr8\acrob32.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
C:\Users\Admin\d2vkfr8\acrob32.exe
Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
C:\Users\Admin\d2vkfr8\arrgfr.PTT
Filesize
84B

MD5
05b3d58b2ea16dd9083e3a10787c6563

SHA1
1535f36c16d8346cdae641600167272167250db9

SHA256
d608f03ca15c996a4dc6ca0c5706acb5b61986ee8c8a7e108967ee6c619dc3ec

SHA512
45cf8258804c09e1fceed1546e2a13409aee3bd20f7498278e60080d5048cb9e592c03589306e24e35497ecc21f77c249451b70878e8b260ed8a411737928280

Download Submit
C:\Users\Admin\d2vkfr8\sqxp.WCT
Filesize
936KB

MD5
95562f764e16e1d2445b6449428a1839

SHA1
9ce1664ce6206e0c8a78e7de5a759643358cc505

SHA256
6b26fedf0364f8fd558f8c60279886529ba298b4f8e6c6a473772900a52e887e

SHA512
8fef2425f21bdd5c45b4470336284c53b5a5d0161be6c87906d0b684551c5edf5f7f88eb63e2aa167e5b47dce6c17ecd7354f948222243ca341a515b9bf30a19

Download Submit
C:\Users\Admin\d2vkfr8\tolmkgbamw
Filesize
306.2MB

MD5
07ae1fae147a2737c9c61f4c61efe8be

SHA1
626d33ed3de4f3e3d8cee6a93caccdf47e869e1c

SHA256
50cd946449317eb4a86d561450dd590247f3508c520391380ea3d4218d88e945

SHA512
fce031e74412a341f9c29bd4125e9c8d3460ad57dcd72183294f01c6ea3cf445914f53e6adb62d7a30431855f7228a1f0b0e1ce85c62560c85f131d2284ef479

Download Submit
memory/2044-132-0x0000000000000000-mapping.dmp

Download
memory/4408-138-0x0000000000000000-mapping.dmp

Download
memory/4408-139-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/4408-140-0x0000000073F90000-0x0000000074541000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads